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Code source de PHP PEAR 1.4.5 |
1 <?php 2 // +----------------------------------------------------------------------+ 3 // | PHP Version 4 | 4 // +----------------------------------------------------------------------+ 5 // | Copyright (c) 1998-2004 Manuel Lemos, Tomas V.V.Cox, | 6 // | Stig. S. Bakken, Lukas Smith | 7 // | All rights reserved. | 8 // +----------------------------------------------------------------------+ 9 // | MDB is a merge of PEAR DB and Metabases that provides a unified DB | 10 // | API as well as database abstraction for PHP applications. | 11 // | This LICENSE is in the BSD license style. | 12 // | | 13 // | Redistribution and use in source and binary forms, with or without | 14 // | modification, are permitted provided that the following conditions | 15 // | are met: | 16 // | | 17 // | Redistributions of source code must retain the above copyright | 18 // | notice, this list of conditions and the following disclaimer. | 19 // | | 20 // | Redistributions in binary form must reproduce the above copyright | 21 // | notice, this list of conditions and the following disclaimer in the | 22 // | documentation and/or other materials provided with the distribution. | 23 // | | 24 // | Neither the name of Manuel Lemos, Tomas V.V.Cox, Stig. S. Bakken, | 25 // | Lukas Smith nor the names of his contributors may be used to endorse | 26 // | or promote products derived from this software without specific prior| 27 // | written permission. | 28 // | | 29 // | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | 30 // | "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | 31 // | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS | 32 // | FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE | 33 // | REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, | 34 // | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, | 35 // | BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS| 36 // | OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED | 37 // | AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | 38 // | LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY| 39 // | WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | 40 // | POSSIBILITY OF SUCH DAMAGE. | 41 // +----------------------------------------------------------------------+ 42 // | Author: Lukas Smith <smith@backendmedia.com> | 43 // +----------------------------------------------------------------------+ 44 // 45 // $Id: MDB.php,v 1.59.4.12 2004/02/28 10:37:54 quipo Exp $ 46 // 47 require_once ('PEAR.php'); 48 49 /** 50 * The method mapErrorCode in each MDB_dbtype implementation maps 51 * native error codes to one of these. 52 * 53 * If you add an error code here, make sure you also add a textual 54 * version of it in MDB::errorMessage(). 