PHP MongoDB Operation class with a few simple examples

Before the script house has sent a few similar articles, we can refer to.

Core code:

Class Newmongodb {private $mongo;  Newmongodb connection Private $curr _db_name;  Private $curr _table_name;  Private $error;  public $config;    Public Function getinstance ($mongo _server, $flag =array ()) {static $NewMongodb _arr;     if (Empty ($flag [' tag ')]) {$flag [' tag '] = ' default ';      if (Isset ($flag [' Force ']) && $flag [' force '] = = true) {$mongo = new Newmongodb ($mongo _server);      if (Empty ($NewMongodb _arr[$flag [' tag ']]) {$NewMongodb _arr[$flag [' tag ']] = $mongo;    } return $mongo;  } else if (Isset ($NewMongodb _arr[$flag [' tag ']) && is_resource ($NewMongodb _arr[$flag [' tag '])) {return    $NewMongodb _arr[$flag [' tag '];      } else {$mongo = new Newmongodb ($mongo _server);      $NewMongodb _arr[$flag [' tag '] = $mongo;    return $mongo; }}/** * constructor * supports incoming multiple mongo_server (1. A problem when connecting to other servers 2. Automatically distribute queries evenly to different servers) * Parameters: * $mongo _server: Array or string-a Rray ("127.0.0.1:1111", "127.0.0.1:2222")-"127.0.0.1:1111 "* $connect: Whether to initialize MONGO object when connected, default connection * $auto _balance: Whether to do load balancing automatically, default is * * * return Value: * Success: MONGO Object * failed: false   */Public Function __construct ($mongo _server, $connect =true, $auto _balance=true) {if (Is_array ($mongo _server)) {   $mongo _server_num = count ($mongo _server);    if ($mongo _server_num > 1 && $auto _balance) {$prior _server_num = rand (1, $mongo _server_num);    $rand _keys = Array_rand ($mongo _server, $mongo _server_num);    $mongo _server_str = $mongo _server[$prior _server_num-1]; foreach ($rand _keys as $key) {if ($key! = $prior _server_num-1) {$mongo _server_str. = ', '. $mongo _server[    $key];   }}}} else {$mongo _server_str = implode (', ', $mongo _server);   }} else {$mongo _server_str = $mongo _server;   try {$this->mongo = new Mongoclient ($mongo _server, Array (' connect ' = = $connect));    } catch (Mongoconnectionexception $e) {$this->error = $e->getmessage ();   return false;   }  }  /** * Connect NEWMONGODB Server * Parameter: None * * return Value: * Success: TRUE * Failed: false */Public function connect () {try {      $this->mongo->connect ();    return true;      } catch (Mongoconnectionexception $e) {$this->error = $e->getmessage ();    return false; }}/** * Select db * parameter: $dbname * * return value: none */Public Function Selectdb ($dbname) {$this->curr_db_name  = $dbname;  /** * Index is created: returns if the index already exists.  * Parameters: * $table _name: Table name * $index: Index-array ("id" =>1)-Ascending index in ID field * $index _param: Other criteria-whether unique index etc * * return value: * Success: TRUE * Failed: false */Public function ensureindex ($table _name, $index, $index _param=array ()) {$dbname = $this->curr_db_n    Ame    $index _param[' safe '] = 1;      try {$this->mongo-> $dbname, $table _name->ensureindex ($index, $index _param);    return true;      } catch (Mongocursorexception $e) {$this->error = $e->getmessage ();    return false; }}/** * Insert record * * parameter: * $table _name: Table name * $record: Record * * return value: * Success: TRUE * Failure: false */Public function Insert ($table _name, $record) {$dbname = $this-&G    T;curr_db_name;      try {$this->mongo-> $dbname, $table _name->insert ($record, Array (' safe ' =>true));    return true;      } catch (Mongocursorexception $e) {$this->error = $e->getmessage ();    return false;  }}/** * Number of records in query table * parameter: * $table _name: Table name * * Return value: Number of records in table */Public Function count ($table _name) {$dbname =    $this->curr_db_name;  Return $this->mongo-> $dbname, $table _name->count (); }/** * Update record * * Parameter: * $table _name: Table name * $condition: Update condition * $newdata: New data record * $options: Update selection-upsert/multiple * *  Return Value: * Success: TRUE * Failed: false */Public Function update ($table _name, $condition, $newdata, $options =array ()) {$dbname    = $this->curr_db_name;    $options [' safe '] = 1;     if (!isset ($options [' multiple '])) {$options [' multiple '] = 0; try {$this->mongo-> $dbnamE-> $table _name->update ($condition, $newdata, $options);    return true;      } catch (Mongocursorexception $e) {$this->error = $e->getmessage ();    return false; }}/** * Delete record * parameter: * $table _name: Table name * $condition: Delete condition * $options: Delete selection-justone * * return Value: * Success: TRUE * Failure: FA    LSE */Public Function remove ($table _name, $condition, $options =array ()) {$dbname = $this->curr_db_name;    $options [' safe '] = 1;      try {$this->mongo-> $dbname, $table _name->remove ($condition, $options);    return true;      } catch (Mongocursorexception $e) {$this->error = $e->getmessage ();  return false; }}/** * Find record * parameter: * $table _name: Table name * $query _condition: Field Find condition * $result _condition: Query Result Restrictions-limit/sort etc. * $f Ields: Get field * * return value: * Success: Recordset * failed: false */Public function find ($table _name, $query _condition, $result _condition=arr    Ay (), $fields =array ()) {$dbname = $this->curr_db_name; $cursor = $this->mongo-> $dbname $table _name->find ($query _condition, $fields);    if (!empty ($result _condition[' start ')) {$cursor->skip ($result _condition[' start ']);    } if (!empty ($result _condition[' limit ')) {$cursor->limit ($result _condition[' limit ');    } if (!empty ($result _condition[' sort ')) {$cursor->sort ($result _condition[' sort ']);    } $result = Array ();      try {while ($cursor->hasnext ()) {$result [] = $cursor->getnext ();      }} catch (Mongoconnectionexception $e) {$this->error = $e->getmessage ();    return false;      } catch (Mongocursortimeoutexception $e) {$this->error = $e->getmessage ();    return false;  } return $result; /** * Find a record * parameter: * $table _name: Table name * $condition: Find condition * $fields: Get field * * return value: * Success: One record * failed: false */P    ublic function FindOne ($table _name, $condition, $fields =array ()) {$dbname = $this->curr_db_name; Return $this->mongo-> $dbname $table _name->findone ($condition, $fields);  /** * Get current error message * parameter: None * * Return Value: Current error message */Public function GetError () {return $this->error;  }/*** Newmongodb Class * * Examples: * $mongo = new Newmongodb ("127.0.0.1:11223");  * $mongo->selectdb ("test_db");  * CREATE INDEX * $mongo->ensureindex ("test_table", Array ("id" =>1), Array (' unique ' =>true));  * Get records of the table * $mongo->count ("test_table");  * Insert Record * $mongo->insert ("test_table", Array ("id" =>2, "title" = "Asdqw"));  * Update record * $mongo->update ("test_table", Array ("id" =>1), Array ("id" =>1, "title" = "BBB")); * Update record-existing when updated, not present when adding-equivalent set * $mongo->update ("test_table", Array ("id" =>1), Array ("id" =>1, "title" = "BBB")  , Array ("Upsert" =>1)); * Find Records * $mongo->find ("C", Array ("title" = "Asdqw"), Array ("Start" =>2, "Limit" =>2, "Sort" =>array ("id" =  >1))) * Find a record * $mongo->findone ("$mongo->findone (" TTT ", Array (" id "=>1)", Array ("id" =>1)); * Delete Record *$mongo->remove ("TTT", Array ("title" = "BBB"));  * Delete Only one record * $mongo->remove ("TTT", Array ("title" = "BBB"), Array ("Justone" =>1));  * Get error message for MONGO operation * $mongo->geterror (); */}