1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206 1207 1208 1209 1210 1211 1212 1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288 1289 1290 1291 1292 1293 1294 1295 1296 1297 1298 1299 1300 1301 1302 1303 1304 1305 1306 1307 1308 1309 1310 1311 1312 1313 1314 1315 1316 1317 1318 1319 1320 1321 1322 1323 1324 1325 1326 1327 1328 1329 1330 1331 1332 1333 1334 1335 1336 1337 1338 1339 1340 1341 1342 1343 1344 1345 1346 1347 1348 1349 1350 1351 1352 1353 1354 1355 1356 1357 1358 1359 1360 1361 1362 1363
| <?php
/**
* WordPress DB Class
*
* Original code from {@link http://php.justinvincent.com Justin Vincent (justin@visunet.ie)}
*
* @package WordPress
* @subpackage Database
* @since 0.71
*/
/**
* @since 0.71
*/
define('EZSQL_VERSION', 'WP1.25');
/**
* @since 0.71
*/
define('OBJECT', 'OBJECT', true);
/**
* @since {@internal Version Unknown}}
*/
define('OBJECT_K', 'OBJECT_K', false);
/**
* @since 0.71
*/
define('ARRAY_A', 'ARRAY_A', false);
/**
* @since 0.71
*/
define('ARRAY_N', 'ARRAY_N', false);
/**
* WordPress Database Access Abstraction Object
*
* It is possible to replace this class with your own
* by setting the $wpdb global variable in wp-content/db.php
* file with your class. You can name it wpdb also, since
* this file will not be included, if the other file is
* available.
*
* @link http://codex.wordpress.org/Function_Reference/wpdb_Class
*
* @package WordPress
* @subpackage Database
* @since 0.71
* @final
*/
class wpdb {
/**
* Whether to show SQL/DB errors
*
* @since 0.71
* @access private
* @var bool
*/
var $show_errors = false;
/**
* Whether to suppress errors during the DB bootstrapping.
*
* @access private
* @since {@internal Version Unknown}}
* @var bool
*/
var $suppress_errors = false;
/**
* The last error during query.
*
* @since {@internal Version Unknown}}
* @var string
*/
var $last_error = '';
/**
* Amount of queries made
*
* @since 1.2.0
* @access private
* @var int
*/
var $num_queries = 0;
/**
* Saved result of the last query made
*
* @since 1.2.0
* @access private
* @var array
*/
var $last_query;
/**
* Saved info on the table column
*
* @since 1.2.0
* @access private
* @var array
*/
var $col_info;
/**
* Saved queries that were executed
*
* @since 1.5.0
* @access private
* @var array
*/
var $queries;
/**
* WordPress table prefix
*
* You can set this to have multiple WordPress installations
* in a single database. The second reason is for possible
* security precautions.
*
* @since 0.71
* @access private
* @var string
*/
var $prefix = '';
/**
* Whether the database queries are ready to start executing.
*
* @since 2.5.0
* @access private
* @var bool
*/
var $ready = false;
/**
* WordPress Posts table
*
* @since 1.5.0
* @access public
* @var string
*/
var $posts;
/**
* WordPress Users table
*
* @since 1.5.0
* @access public
* @var string
*/
var $users;
/**
* WordPress Categories table
*
* @since 1.5.0
* @access public
* @var string
*/
var $categories;
/**
* WordPress Post to Category table
*
* @since 1.5.0
* @access public
* @var string
*/
var $post2cat;
/**
* WordPress Comments table
*
* @since 1.5.0
* @access public
* @var string
*/
var $comments;
/**
* WordPress Links table
*
* @since 1.5.0
* @access public
* @var string
*/
var $links;
/**
* WordPress Options table
*
* @since 1.5.0
* @access public
* @var string
*/
var $options;
/**
* WordPress Post Metadata table
*
* @since {@internal Version Unknown}}
* @access public
* @var string
*/
var $postmeta;
/**
* WordPress User Metadata table
*
* @since 2.3.0
* @access public
* @var string
*/
var $usermeta;
/**
* WordPress Terms table
*
* @since 2.3.0
* @access public
* @var string
*/
var $terms;
/**
* WordPress Term Taxonomy table
*
* @since 2.3.0
* @access public
* @var string
*/
var $term_taxonomy;
/**
* WordPress Term Relationships table
*
* @since 2.3.0
* @access public
* @var string
*/
var $term_relationships;
/**
* List of WordPress tables
*
* @since {@internal Version Unknown}}
* @access private
* @var array
*/
var $tables = array('users', 'usermeta', 'posts', 'categories', 'post2cat', 'comments', 'links', 'link2cat', 'options',
'postmeta', 'terms', 'term_taxonomy', 'term_relationships');
/**
* Database table columns charset
*
* @since 2.2.0
* @access public
* @var string
*/
var $charset;
/**
* Database table columns collate
*
* @since 2.2.0
* @access public
* @var string
*/
var $collate;
/**
* Connects to the database server and selects a database
*
* PHP4 compatibility layer for calling the PHP5 constructor.