55 */ 56 57 define('MDB_OK', 1); 58 define('MDB_ERROR', -1); 59 define('MDB_ERROR_SYNTAX', -2); 60 define('MDB_ERROR_CONSTRAINT', -3); 61 define('MDB_ERROR_NOT_FOUND', -4); 62 define('MDB_ERROR_ALREADY_EXISTS', -5); 63 define('MDB_ERROR_UNSUPPORTED', -6); 64 define('MDB_ERROR_MISMATCH', -7); 65 define('MDB_ERROR_INVALID', -8); 66 define('MDB_ERROR_NOT_CAPABLE', -9); 67 define('MDB_ERROR_TRUNCATED', -10); 68 define('MDB_ERROR_INVALID_NUMBER', -11); 69 define('MDB_ERROR_INVALID_DATE', -12); 70 define('MDB_ERROR_DIVZERO', -13); 71 define('MDB_ERROR_NODBSELECTED', -14); 72 define('MDB_ERROR_CANNOT_CREATE', -15); 73 define('MDB_ERROR_CANNOT_DELETE', -16); 74 define('MDB_ERROR_CANNOT_DROP', -17); 75 define('MDB_ERROR_NOSUCHTABLE', -18); 76 define('MDB_ERROR_NOSUCHFIELD', -19); 77 define('MDB_ERROR_NEED_MORE_DATA', -20); 78 define('MDB_ERROR_NOT_LOCKED', -21); 79 define('MDB_ERROR_VALUE_COUNT_ON_ROW', -22); 80 define('MDB_ERROR_INVALID_DSN', -23); 81 define('MDB_ERROR_CONNECT_FAILED', -24); 82 define('MDB_ERROR_EXTENSION_NOT_FOUND',-25); 83 define('MDB_ERROR_NOSUCHDB', -26); 84 define('MDB_ERROR_ACCESS_VIOLATION', -27); 85 define('MDB_ERROR_CANNOT_REPLACE', -28); 86 define('MDB_ERROR_CONSTRAINT_NOT_NULL',-29); 87 define('MDB_ERROR_DEADLOCK', -30); 88 define('MDB_ERROR_CANNOT_ALTER', -31); 89 define('MDB_ERROR_MANAGER', -32); 90 define('MDB_ERROR_MANAGER_PARSE', -33); 91 define('MDB_ERROR_LOADMODULE', -34); 92 define('MDB_ERROR_INSUFFICIENT_DATA', -35); 93 /** 94 * This is a special constant that tells DB the user hasn't specified 95 * any particular get mode, so the default should be used. 96 */ 97 98 define('MDB_FETCHMODE_DEFAULT', 0); 99 100 /** 101 * Column data indexed by numbers, ordered from 0 and up 102 */ 103 104 define('MDB_FETCHMODE_ORDERED', 1); 105 106 /** 107 * Column data indexed by column names 108 */ 109 110 define('MDB_FETCHMODE_ASSOC', 2); 111 112 /** 113 * For multi-dimensional results: normally the first level of arrays 114 * is the row number, and the second level indexed by column number or name. 115 * MDB_FETCHMODE_FLIPPED switches this order, so the first level of arrays 116 * is the column name, and the second level the row number. 117 */ 118 119 define('MDB_FETCHMODE_FLIPPED', 4); 120 121 /** 122 * These are constants for the tableInfo-function 123 * they are bitwised or'ed. so if there are more constants to be defined 124 * in the future, adjust MDB_TABLEINFO_FULL accordingly 125 */ 126 127 define('MDB_TABLEINFO_ORDER', 1); 128 define('MDB_TABLEINFO_ORDERTABLE', 2); 129 define('MDB_TABLEINFO_FULL', 3); 130 131 /** 132 * These are constants for each of the supported datatypes 133 */ 134 135 define('MDB_TYPE_TEXT' , 0); 136 define('MDB_TYPE_BOOLEAN' , 1); 137 define('MDB_TYPE_INTEGER' , 2); 138 define('MDB_TYPE_DECIMAL' , 3); 139 define('MDB_TYPE_FLOAT' , 4); 140 define('MDB_TYPE_DATE' , 5); 141 define('MDB_TYPE_TIME' , 6); 142 define('MDB_TYPE_TIMESTAMP' , 7); 143 define('MDB_TYPE_CLOB' , 8); 144 define('MDB_TYPE_BLOB' , 9); 145 146 /** 147 * These are global variables that are used to track the various class instances 148 */ 149 150 $GLOBALS['_MDB_lobs'] = array(); 151 $GLOBALS['_MDB_databases'] = array(); 152 153 /** 154 * The main 'MDB' class is simply a container class with some static 155 * methods for creating DB objects as well as some utility functions 156 * common to all parts of DB. 157 * 158 * The object model of DB is as follows (indentation means inheritance): 159 * 160 * MDB The main DB class. This is simply a utility class 161 * with some 'static' methods for creating MDB objects as 162 * well as common utility functions for other MDB classes. 