本文实例讲述了php操作MongoDB类的方法。分享给大家供大家参考。具体如下：
1. MyMongo.php文件：
?
|
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 |
/** * 仿写CI的MongoDB * @author sparkHuang 2011-11-03 * */ class MyMongo { private $mongo_config = "mongo_config.php"; private $connection; private $db; private $mongo_connect_string; private $host; private $port; private $user; private $pass; private $dbname; private $persist; private $persist_key; private $selects = array(); private $wheres = array(); private $sorts = array(); private $limit = 999999; private $offset = 0; public function __construct() { if ( ! class_exists('Mongo')) { $this->log_error("The MongoDB PECL extentiosn has not been installed or enabled."); exit; }
$this->connection_string(); $this->connect(); } /** * 更改数据库 * */ public function switch_db($database = '') { if (empty($database)) { $this->log_error("To switch MongoDB databases, a new database name must be specified"); exit; } $this->dbname = $database; try { $this->db = $this->connection->{$this->dbname}; return true; } catch(Exception $e) { $this->log_error("Unable to switch Mongo Databases: {$e->getMessage()}"); exit; } } /** * 设置select字段 * */ public function select($includs = array(), $excludes = array()) { if ( ! is_array($includs)) { $includs = (array)$includs; }
if ( ! is_array($excludes)) { $excludes = (array)$excludes; }
if ( ! empty($includs)) { foreach ($includs as $col) { $this->selects[$col] = 1; } } else { foreach ($excludes as $col) { $this->selects[$col] = 0; } }
return($this); } /** * where条件查询判断 * * @usage = $this->mongo_db->where(array('foo' => 'bar'))->get('foobar'); * */ public function where($wheres = array()) { if ( ! is_array($wheres)) { $wheres = (array)$wheres; }
if ( ! empty($wheres)) { foreach($wheres as $wh => $val) { $this->wheres[$wh] = $val; } }
return($this); } /** * where ... in .. 条件查询判断 * * @usage = $this->mongo_db->where_in('foo', array('bar', 'zoo'))->get('foobar'); * */ public function where_in($field = '', $in = array()) { $this->where_init($field); $this->wheres[$field]['$in'] = $in; return($this); } /** * where ... not in .. 条件查询判断 * * @usage = $this->mongo_db->where_not_in('foo', array('bar', 'zoo'))->get('foobar'); * */ public function where_not_in($field = '', $in = array()) { $this->where_init($field); $this->wheres[$field]['$nin'] = $in; return($this); } /** * where ... $field > $x .. 条件查询判断 * * @usage = $this->mongo_db->where_gt('foo', 20)->get('foobar'); * */ public function where_gt($field = '', $x) { $this->where_init($field); $this->wheres[$field]['$gt'] = $x; return($this); } /** * where ... $field >= $x .. 条件查询判断 * * @usage = $this->mongo_db->where_gte('foo', 20)->get('foobar'); * */ public function where_gte($field = '', $x) { $this->where_init($field); $this->wheres[$field]['$gte'] = $x; return($this); } /** * where ... $field * * @usage = $this->mongo_db->where_lt('foo', 20)->get('foobar'); * */ public function where_lt($field = '', $x) { $this->where_init($field); $this->wheres[$field]['$lt'] = $x; return($this); } /** * where ... $field * * @usage = $this->mongo_db->where_lte('foo', 20)->get('foobar'); * */ public function where_lte($field = '', $x) { $this->where_init($field); $this->wheres[$field]['$lte'] = $x; return($this); } /** * where ... $field >= $x AND $field * * @usage = $this->mongo_db->where_between('foo', 20, 30)->get('foobar'); * */ public function where_between($field = '', $x, $y) { $this->where_init($field); $this->wheres[$field]['$gte'] = $x; $this->wheres[$field]['$lte'] = $y; return($this); } /** * where ... $field > $x AND $field * * @usage = $this->mongo_db->where_between_ne('foo', 20, 30)->get('foobar'); * */ public function where_between_ne($field = '', $x, $y) { $this->where_init($field); $this->wheres[$field]['$gt'] = $x; $this->wheres[$field]['$lt'] = $y; return($this); } /** * where ... $field $x .. 条件查询判断 * * @usage = $this->mongo_db->where_ne('foo', 20)->get('foobar'); * */ public function where_ne($field = '', $x) { $this->where_init($field); $this->wheres[$field]['$ne'] = $x; return($this); } /** * where ... or .. 