*
* @uses wpdb::__construct() Passes parameters and returns result
* @since 0.71
*
* @param string $dbuser MySQL database user
* @param string $dbpassword MySQL database password
* @param string $dbname MySQL database name
* @param string $dbhost MySQL database host
*/
function wpdb ($dbuser, $dbpassword, $dbname, $dbhost) {
return $this->__construct ($dbuser, $dbpassword, $dbname, $dbhost);
}
/**
* Connects to the database server and selects a database
*
* PHP5 style constructor for compatibility with PHP5. Does
* the actual setting up of the class properties and connection
* to the database.
*
* @since 2.0.8
*
* @param string $dbuser MySQL database user
* @param string $dbpassword MySQL database password
* @param string $dbname MySQL database name
* @param string $dbhost MySQL database host
*/
function __construct ($dbuser, $dbpassword, $dbname, $dbhost) {
register_shutdown_function(array(&$this, "__destruct"));
if ( defined('WP_DEBUG') and WP_DEBUG == true )
$this->show_errors();
// which database to select
$selectedName = '';
$sync_selectedName = '';
// get array values
$dbuser = unserialize($dbuser);
$dbpassword = unserialize($dbpassword);
$dbname = unserialize($dbname);
$dbhost = unserialize($dbhost);
$dbssl = null;
if ( defined('DB_SSL') ) {
$dbssl = unserialize(DB_SSL );
}
$dbtimeout = null;
if ( defined('DB_TIMEOUT') ) {
$dbtimeout = unserialize(DB_TIMEOUT );
}
$dbcharset = null;
if ( defined('DB_CHARSET') ) {
$dbcharset = unserialize(DB_CHARSET );
}
$dbcollate = null;
if ( defined('DB_COLLATE') ) {
$dbcollate = unserialize(DB_COLLATE );
}
$this->dbh = false;
$this->sync_dbh = false;
$this->maindb = -1;
$this->syncdb = -1;
$this->transcount = 0;
$this->sync_transcount = 0;
$this->insync = true;
$this->syncing = false;
$this->synclevel = 'none';
if (defined('SYNC_LEVEL')) {
$this->synclevel = SYNC_LEVEL ;
}
$this->ignoreresult = 'true';
if (defined('SYNC_IGNORE_RESULT')) {
$this->ignoreresult = SYNC_IGNORE_RESULT ;
}
$this->translog = 'translog';
// get number of available complete config sets
$minCount = count($dbuser);
if (count($dbpassword) < $minCount) { $minCount = count($dbpassword); }
if (count($dbname) < $minCount) { $minCount = count($dbname); }
if (count($dbhost) < $minCount) { $minCount = count($dbhost); }
if ($dbssl != null) { if (count($dbssl) < $minCount) { $minCount = count($dbssl); } }
if ($dbtimeout != null) { if (count($dbtimeout) < $minCount) { $minCount = count($dbtimeout); } }
if ($dbcharset != null) { if (count($dbcharset) < $minCount) { $minCount = count($dbcharset); } }
if ($dbcollate != null) { if (count($dbcollate) < $minCount) { $minCount = count($dbcollate); } }
// find first working config set
if ($minCount > 0 ) {
$index = 0;
// allow manual selection of used config set
$dbid = null;
if ((defined('ENABLE_DB_SELECT')) && (ENABLE_DB_SELECT == 'true')) {
if (isset($_GET['dbid'])) {
$dbid = $_GET['dbid'];
} else {
if (isset($_COOKIE['dbid'])) {
$dbid = $_COOKIE['dbid'];
}
}
if ($dbid != null) {
if (isset($_SERVER['HTTP_HOST'])) {
$domain = $_SERVER['HTTP_HOST'];
} else {
$domain = $_SERVER['SERVER_NAME'];
}
if ((!empty($dbid)) && (is_numeric($dbid))) {
$dbid = intval($dbid);
if ($minCount > $dbid) {
$index = $dbid;
$minCount = $dbid + 1;
}
setcookie('dbid', $dbid, time() + 300000, '/', $domain);
} else {
setcookie('dbid', '', time(), '/', $domain);
}
}
}
if (($this->synclevel != 'none') && (($dbid == null) || ($this->synclevel != 'sync'))) {
if ((defined('SYNC_BACKUP_DB')) && (SYNC_BACKUP_DB > 0 )) {
$this->syncdb = SYNC_BACKUP_DB ;
if (defined('SYNC_TRANSLOG_TABLE')) {
$sync_translog_table = SYNC_TRANSLOG_TABLE ;
if (!empty($sync_translog_table)) {
$this->translog = $sync_translog_table;
}
}
}
}
do {
$selectedName = $dbname[$index];
if ($dbtimeout != null) {
ini_set('mysql.connect_timeout', $dbtimeout[$index]); // set connect timeout
}
if (($dbssl != null) && ($dbssl[$index] == 'true')) {
$this->dbh = @mysql_connect($dbhost[$index], $dbuser[$index], $dbpassword[$index], true, CLIENT_SSL );