163 * 164 * MDB_common The base for each DB implementation. Provides default 165 * | implementations (in OO lingo virtual methods) for 166 * | the actual DB implementations as well as a bunch of 167 * | query utility functions. 168 * | 169 * +-MDB_mysql The DB implementation for MySQL. Inherits MDB_Common. 170 * When calling MDB::factory or MDB::connect for MySQL 171 * connections, the object returned is an instance of this 172 * class. 173 * +-MDB_pgsql The DB implementation for PostGreSQL. Inherits MDB_Common. 174 * When calling MDB::factory or MDB::connect for PostGreSQL 175 * connections, the object returned is an instance of this 176 * class. 177 * 178 * MDB_Date This class provides several method to convert from and to 179 * MDB timestamps. 180 * 181 * MDB_Manager This class handles the xml schema management. 182 * 183 * @package MDB 184 * @version $Id: MDB.php,v 1.59.4.12 2004/02/28 10:37:54 quipo Exp $ 185 * @category Database 186 * @author Lukas Smith <smith@backendmedia.com> 187 */ 188 class MDB 189 { 190 // }}} 191 // {{{ setOptions() 192 193 /** 194 * set option array in an exiting database object 195 * 196 * @param object $db MDB object 197 * @param mixed $options An associative array of option names and 198 * their values. 199 * @access public 200 */ 201 function setOptions(&$db, $options) 202 { 203 if(is_array($options)) { 204 foreach($options as $option => $value) { 205 $test = $db->setOption($option, $value); 206 if(MDB::isError($test)) { 207 return $test; 208 } 209 } 210 } else { 211 $db->setOption('persistent', $options); 212 } 213 $include_lob = $db->getOption('includelob'); 214 if(!MDB::isError($include_lob) && $include_lob) { 215 $db->loadLob('load at start'); 216 } 217 $includemanager = $db->getOption('includemanager'); 218 if(!MDB::isError($includemanager) && $includemanager) { 219 $db->loadManager('load at start'); 220 } 221 $debug = $db->getOption('debug'); 222 if(!MDB::isError($debug) && $debug) { 223 $db->captureDebugOutput(TRUE); 224 } 225 } 226 227 // }}} 228 // {{{ factory() 229 230 /** 231 * Create a new DB connection object for the specified database 232 * type 233 * IMPORTANT: In order for MDB to work properly it is necessary that 234 * you make sure that you work with a reference of the original 235 * object instead of a copy (this is a PHP4 quirk). 236 * 237 * For example: 238 * $mdb =& MDB::factory($dsn); 239 * ^^ 240 * And not: 241 * $mdb = MDB::factory($dsn); 242 * ^^ 243 * 244 * @param string $type database type, for example 'mysql' 245 * @return mixed a newly created MDB connection object, or a MDB 246 * error object on error 247 * @access public 248 */ 249 function &factory($type) 250 { 251 $class_name = "MDB_$type"; 252 253 @include_once("MDB/$type}.php"); 254 255 @$db =& new $class_name; 256 257 return($db); 258 } 259 260 // }}} 261 // {{{ connect() 262 263 /** 264 * Create a new MDB connection object and connect to the specified 265 * database 266 * 267 * IMPORTANT: In order for MDB to work properly it is necessary that 268 * you make sure that you work with a reference of the original 269 * object instead of a copy (this is a PHP4 quirk). 270 * 271 * For example: 272 * $mdb =& MDB::connect($dsn); 273 * ^^ 274 * And not: 275 * $mdb = MDB::connect($dsn); 276 * ^^ 277 * 278 * @param mixed $dsn 'data source name', see the MDB::parseDSN 279 * method for a description of the dsn format. 