条件查询判断 * * @usage = $this->mongo_db->where_or('foo', array('foo', 'bar'))->get('foobar'); * */ public function where_or($field = '', $values) { $this->where_init($field); $this->wheres[$field]['$or'] = $values; return($this); } /** * where ... and .. 条件查询判断 * * @usage = $this->mongo_db->where_and( array ( 'foo' => 1, 'b' => 'someexample' ); */ public function where_and( $elements_values = array() ) { foreach ( $elements_values as $element => $val ) { $this->wheres[$element] = $val; } return($this); } /** * where $field % $num = $result * * @usage = $this->mongo_db->where_mod( 'foo', 10, 1 ); */ public function where_mod( $field, $num, $result ) { $this->where_init($field); $this->wheres[$field]['$mod'] = array($num, $result); return($this); } /** * where size * * Get the documents where the size of a field is in a given $size int * * @usage : $this->mongo_db->where_size('foo', 1)->get('foobar'); */ public function where_size($field = "", $size = "") { $this->where_init($field); $this->wheres[$field]['$size'] = $size; return ($this); } /** * like条件查询(PHP中定义MongoRegex类实现) * * @usage : $this->mongo_db->like('foo', 'bar', 'im', false, false)->get(); */ public function like($field = "", $value = "", $flags = "i", $enable_start_wildcard = true, $enable_end_wildcard = true) { $field = (string)$field; $this->where_init($field); $value = (string)$value; $value = quotmeta($value);
if (true !== $enable_start_wildcard) { $value = "^".$value; }
if (true !== $enable_end_wildcard) { $value .= "$"; }
$regex = "/$value/$flags"; $this->wheres[$field] = new MongoRegex($regex); return($this); } /** * order排序( 1 => ASC, -1 => DESC) * * @usage: $this->mongo_db->get_where('foo', array('name' => 'tom'))->order_by(array("age" => 1)); */ public function order_by($fields = array()) { foreach($fields as $col => $val) { if ($val == -1 || $val == false || strtolower($val) == "desc") { $this->sorts[$col] = -1; } else { $this->sorts[$col] = 1; } } return($this); } /** * limit * * @usage: $this->mongo_db->get_where('foo', array('name' => 'tom'))->limit(10); */ public function limit($x = 999999) { if ($x !== NULL && is_numeric($x) && $x >= 1) { $this->limit = (int)$x; } return($this); } /** * offset * * @usage: $this->mongo_db->get_where('foo', array('name' => 'tom'))->offset(10); */ public function offset($x = 0) { if($x !== NULL && is_numeric($x) && $x >= 1) { $this->offset = (int) $x; } return($this); } /** * get_where * * @usage: $this->mongo_db->get_where('foo', array('bar' => 'something')); */ public function get_where($collection = "", $where = array(), $limit = 999999) { return($this->where($where)->limit($limit)->get($collection)); } /** * get * * @usage: $this->mongo_db->where(array('name' => 'tom'))->get('foo'); */ public function get($collection) { if (empty($collection)) { $this->log_error("In order to retreive documents from MongoDB, a collection name must be passed"); exit; } $results = array(); $results = $this->db->{$collection}->find($this->wheres, $this->selects)->limit((int)$this->limit)->skip((int)$this->offset)->sort($this->sorts); $returns = array(); foreach($results as $result) { $returns[] = $result; } $this->clear(); return($returns); } /** * count * * @usage: $this->db->get_where('foo', array('name' => 'tom'))->count('foo'); */ public function count($collection) { if (empty($collection)) { $this->log_error("In order to retreive documents from MongoDB, a collection name must be passed"); exit; } $count = $this->db->{$collection}->find($this->wheres)->limit((int)$this->limit)->skip((int)$this->offset)->count(); $this->clear(); return($count); } /** * insert * * @usage: $this->mongo_db->insert('foo', array('name' => 'tom')); */ public function insert($collection = "", $data = array()) { if (empty($collection)) { $this->log_error("No Mongo collection selected to delete from"); exit; } if (count($data) == 0 || ! is_array($data)) { $this->log_error("Nothing to insert into Mongo collection or insert