} else {
$this->dbh = @mysql_connect($dbhost[$index], $dbuser[$index], $dbpassword[$index], true);
}
if ($dbcharset != null) {
$this->charset = $dbcharset[$index];
}
if ($dbcollate != null) {
$this->collate = $dbcollate[$index];
}
$index++;
} while ((!$this->dbh) && ($index < $minCount));
// set currently selected db index
if ($this->dbh != false) {
$this->maindb = $index - 1;
}
// open sync database
if ($this->synclevel != 'none') {
if (($this->maindb == 0 ) && ($this->syncdb > 0 ) && ($this->syncdb < $minCount)) {
$sync_selectedName = $dbname[$this->syncdb];
if ($dbtimeout != null) {
ini_set('mysql.connect_timeout', $dbtimeout[$this->syncdb]); // set connect timeout
}
if (($dbssl != null) && ($dbssl[$this->syncdb] == 'true')) {
$this->sync_dbh = @mysql_connect($dbhost[$this->syncdb], $dbuser[$this->syncdb], $dbpassword[$this->syncdb], true, CLIENT_SSL );
} else {
$this->sync_dbh = @mysql_connect($dbhost[$this->syncdb], $dbuser[$this->syncdb], $dbpassword[$this->syncdb], true);
}
if ($dbcharset != null) {
$this->sync_charset = $dbcharset[$this->syncdb];
}
if ($dbcollate != null) {
$this->sync_collate = $dbcollate[$this->syncdb];
}
}
}
}
if (!$this->dbh) {
$this->bail(sprintf(/*WP_I18N_DB_CONN_ERROR*/'
<h1>Fehler beim Aufbau einer Datenbank-Verbindung.</h1><p>Das bedeutet, dass entweder Benutzername/Passwort in Ihrer <code>wp-config.php</code> falsch sind, oder dass der Datenbanksserver <code>$dbhost</code> nicht erreichbar ist.</p><ul> <li>Sind Sie sicher, dass Ihr Benutzername und Ihr Passwort korrekt sind?</li> <li>Sind Sie sicher, dass Sie den richtigen Hostnamen eingegeben haben?</li> <li>Sind Sie sicher, dass der Datenbankserver läuft und erreichbar ist?</li></ul><p>Falls Sie nicht wissen, was die obigen Begriffe bedeuten, sollten Sie sich an Ihren Hoster wenden. Falls Sie sonst Hilfe benötigen, wenden Sie sich bitte an das <a href=\'http://wordpress.org/support/\'>WordPress-Supportforum</a>.</p>
'/*/WP_I18N_DB_CONN_ERROR*/, $dbhost));
return;
}
$this->ready = true;
// set main db and create translog table if needed
if ($this->dbh != false) {
if ( $this->has_cap( 'collation', $this->dbh ) ) {
$collation_query = '';
if ( !empty($this->charset) ) {
$collation_query = "SET NAMES '{$this->charset}'";
if (!empty($this->collate) )
$collation_query .= " COLLATE '{$this->collate}'";
}
if ( !empty($collation_query) )
$this->query($collation_query, $this->dbh, false);
}
$this->select($selectedName, $this->dbh);
if ($this->synclevel != 'none') {
if ($this->syncdb > 0 ) {
$this->query('CREATE TABLE IF NOT EXISTS ' . $this->translog . ' (id INT NOT NULL AUTO_INCREMENT, time INT NOT NULL, query LONGTEXT NOT NULL, affected INT NOT NULL DEFAULT 0, executed BOOL NOT NULL DEFAULT 0, done BOOL NOT NULL DEFAULT 0, PRIMARY KEY (id));', $this->dbh, false);
}
}
}
// set sync db and create translog table if needed
if ($this->sync_dbh != false) {
if ( $this->has_cap( 'collation', $this->sync_dbh ) ) {
$collation_query = '';
if ( !empty($this->sync_charset) ) {
$collation_query = "SET NAMES '{$this->sync_charset}'";
if (!empty($this->sync_collate) )
$collation_query .= " COLLATE '{$this->sync_collate}'";
}
if ( !empty($collation_query) )
$this->query($collation_query, $this->sync_dbh, false);
}
$this->select($sync_selectedName, $this->sync_dbh);
if ($this->synclevel == 'sync') {
if ($this->syncdb > 0 ) {
$this->query('CREATE TABLE IF NOT EXISTS ' . $this->translog . ' (id INT NOT NULL AUTO_INCREMENT, time INT NOT NULL, query LONGTEXT NOT NULL, affected INT NOT NULL DEFAULT 0, executed BOOL NOT NULL DEFAULT 0, done BOOL NOT NULL DEFAULT 0, PRIMARY KEY (id));', $this->sync_dbh, false);
}
}
}
// initiate synchronization
if ($this->synclevel != 'none') {
if (($this->dbh != false) && ($this->sync_dbh != false)) {
$dbtrans = $this->get_results('SELECT * FROM ' . $this->translog . ' ORDER BY id;', ARRAY_A , $this->dbh, false);
$this->transcount = count($dbtrans);
if ($this->synclevel == 'sync') {