280 * Can also be specified as an array of the 281 * format returned by MDB::parseDSN. 282 * @param mixed $options An associative array of option names and 283 * their values. 284 * @return mixed a newly created MDB connection object, or a MDB 285 * error object on error 286 * @access public 287 * @see MDB::parseDSN 288 */ 289 function &connect($dsn, $options = FALSE) 290 { 291 $dsninfo = MDB::parseDSN($dsn); 292 if(isset($dsninfo['phptype'])) { 293 $type = $dsninfo['phptype']; 294 $class_name = 'MDB_'.$type; 295 $include = 'MDB/'.$type.'.php'; 296 } else { 297 return(PEAR::raiseError(NULL, MDB_ERROR_NOT_FOUND, 298 NULL, NULL, 'no RDBMS driver specified', 299 'MDB_Error', TRUE)); 300 } 301 302 if(is_array($options) 303 && isset($options['debug']) 304 && $options['debug'] >= 2 305 ) { 306 // expose php errors with sufficient debug level 307 @include_once($include); 308 } else { 309 include_once($include); 310 } 311 312 if(!class_exists($class_name)) { 313 $error = PEAR::raiseError(NULL, MDB_ERROR_NOT_FOUND, NULL, NULL, 314 'Unable to include the '.$include.' file', 'MDB_Error', TRUE); 315 return($error); 316 } 317 318 @$db =& new $class_name(); 319 320 $db->setDSN($dsninfo); 321 322 MDB::setOptions($db, $options); 323 324 if(isset($dsninfo['database'])) { 325 $err = $db->connect(); 326 if (MDB::isError($err)) { 327 $dsn = $db->getDSN(); 328 $err->addUserInfo($dsn); 329 return($err); 330 } 331 } 332 return($db); 333 } 334 335 // }}} 336 // {{{ connect() 337 338 /** 339 * Returns a MDB connection with the requested DSN. 340 * A newnew MDB connection object is only created if no object with the 341 * reuested DSN exists yet. 342 * 343 * IMPORTANT: In order for MDB to work properly it is necessary that 344 * you make sure that you work with a reference of the original 345 * object instead of a copy (this is a PHP4 quirk). 346 * 347 * For example: 348 * $mdb =& MDB::sngleton($dsn); 349 * ^^ 350 * And not: 351 * $mdb = MDB::singleton($dsn); 352 * ^^ 353 * 354 * @param mixed $dsn 'data source name', see the MDB::parseDSN 355 * method for a description of the dsn format. 356 * Can also be specified as an array of the 357 * format returned by MDB::parseDSN. 358 * @param mixed $options An associative array of option names and 359 * their values. 360 * @return mixed a newly created MDB connection object, or a MDB 361 * error object on error 362 * @access public 363 * @see MDB::parseDSN 364 */ 365 function &singleton($dsn = NULL, $options = FALSE) 366 { 367 if ($dsn) { 368 $dsninfo = MDB::parseDSN($dsn); 369 $dsninfo_default = array( 370 'phptype' => NULL, 371 'username' => NULL, 372 'password' => NULL, 373 'hostspec' => NULL, 374 'database' => NULL, 375 ); 376 $dsninfo = array_merge($dsninfo_default, $dsninfo); 377 $keys = array_keys($GLOBALS['_MDB_databases']); 378 for ($i=0, $j=count($keys); $i<$j; ++$i) { 379 $tmp_dsn = $GLOBALS['_MDB_databases'][$keys[$i]]->getDSN('array'); 380 if ($dsninfo['phptype'] == $tmp_dsn['phptype'] 381 && $dsninfo['username'] == $tmp_dsn['username'] 382 && $dsninfo['password'] == $tmp_dsn['password'] 383 && $dsninfo['hostspec'] == $tmp_dsn['hostspec'] 384 && $dsninfo['database'] == $tmp_dsn['database']) 385 { 386 