is not an array"); exit; } try { $this->db->{$collection}->insert($data, array('fsync' => true)); if (isset($data['_id'])) { return($data['_id']); } else { return(false); } } catch(MongoCursorException $e) { $this->log_error("Insert of data into MongoDB failed: {$e->getMessage()}"); exit; } } /** * update : 利用MongoDB的 $set 实现 * * @usage : $this->mongo_db->where(array('name' => 'tom'))->update('foo', array('age' => 24)) */ public function update($collection = "", $data = array()) { if (empty($collection)) { $this->log_error("No Mongo collection selected to delete from"); exit; } if (count($data) == 0 || ! is_array($data)) { $this->log_error("Nothing to update in Mongo collection or update is not an array"); exit; } try { $this->db->{$collection}->update($this->wheres, array('$set' => $data), array('fsync' => true, 'multiple' => false)); //注意: multiple为false return(true); } catch(MongoCursorException $e) { $this->log_error("Update of data into MongoDB failed: {$e->getMessage()}"); exit; } } /** * update_all : 利用MongoDB的 $set 实现 * * @usage : $this->mongo_db->where(array('name' => 'tom'))->update_all('foo', array('age' => 24)); */ public function update_all($collection = "", $data = array()) { if (empty($collection)) { $this->log_error("No Mongo collection selected to delete from"); exit; } if (count($data) == 0 || ! is_array($data)) { $this->log_error("Nothing to update in Mongo collection or update is not an array"); exit; } try { $this->db->{$collection}->update($this->wheres, array('$set' => $data), array('fsync' => true, 'multiple' => true)); //注意: multiple为true return(true); } catch(MongoCursorException $e) { $this->log_error("Update of data into MongoDB failed: {$e->getMessage()}"); exit; } } /** * delete * * @usage : $this->mongo_db->where(array('name' => 'tom'))->delete('foo'); */ public function delete($collection = "") { if (empty($collection)) { $this->log_error("No Mongo collection selected to delete from"); exit; } try { $this->db->{$collection}->remove($this->wheres, array('fsync' => true, 'justOne' => true)); //注意justOne为true; } catch(MongoCursorException $e) { $this->log_error("Delete of data into MongoDB failed: {$e->getMessage()}"); exit; } } /** * delete_all * * @usage : $this->mongo_db->where(array('name' => 'tom'))->delete_all('foo'); */ public function delete_all($collection = "") { if (empty($collection)) { $this->log_error("No Mongo collection selected to delete from"); exit; } try { $this->db->{$collection}->remove($this->wheres, array('fsync' => true, 'justOne' => false)); //注意justOne为false; } catch(MongoCursorException $e) { $this->log_error("Delete of data into MongoDB failed: {$e->getMessage()}"); exit; } } /** * add_index * * @usage : $this->mongo_db->add_index('foo', array('first_name' => 'ASC', 'last_name' => -1), array('unique' => true))); */ public function add_index($collection, $keys = array(), $options = array()) { if (empty($collection)) { $this->log_error("No Mongo collection specified to add index to"); exit; } if (empty($keys) || ! is_array($keys)) { $this->log_error("Index could not be created to MongoDB Collection because no keys were specified"); exit; } foreach($keys as $col => $val) { if ($val == -1 || $val == false || strtolower($val) == 'desc') { $keys[$col] = -1; } else { $keys[$col] = 1; } } //在此没有对$options数组的有效性进行验证 if (true == $this->db->{$collection}->ensureIndex($keys, $options)) { $this->clear(); return($this); } else { $this->log_error("An error occured when trying to add an index to MongoDB Collection"); exit; } } /** * remove_index * * @usage : $this->mongo_db->remove_index('foo', array('first_name' => 'ASC', 'last_name' => -1)) */ public function remove_index($collection = "", $keys = array()) { if (empty($collection)) { $this->log_error("No Mongo collection specified to add index to"); exit; } if (empty($keys) || ! is_array($keys)) { $this->log_error("Index could not be created to MongoDB Collection because no keys were specified"); exit; } if ($this->db->{$collection}->deleteIndex($keys)) { $this->clear(); return($this); } else { $this->log_error("An error occured when trying to add an index to MongoDB Collection"); exit; } } /** * remove_all_index * * @usage : $this->mongo_db->remove_all_index('foo', array('first_name' => 'ASC', 'last_name' => -1)) */ public function remove_all_index($collection = "", $keys = array()) { if (empty($collection)) { $this->log_error("No Mongo collection specified to add index to"); exit; } if (empty($keys) || ! is_array($keys)) { $this->log_error("Index could not be created to MongoDB Collection because no keys were specified"); exit; } if ($this->db->{$collection}->deleteIndexes($keys)) { $this->clear(); return($this); } else { $this->log_error("An error occured when trying to add an index to MongoDB Collection"); exit; } } /** * list_indexes * * @usage : $this->mongo_db->list_indexes('foo'); */ public function list_indexes($collection = "") { if (empty($collection)) { $this->log_error("No Mongo collection specified to add index to"); exit; } return($this->db->{$collection}->getIndexInfo()); } /** * drop_collection * * @usage : $this->mongo_db->drop_collection('foo'); */ public function drop_collection($collection = "") { if (empty($collection)) { $this->log_error("No Mongo collection specified to add index to"); exit; } $this->db->{$collection}->drop(); return(true); } /** * 生成连接MongoDB 参数字符串 * */ private function connection_string() { include_once($this->mongo_config); $this->host = trim($config['host']); $this->port = trim($config['port']); $this->user = trim($config['user']); $this->pass = trim($config['pass']); $this->dbname = trim($config['dbname']); $this->persist = trim($config['persist']); $this->persist_key = trim($config['persist_key']); $connection_string = "mongodb://"; if (empty($this->host)) { $this->log_error("The Host must be set to connect to MongoDB"); exit; } if (empty($this->dbname)) { $this->log_error("The Database must be set to connect to MongoDB"); exit; } if ( ! empty($this->user) && ! empty($this->pass)) { $connection_string .= "{$this->user}:{$this->pass}@"; } if ( isset($this->port) && ! empty($this->port)) { $connection_string .= "{$this->host}:{$this->port}"; } else { $connection_string .= "{$this->host}"; } $this->connection_string = trim($connection_string); } /** * 连接MongoDB 获取数据库操作句柄 * */ private function connect() { $options = array(); if (true === $this->persist) { $options['persist'] = isset($this->persist_key) && ! empty($this->persist_key) ? $this->persist_key : "ci_mongo_persist"; } try { $this->connection = new Mongo($this->connection_string, $options); $this->db = $this->connection->{$this->dbname}; return ($this); } catch (MongoConnectionException $e) { $this->log_error("Unable to connect to MongoDB: {$e->getMessage()}"); } } /** * 初始化清理部分成员变量 * */ private function clear() { $this->selects = array(); $this->wheres = array(); $this->limit = NULL; $this->offset = NULL; $this->sorts = array(); } /** * 依据字段名初始化处理$wheres数组 * */ private function where_init($param) { if ( ! isset($this->wheres[$param])) { $this->wheres[$param] = array(); } } /** * 错误记录 * */ private function log_error($msg) { $msg = "[Date: ".date("Y-m-i H:i:s")."] ".$msg; @file_put_contents("./error.log", print_r($msg."\n", true), FILE_APPEND); } } /* End of MyMongo.php */ |
2. mongo_config.php配置文件：
?
|
1 2 3 4 5 6 7 8 9 |
$config["host"] = "localhost"; $config["user"] = ""; $config["pass"] = ""; $config["port"] = 27017; $config["dbname"] = "test"; $config['persist'] = TRUE; $config['persist_key'] = 'ci_mongo_persist'; /*End of mongo_config.php*/ |
3. MyMongoDemo.php文件：
?
|
1 2 3 4 5 6 7 8 9 10 11 |
include_once("MyMongo.php"); $conn = new MyMongo(); //删除所有记录 $conn->delete_all("blog"); //插入第一条记录 $value = array("name" => "小明", "age" => 25, "addr" => array("country" => "中国", "province" => "广西", "city" => "桂林")); $conn->insert("blog", $value); var_dump($conn->select(array("name", "age"))->get("blog")); var_dump($conn->get("blog")); /* End of MyMongoDemo.php */ |
希望本文所述对大家的php程序设计有所帮助。