$sync_dbtrans = $this->get_results('SELECT * FROM ' . $this->translog . ' ORDER BY id;', ARRAY_A , $this->sync_dbh, false);
$this->sync_transcount = count($sync_dbtrans);
}
// check if databases are in sync
$this->insync = (($this->transcount == 0 ) && ($this->sync_transcount == 0 ));
if (!$this->insync) {
$syncmain = false;
$syncsync = false;
// reset result arrays
if ($this->transcount > 0 ) {
reset($dbtrans);
$syncmain = true;
}
if ($this->sync_transcount > 0 ) {
reset($sync_transcount);
$syncsync = true;
}
// start sync status
$this->syncing = true;
do {
$selection = null;
$trans = null;
$sync_trans = null;
if ($this->transcount > 0 ) {
$trans = each($dbtrans);
$selection = $trans['value'];
}
if ($this->sync_transcount > 0 ) {
$sync_trans = each($sync_dbtrans);
if ($selection == null) {
$selection = $sync_trans['value'];
} else {
if ($sync_trans['value']['time'] < $trans['value']['time']) {
$selection = $sync_trans['value'];
prev($dbtrans);
} else {
prev($sync_dbtrans);
}
}
}
$affected = -1;
if (!$selection['executed']) {
if ($selection == $trans['value']) {
$affected = $this->query($selection['query'], $this->sync_dbh, false);
} else {
$affected = $this->query($selection['query'], $this->dbh, false);
}
// set $updatedentry
$updatedentry = array();
$updatedentry['id'] = $selection['id'];
// update translog table
$newdata = array();
$newdata['done'] = ($affected == $selection['affected']); // query has been successful
if (!$newdata['done']) {
$newdata['done'] = ($this->ignoreresult == 'true');
}
$newdata['executed'] = true; // query has been executed
// update translog table
if ($selection == $trans['value']) {
$this->update($this->translog, $newdata, $updatedentry, $this->dbh, false);
} else {
$this->update($this->translog, $newdata, $updatedentry, $this->sync_dbh, false);
}
if ($newdata['done']) {
if ($selection == $trans['value']) {
$this->transcount--;
} else {
$this->sync_transcount--;
}
}
}
// exit if something went wrong
if (($selection['executed']) || (($affected != $selection['affected']) && ($this->ignoreresult != 'true'))) {
break;
}
// do final check
$this->insync = (($this->transcount == 0 ) && ($this->sync_transcount == 0 ));
} while (!$this->insync);
// clear translog tables
if ($this->insync) {
if ($syncmain) {
foreach ($dbtrans as $transitem) {
$this->query('DELETE FROM ' . $this->translog . ' WHERE id = ' . $transitem['id'] . ';', $this->dbh, false);
}
}
if ($syncmain) {
foreach ($sync_dbtrans as $transitem) {
$this->query('DELETE FROM ' . $this->translog . ' WHERE id = ' . $transitem['id'] . ';', $this->sync_dbh, false);
}
}
}
// stop sync statis
$this->syncing = false;
}
}
}
}
/**
* PHP5 style destructor and will run when database object is destroyed.
*
* @since 2.0.8
*
* @return bool Always true
*/
function __destruct () {
/*
if ($this->dbh != false) {
mysql_close($this->dbh);
}
if ($this->sync_dbh != false) {
mysql_close($this->sync_dbh);
}
*/
return true;
}
/**
* Sets the table prefix for the WordPress tables.
*
* Also allows for the CUSTOM_USER_TABLE and CUSTOM_USER_META_TABLE to
* override the WordPress users and usersmeta tables.
*
* @since 2.5.0
*
* @param string $prefix Alphanumeric name for the new prefix.
* @return string Old prefix
*/
function set_prefix ($prefix) {
if ( preg_match('|[^a-z0-9_]|i', $prefix) )
return new WP_Error ('invalid_db_prefix', /*WP_I18N_DB_BAD_PREFIX*/'Ungültiges Tabellenpräfix'/*/WP_I18N_DB_BAD_PREFIX*/);
$old_prefix = $this->prefix;
$this->prefix = $prefix;
foreach ( (array) $this->tables as $table )
$this->$table = $this->prefix . $table;
if ( defined('CUSTOM_USER_TABLE') )
$this->users = CUSTOM_USER_TABLE ;
if ( defined('CUSTOM_USER_META_TABLE') )
$this->usermeta = CUSTOM_USER_META_TABLE ;
return $old_prefix;
}
/**
* Selects a database using the current database connection.
*
* The database name will be changed based on the current database
* connection. On failure, the execution will bail and display an DB error.
*
* @since 0.71
*
* @param string $db MySQL database name
* @return null Always null.