MDB::setOptions($GLOBALS['_MDB_databases'][$keys[$i]], $options); 387 return $GLOBALS['_MDB_databases'][$keys[$i]]; 388 } 389 } 390 } else { 391 if (is_array($GLOBALS['_MDB_databases']) 392 && reset($GLOBALS['_MDB_databases']) 393 ) { 394 $db =& $GLOBALS['_MDB_databases'][key($GLOBALS['_MDB_databases'])]; 395 return $db; 396 } 397 } 398 $db =& MDB::connect($dsn, $options); 399 return $db; 400 } 401 402 // }}} 403 // {{{ loadFile() 404 405 /** 406 * load a file (like 'Date.php' or 'Manager.php') 407 * 408 * @return $file name of the file to be included from the MDB dir without 409 * the '.php' extension (like 'Date' or 'Manager') 410 * @access public 411 */ 412 function loadFile($file) 413 { 414 @include_once('MDB/'.$file.'.php'); 415 } 416 417 // }}} 418 // {{{ apiVersion() 419 420 /** 421 * Return the MDB API version 422 * 423 * @return int the MDB API version number 424 * @access public 425 */ 426 function apiVersion() 427 { 428 return(1); 429 } 430 431 // }}} 432 // {{{ isError() 433 434 /** 435 * Tell whether a result code from a MDB method is an error 436 * 437 * @param int $value result code 438 * @return boolean whether $value is an MDB_Error 439 * @access public 440 */ 441 function isError($value) 442 { 443 return is_a($value, 'MDB_Error'); 444 } 445 446 // }}} 447 // {{{ isConnection() 448 /** 449 * Tell whether a value is a MDB connection 450 * 451 * @param mixed $value value to test 452 * 453 * @return bool whether $value is a MDB connection 454 * 455 * @access public 456 */ 457 function isConnection($value) 458 { 459 return is_a($value, 'MDB_Common'); 460 } 461 462 // }}} 463 // {{{ isManip() 464 465 /** 466 * Tell whether a query is a data manipulation query (insert, 467 * update or delete) or a data definition query (create, drop, 468 * alter, grant, revoke). 469 * 470 * @param string $query the query 471 * @return boolean whether $query is a data manipulation query 472 * @access public 473 */ 474 function isManip($query) 475 { 476 $manips = 'INSERT|UPDATE|DELETE|REPLACE|CREATE|DROP| 477 ALTER|GRANT|REVOKE|LOCK|UNLOCK|ROLLBACK|COMMIT'; 478 if (preg_match('/^\s*"?('.$manips.')\s+/i', $query)) { 479 return(TRUE); 480 } 481 return(FALSE); 482 } 483 484 // }}} 485 // {{{ errorMessage() 486 487 /** 488 * Return a textual error message for a MDB error code 489 * 490 * @param int $value error code 491 * @return string error message, or false if the error code was 492 * not recognized 493 * @access public 494 */ 495 function errorMessage($value) 496 { 497 static $errorMessages; 498 if (!isset($errorMessages)) { 499 $errorMessages = array( 500 MDB_ERROR => 'unknown error', 501 MDB_ERROR_ALREADY_EXISTS => 'already exists', 502 MDB_ERROR_CANNOT_CREATE => 'can not create', 503 MDB_ERROR_CANNOT_ALTER => 'can not alter', 504 MDB_ERROR_CANNOT_REPLACE => 'can not replace', 505 MDB_ERROR_CANNOT_DELETE => 'can not delete', 506 MDB_ERROR_CANNOT_DROP => 'can not drop', 507 MDB_ERROR_CONSTRAINT => 'constraint violation', 508 MDB_ERROR_CONSTRAINT_NOT_NULL=> 'null value violates not-null constraint', 509 MDB_ERROR_DIVZERO => 'division by zero', 510 MDB_ERROR_INVALID => 'invalid', 511 MDB_ERROR_INVALID_DATE => 'invalid date or time', 512 MDB_ERROR_INVALID_NUMBER => 'invalid number', 513 MDB_ERROR_MISMATCH => 'mismatch', 514 MDB_ERROR_NODBSELECTED => 'no