*/
function select ($db, $dblink = null) {
if ($dblink == null) {
$dblink = $this->dbh;
}
if (!@mysql_select_db($db, $dblink)) {
$this->ready = false;
$this->bail(sprintf(/*WP_I18N_DB_SELECT_DB*/'
<h1>Auf die Datenbank kann nicht zugegriffen werden.</h1><p>Es konnte zwar eine Verbindung zum Datenbankserver aufgebaut werden, was bedeutet, dass Ihr Benutzername und Ihr Passwort korrekt sind. Allerdings konnte nicht auf die Datenbank <code>%1$s</code> zugegriffen werden.</p><ul><li>Sind sie sicher, dass Sie existiert?</li><li>Auf manchen Systemen hat die Datenbank Ihren Benutzernamen als Präfix, d.h. der Name wäre dann <code>benutzername_%1$s</code>. Könnte das das Problem sein?</li></ul><p>Falls Sie nicht wissen, wie man eine Datenbank einrichtet, sollten Sie sich an Ihren Hoster wenden. Falls es partout nicht klappt, wenden Sie sich bitte an das <a href=\'http://wordpress.org/support/\'>WordPress-Supportforum</a>.</p>'/*/WP_I18N_DB_SELECT_DB*/, $db, DB_USER ));
return;
}
}
/**
* Escapes content for insertion into the database, for security
*
* @since 0.71
*
* @param string $string
* @return string query safe string
*/
function escape ($string) {
return addslashes( $string );
// Disable rest for now, causing problems
/*
if( !$this->dbh || version_compare( phpversion(), '4.3.0' ) == '-1' )
return mysql_escape_string( $string );
else
return mysql_real_escape_string( $string, $this->dbh );
*/
}
/**
* Escapes content by reference for insertion into the database, for security
*
* @since 2.3.0
*
* @param string $s
*/
function escape_by_ref (&$s) {
$s = $this->escape($s);
}
/**
* Prepares a SQL query for safe use, using sprintf() syntax.
*
* @link http://php.net/sprintf See for syntax to use for query string.
* @since 2.3.0
*
* @param null|string $args If string, first parameter must be query statement
* @param mixed $args,... If additional parameters, they will be set inserted into the query.
* @return null|string Sanitized query string
*/
function prepare ($args=null) {
if ( is_null( $args ) )
return;
$args = func_get_args();
$query = array_shift($args);
$query = str_replace("'%s'", '%s', $query); // in case someone mistakenly already singlequoted it
$query = str_replace('"%s"', '%s', $query); // doublequote unquoting
$query = str_replace('%s', "'%s'", $query); // quote the strings
array_walk($args, array(&$this, 'escape_by_ref'));
return @vsprintf($query, $args);
}
/**
* Print SQL/DB error.
*
* @since 0.71
* @global array $EZSQL_ERROR Stores error information of query and error string
*
* @param string $str The error to display
* @return bool False if the showing of errors is disabled.
*/
function print_error ($str = '') {
global $EZSQL_ERROR;
if (!$str) $str = mysql_error($this->dbh);
$EZSQL_ERROR[] = array ('query' => $this->last_query, 'error_str' => $str);
if ( $this->suppress_errors )
return false;
if ( $caller = $this->get_caller() )
$error_str = sprintf(/*WP_I18N_DB_QUERY_ERROR_FULL*/'WordPress-Datenbankfehler %1$s für die Abfrage %2$s in %3$s'/*/WP_I18N_DB_QUERY_ERROR_FULL*/, $str, $this->last_query, $caller);
else
$error_str = sprintf(/*WP_I18N_DB_QUERY_ERROR*/'WordPress-Datenbankfehler %1$s für die Abfrage %2$s'/*/WP_I18N_DB_QUERY_ERROR*/, $str, $this->last_query);
$log_error = true;
if ( ! function_exists('error_log') )
$log_error = false;
$log_file = @ini_get('error_log');
if ( !empty($log_file) && ('syslog' != $log_file) && !@is_writable($log_file) )
$log_error = false;
if ( $log_error )
@error_log($error_str, 0 );
// Is error output turned on or not..
if ( !$this->show_errors )
return false;
$str = htmlspecialchars($str, ENT_QUOTES);
$query = htmlspecialchars($this->last_query, ENT_QUOTES);
// If there is an error then take note of it
print "<div id='error'>
<p class='wpdberror'><strong>WordPress database error:</strong> [$str]<br />
<code>$query</code></p>
</div>";
}
/**
* Enables showing of database errors.
*
* This function should be used only to enable showing of errors.
* wpdb::hide_errors() should be used instead for hiding of errors. However,
* this function can be used to enable and disable showing of database
* errors.
*
* @since 0.71
*
* @param bool $show Whether to show or hide errors
* @return bool Old value for showing errors.
*/
function show_errors ( $show = true ) {
$errors = $this->show_errors;
$this->show_errors = $show;
return $errors;
}
/**
* Disables showing of database errors.