database selected', 515 MDB_ERROR_NOSUCHFIELD => 'no such field', 516 MDB_ERROR_NOSUCHTABLE => 'no such table', 517 MDB_ERROR_NOT_CAPABLE => 'MDB backend not capable', 518 MDB_ERROR_NOT_FOUND => 'not found', 519 MDB_ERROR_NOT_LOCKED => 'not locked', 520 MDB_ERROR_SYNTAX => 'syntax error', 521 MDB_ERROR_UNSUPPORTED => 'not supported', 522 MDB_ERROR_VALUE_COUNT_ON_ROW => 'value count on row', 523 MDB_ERROR_INVALID_DSN => 'invalid DSN', 524 MDB_ERROR_CONNECT_FAILED => 'connect failed', 525 MDB_OK => 'no error', 526 MDB_ERROR_NEED_MORE_DATA => 'insufficient data supplied', 527 MDB_ERROR_EXTENSION_NOT_FOUND=> 'extension not found', 528 MDB_ERROR_NOSUCHDB => 'no such database', 529 MDB_ERROR_ACCESS_VIOLATION => 'insufficient permissions', 530 MDB_ERROR_MANAGER => 'MDB_manager error', 531 MDB_ERROR_MANAGER_PARSE => 'MDB_manager schema parse error', 532 MDB_ERROR_LOADMODULE => 'Error while including on demand module', 533 MDB_ERROR_TRUNCATED => 'truncated', 534 MDB_ERROR_DEADLOCK => 'deadlock detected', 535 ); 536 } 537 538 if (MDB::isError($value)) { 539 $value = $value->getCode(); 540 } 541 542 return(isset($errorMessages[$value]) ? 543 $errorMessages[$value] : $errorMessages[MDB_ERROR]); 544 } 545 546 // }}} 547 // {{{ parseDSN() 548 549 /** 550 * Parse a data source name 551 * 552 * A array with the following keys will be returned: 553 * phptype: Database backend used in PHP (mysql, odbc etc.) 554 * dbsyntax: Database used with regards to SQL syntax etc. 555 * protocol: Communication protocol to use (tcp, unix etc.) 556 * hostspec: Host specification (hostname[:port]) 557 * database: Database to use on the DBMS server 558 * username: User name for login 559 * password: Password for login 560 * 561 * The format of the supplied DSN is in its fullest form: 562 * 563 * phptype(dbsyntax)://username:password@protocol+hostspec/database 564 * 565 * Most variations are allowed: 566 * 567 * phptype://username:password@protocol+hostspec:110//usr/db_file.db 568 * phptype://username:password@hostspec/database_name 569 * phptype://username:password@hostspec 570 * phptype://username@hostspec 571 * phptype://hostspec/database 572 * phptype://hostspec 573 * phptype(dbsyntax) 574 * phptype 575 * 576 * @param string $dsn Data Source Name to be parsed 577 * @return array an associative array 578 * @access public 579 * @author Tomas V.V.Cox <cox@idecnet.com> 580 */ 581 function parseDSN($dsn) 582 { 583 if (is_array($dsn)) { 584 return($dsn); 585 } 586 587 $parsed = array( 588 'phptype' => FALSE, 589 'dbsyntax' => FALSE, 590 'username' => FALSE, 591 'password' => FALSE, 592 'protocol' => FALSE, 593 'hostspec' => FALSE, 594 'port' => FALSE, 595 'socket' => FALSE, 596 'database' => FALSE 597 ); 598 599 // Find phptype and dbsyntax 600 if (($pos = strpos($dsn, '://')) !== FALSE) { 601 $str = substr($dsn, 0, $pos); 602 $dsn = substr($dsn, $pos + 3); 603 } else { 604 $str = $dsn; 605 $dsn = NULL; 606 } 607 608 // Get phptype and dbsyntax 609 // $str => phptype(dbsyntax) 610 if (preg_match('|^(.+?)\((.*?)\)$|', $str, $arr)) { 611 $parsed['phptype'] = $arr[1]; 612 $parsed['dbsyntax'] = (empty($arr[2])) ? $arr[1] : $arr[2]; 613 } else { 614 $parsed['phptype'] = $str; 615 $parsed['dbsyntax'] = $str; 616 } 617 618 if (empty($dsn)) { 619 return($parsed); 620 } 621 622 // Get (if found): username and password 623 // $dsn => username:password@protocol+hostspec/database 624 if (($at = strrpos($dsn,'@')) !