*
* @since 0.71
*
* @return bool Whether showing of errors was active or not
*/
function hide_errors () {
$show = $this->show_errors;
$this->show_errors = false;
return $show;
}
/**
* Whether to suppress database errors.
*
* @param unknown_type $suppress
* @return unknown
*/
function suppress_errors ( $suppress = true ) {
$errors = $this->suppress_errors;
$this->suppress_errors = $suppress;
return $errors;
}
/**
* Kill cached query results.
*
* @since 0.71
*/
function flush() {
$this->last_result = array();
$this->col_info = null;
$this->last_query = null;
}
/**
* Perform a MySQL database query, using current database connection.
*
* More information can be found on the codex page.
*
* @since 0.71
*
* @param string $query
* @return unknown
*/
function query ($query, $dblink = null, $sync = true) {
if ($dblink == null) {
$dblink = $this->dbh;
}
if ( ! $this->ready )
return false;
// filter the query, if filters are available
// NOTE: some queries are made before the plugins have been loaded, and thus cannot be filtered with this method
if ( function_exists('apply_filters') )
$query = apply_filters ('query', $query);
// initialise return
$return_val = 0;
$this->flush();
// Log how the function was called
$this->func_call = "\$db->query(\"$query, $dblink, $sync\")";
// Keep track of the last query for debug..
$this->last_query = $query;
// Perform the query via std mysql_query function..
if ( defined('SAVEQUERIES') && SAVEQUERIES )
$this->timer_start();
// check if execution is allowed
$execute = ( !preg_match("/^\\s*(alter|create|delete|drop|insert|replace|update) /i",$query) );
if (!$execute) {
$execute = (($this->synclevel == 'sync') || ($this->maindb == 0 ));
if (!$execute) {
$execute = (($this->synclevel != 'none') && ($this->syncing));
}
}
if ($execute) {
$this->result = @mysql_query($query, $dblink);
}
++$this->num_queries;
if ( defined('SAVEQUERIES') && SAVEQUERIES )
$this->queries[] = array( $query, $this->timer_stop(), $this->get_caller() );
// If there is an error then take note of it..
if ( $this->last_error = mysql_error($dblink) ) {
$this->print_error();
return false;
}
if ( preg_match("/^\\s*(alter|create|delete|drop|insert|merge|replace|truncate|update) /i", $query) ) {
$this->rows_affected = mysql_affected_rows($dblink);
// Take note of the insert_id
if ( preg_match("/^\\s*(insert|replace) /i",$query) ) {
$this->insert_id = mysql_insert_id($dblink);
}
// Return number of rows affected
$return_val = $this->rows_affected;
} else {
$i = 0;
while ($i < @mysql_num_fields($this->result)) {
$this->col_info[$i] = @mysql_fetch_field($this->result);
$i++;
}
$num_rows = 0;
while ( $row = @mysql_fetch_object($this->result) ) {
$this->last_result[$num_rows] = $row;
$num_rows++;
}
@mysql_free_result($this->result);
// Log number of rows the query returned
$this->num_rows = $num_rows;
// Return number of rows selected
$return_val = $this->num_rows;
}
// execute the synchronization
if (($this->synclevel != 'none') && ($sync == true) && ($this->syncdb > 0 ) && ($dblink == $this->dbh)) {
if (($this->synclevel == 'sync') || ($this->maindb == 0 )) {
if ( preg_match("/^\\s*(alter|create|delete|drop|insert|merge|replace|truncate|update) /i",$query) ) {
if (($this->sync_dbh != false) && ($this->insync)) {
$this->query($query, $this->sync_dbh, false);
} else {
$newentry = array();
$newentry['time'] = time();
$newentry['query'] = $query;
$newentry['affected'] = $return_val;
$newentry['executed'] = false;
$newentry['done'] = false;
$this->insert($this->translog, $newentry, $this->dbh, false);
}
}
}
}
return $return_val;
}
/**
* Insert an array of data into a table.
*
* @since 2.5.0
*
* @param string $table WARNING: not sanitized!
* @param array $data Should not already be SQL-escaped
* @return mixed Results of $this->query()
*/
function insert ($table, $data, $dblink = null, $sync = true) {
if (function_exists('add_magic_quotes')) {
$data = add_magic_quotes ($data);
} else {
$data = $this->add_magic_quotes($data);
}
$fields = array_keys($data);
return $this->query("INSERT INTO $table (`" . implode('`,`',$fields) . "`) VALUES ('".implode("','",$data)."')", $dblink, $sync);
}
/**
* Update a row in the table with an array of data.
*
* @since 2.5.0
*
* @param string $table WARNING: not sanitized!
* @param array $data Should not already be SQL-escaped
* @param array $where A named array of WHERE column => value relationships. Multiple member pairs will be joined with ANDs. WARNING: the column names are not currently sanitized!