== FALSE) { 625 $str = substr($dsn, 0, $at); 626 $dsn = substr($dsn, $at + 1); 627 if (($pos = strpos($str, ':')) !== FALSE) { 628 $parsed['username'] = rawurldecode(substr($str, 0, $pos)); 629 $parsed['password'] = rawurldecode(substr($str, $pos + 1)); 630 } else { 631 $parsed['username'] = rawurldecode($str); 632 } 633 } 634 635 // Find protocol and hostspec 636 637 // $dsn => proto(proto_opts)/database 638 if (preg_match('|^([^(]+)\((.*?)\)/?(.*?)$|', $dsn, $match)) { 639 $proto = $match[1]; 640 $proto_opts = (!empty($match[2])) ? $match[2] : FALSE; 641 $dsn = $match[3]; 642 643 // $dsn => protocol+hostspec/database (old format) 644 } else { 645 if (strpos($dsn, '+') !== FALSE) { 646 list($proto, $dsn) = explode('+', $dsn, 2); 647 } 648 if (strpos($dsn, '/') !== FALSE) { 649 list($proto_opts, $dsn) = explode('/', $dsn, 2); 650 } else { 651 $proto_opts = $dsn; 652 $dsn = NULL; 653 } 654 } 655 656 // process the different protocol options 657 $parsed['protocol'] = (!empty($proto)) ? $proto : 'tcp'; 658 $proto_opts = rawurldecode($proto_opts); 659 if ($parsed['protocol'] == 'tcp') { 660 if (strpos($proto_opts, ':') !== FALSE) { 661 list($parsed['hostspec'], $parsed['port']) = 662 explode(':', $proto_opts); 663 } else { 664 $parsed['hostspec'] = $proto_opts; 665 } 666 } elseif ($parsed['protocol'] == 'unix') { 667 $parsed['socket'] = $proto_opts; 668 } 669 670 // Get dabase if any 671 // $dsn => database 672 if (!empty($dsn)) { 673 // /database 674 if (($pos = strpos($dsn, '?')) === FALSE) { 675 $parsed['database'] = $dsn; 676 // /database?param1=value1¶m2=value2 677 } else { 678 $parsed['database'] = substr($dsn, 0, $pos); 679 $dsn = substr($dsn, $pos + 1); 680 if (strpos($dsn, '&') !== FALSE) { 681 $opts = explode('&', $dsn); 682 } else { // database?param1=value1 683 $opts = array($dsn); 684 } 685 foreach ($opts as $opt) { 686 list($key, $value) = explode('=', $opt); 687 if (!isset($parsed[$key])) { // don't allow params overwrite 688 $parsed[$key] = rawurldecode($value); 689 } 690 } 691 } 692 } 693 694 return($parsed); 695 } 696 } 697 698 /** 699 * MDB_Error implements a class for reporting portable database error 700 * messages. 701 * 702 * @package MDB 703 * @category Database 704 * @author Stig Bakken <ssb@fast.no> 705 */ 706 class MDB_Error extends PEAR_Error 707 { 708 709 // }}} 710 // {{{ constructor 711 712 /** 713 * MDB_Error constructor. 714 * 715 * @param mixed $code MDB error code, or string with error message. 716 * @param integer $mode what 'error mode' to operate in 717 * @param integer $level what error level to use for 718 * $mode & PEAR_ERROR_TRIGGER 719 * @param smixed $debuginfo additional debug info, such as the last query 720 */ 721 function MDB_Error($code = MDB_ERROR, $mode = PEAR_ERROR_RETURN, 722 $level = E_USER_NOTICE, $debuginfo = NULL) 723 { 724 if (is_int($code)) { 725 $this->PEAR_Error('MDB Error: '.MDB::errorMessage($code), $code, 726 $mode, $level, $debuginfo); 727 } else { 728 $this->PEAR_Error("MDB Error: $code", MDB_ERROR, $mode, $level, 729 $debuginfo); 730 } 731 } 732 } 733 ?>
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