* @return mixed Results of $this->query()
*/
function update ($table, $data, $where, $dblink = null, $sync = true){
if (function_exists('add_magic_quotes')) {
$data = add_magic_quotes ($data);
} else {
$data = $this->add_magic_quotes($data);
}
$bits = $wheres = array();
foreach ( (array) array_keys($data) as $k )
$bits[] = "`$k` = '$data[$k]'";
if ( is_array( $where ) )
foreach ( $where as $c => $v )
$wheres[] = "$c = '" . $this->escape( $v ) . "'";
else
return false;
return $this->query( "UPDATE $table SET " . implode( ', ', $bits ) . ' WHERE ' . implode( ' AND ', $wheres ), $dblink, $sync );
}
/**
* Retrieve one variable from the database.
*
* This combines the functionality of wpdb::get_row() and wpdb::get_col(),
* so both the column and row can be picked.
*
* It is possible to use this function without executing more queries. If
* you already made a query, you can set the $query to 'null' value and just
* retrieve either the column and row of the last query result.
*
* @since 0.71
*
* @param string $query Can be null as well, for caching
* @param int $x Column num to return
* @param int $y Row num to return
* @return mixed Database query results
*/
function get_var ($query=null, $x = 0 , $y = 0 , $dblink = null, $sync = true) {
$this->func_call = "\$db->get_var(\"$query\",$x,$y,$dblink,$sync)";
if ( $query )
$this->query($query, $dblink, $sync);
// Extract var out of cached results based x,y vals
if ( !empty( $this->last_result[$y] ) ) {
$values = array_values(get_object_vars($this->last_result[$y]));
}
// If there is a value return it else return null
return (isset($values[$x]) && $values[$x]!=='') ? $values[$x] : null;
}
/**
* Retrieve one row from the database.
*
* @since 0.71
*
* @param string $query SQL query
* @param string $output ARRAY_A | ARRAY_N | OBJECT
* @param int $y Row num to return
* @return mixed Database query results
*/
function get_row ($query = null, $output = OBJECT , $y = 0 , $dblink = null, $sync = true) {
$this->func_call = "\$db->get_row(\"$query\",$output,$y,$dblink,$sync)";
if ( $query )
$this->query($query, $dblink, $sync);
else
return null;
if ( !isset($this->last_result[$y]) )
return null;
if ( $output == OBJECT ) {
return $this->last_result[$y] ? $this->last_result[$y] : null;
} elseif ( $output == ARRAY_A ) {
return $this->last_result[$y] ? get_object_vars($this->last_result[$y]) : null;
} elseif ( $output == ARRAY_N ) {
return $this->last_result[$y] ? array_values(get_object_vars($this->last_result[$y])) : null;
} else {
$this->print_error(/*WP_I18N_DB_GETROW_ERROR*/' $db->get_row(string query, output type, int offset) -- Ausgabetyp muss sein: OBJECT, ARRAY_A oder ARRAY_N'/*/WP_I18N_DB_GETROW_ERROR*/);
}
}
/**
* Retrieve one column from the database.
*
* @since 0.71
*
* @param string $query Can be null as well, for caching
* @param int $x Col num to return. Starts from 0.
* @return array Column results
*/
function get_col ($query = null , $x = 0 , $dblink = null, $sync = true) {
if ( $query )
$this->query($query, $dblink, $sync);
$new_array = array();
// Extract the column values
for ( $i=0; $i < count($this->last_result); $i++ ) {
$new_array[$i] = $this->get_var(null, $x, $i);
}
return $new_array;
}
/**
* Retrieve an entire result set from the database.
*
* @since 0.71
*
* @param string|null $query Can also be null to pull from the cache
* @param string $output ARRAY_A | ARRAY_N | OBJECT_K | OBJECT
* @return mixed Database query results
*/
function get_results ($query = null, $output = OBJECT , $dblink = null, $sync = true) {
$this->func_call = "\$db->get_results(\"$query\", $output, $dblink, $sync)";
if ( $query )
$this->query($query, $dblink, $sync);
else
return null;
if ( $output == OBJECT ) {
// Return an integer-keyed array of row objects
return $this->last_result;
} elseif ( $output == OBJECT_K ) {
// Return an array of row objects with keys from column 1
// (Duplicates are discarded)
foreach ( $this->last_result as $row ) {
$key = array_shift( get_object_vars( $row ) );
if ( !isset( $new_array[ $key ] ) )
$new_array[ $key ] = $row;
}
return $new_array;
} elseif ( $output == ARRAY_A || $output == ARRAY_N ) {
// Return an integer-keyed array of...
if ( $this->last_result ) {
$i = 0;
foreach( (array) $this->last_result as $row ) {
if ( $output == ARRAY_N ) {
// ...integer-keyed row arrays
$new_array[$i] = array_values( get_object_vars( $row ) );
} else {
// ...column name-keyed row arrays
$new_array[$i] = get_object_vars( $row );
}
++$i;
}
return $new_array;
}
}
}
/**
* Retrieve column metadata from the last query.
*
* @since 0.71
*
* @param string $info_type one of name, table, def, max_length, not_null, primary_key, multiple_key, unique_key, numeric, blob, type, unsigned, zerofill
* @param int $col_offset 0: col name. 1: which table the col's in. 2: col's max length. 3: if the col is numeric. 4: col's type
* @return mixed Column Results
*/
function get_col_info ($info_type = 'name', $col_offset = -1 ) {
if ( $this->col_info ) {
if ( $col_offset == -1 ) {
$i = 0;
foreach( (array) $this->col_info as $col ) {
$new_array[$i] = $col->{$info_type};
$i++;
}
return $new_array;
} else {
return $this->col_info[$col_offset]->{$info_type};
}
}
}
/**
* Starts the timer, for debugging purposes.
*
* @since 1.5.0
*
* @return bool Always returns true
*/
function timer_start () {
$mtime = microtime();
$mtime = explode(' ', $mtime);
$this->time_start = $mtime[1 ] + $mtime[0 ];
return true;
}
/**
* Stops the debugging timer.
*
* @since 1.5.0
*
* @return int Total time spent on the query, in milliseconds
*/
function timer_stop () {
$mtime = microtime();
$mtime = explode(' ', $mtime);
$time_end = $mtime[1 ] + $mtime[0 ];
$time_total = $time_end - $this->time_start;
return $time_total;
}
/**
* Wraps fatal errors in a nice header and footer and dies.
*
* @since 1.5.0
*
* @param string $message
* @return unknown
*/
function bail ($message) {
if ( !$this->show_errors ) {
if ( class_exists('WP_Error') )
$this->error = new WP_Error ('500', $message);
else
$this->error = $message;
return false;
}
wp_die ($message);
}
/**
* Whether or not MySQL database is minimal required version.
*
* @since 2.5.0
* @uses $wp_version
*
* @return WP_Error
*/
function check_database_version ($dblink = null)
{
global $wp_version;
// Make sure the server has MySQL 4.0
if ( version_compare($this->db_version($dblink), '4.0.0', '<') )
return new WP_Error ('database_version',sprintf(__ ('<strong>ERROR</strong>: WordPress %s requires MySQL 4.0.0 or higher'), $wp_version));
}
/**
* Whether of not the database version supports collation.
*
* Called when WordPress is generating the table scheme.
*
* @since 2.5.0
*
* @return bool True if collation is supported, false if version does not
*/
function supports_collation ($dblink = null)
{
return $this->has_cap( 'collation', $dblink );
}
/**
* Generic function to determine if a database supports a particular feature
* @param string $db_cap the feature
* @param false|string|resource $dbh_or_table the databaese (the current database, the database housing the specified table, or the database of the mysql resource)
* @return bool
*/
function has_cap ( $db_cap, $dblink = null ) {
$version = $this->db_version($dblink);
switch ( strtolower( $db_cap ) ) :
case 'collation' : // @since 2.5.0
case 'group_concat' : // @since 2.7
case 'subqueries' : // @since 2.7
return version_compare($version, '4.1', '>=');
break;
endswitch;
return false;
}
/**
* Retrieve the name of the function that called wpdb.
*
* Requires PHP 4.3 and searches up the list of functions until it reaches
* the one that would most logically had called this method.
*
* @since 2.5.0
*
* @return string The name of the calling function
*/
function get_caller () {
// requires PHP 4.3+
if ( !is_callable('debug_backtrace') )
return '';
$bt = debug_backtrace();
$caller = array();
$bt = array_reverse( $bt );
foreach ( (array) $bt as $call ) {
if ( @$call['class'] == __CLASS__ )
continue;
$function = $call['function'];
if ( isset( $call['class'] ) )
$function = $call['class'] . "->$function";
$caller[] = $function;
}
$caller = join( ', ', $caller );
return $caller;
}
/**
* The database version number
* @return false|string false on failure, version number on success
*/
function db_version ($dblink = null) {
if ($dblink == null) {
$dblink = $this->dbh;
}
return preg_replace('/[^0-9.].*/', '', mysql_get_server_info( $dblink ));
}
/**
* Walks the array while sanitizing the contents.
* TAKEN FROM functions.php
*
* @uses $wpdb Used to sanitize values
* @since 0.71
*
* @param array $array Array to used to walk while sanitizing contents.
* @return array Sanitized $array.
*/
function add_magic_quotes ( $array ) {
foreach ( (array) $array as $k => $v ) {
if ( is_array( $v ) ) {
$array[$k] = $this->add_magic_quotes( $v );
} else {
$array[$k] = $this->escape( $v );
}
}
return $array;
}
}
if ( ! isset($wpdb) ) {
/**
* WordPress Database Object, if it isn't set already in wp-content/db.php
* @global object $wpdb Creates a new wpdb object based on wp-config.php Constants for the database
* @since 0.71
*/
$wpdb = new wpdb (DB_USER , DB_PASSWORD , DB_NAME , DB_HOST );
}
?> |