The MongoRegex class

(PECL mongo >=0.8.1)


This class can be used to create regular expressions. Typically, these expressions will be used to query the database and find matching strings. More unusually, they can be saved to the database and retrieved.

Regular expressions consist of four parts. First a / as starting delimiter, then then pattern, another / and finally a string containing flags.

Пример #1 Regular expression pattern


MongoDB recognizes six regular expression flags:

  • i: Case insensitive

  • m: Multiline

  • x: Can contain comments

  • l: locale

  • s: dotall, "." matches everything, including newlines

  • u: match unicode

Обзор классов

MongoRegex {
/* Fields */
public string $regex ;
public string $flags ;
/* Методы */
public __construct ( string $regex )
public string __toString ( void )



First you must declare and define your regexObj
Here I am looking for all entry of my database wich is like "%Nicolas%" and the /i param is used for Insensitive Case
 $regexObj = new MongoRegex("/^Nicolas/i");

// I attach the regexObj to my Where Condition
$where = array("ctname" => $regexObj);

// Execute the request
$resultset $this->db->Infos->find($where);

// Parsing the results 
while ($resultset->hasNext())
$clientObj $resultset->getNext();
"Client Name: ".$clientObj["cname"]."</br>";
2010-11-19 11:49:26
 Use the "i" option to make searches with Case Insensitive
 Find results beginning with $q

$search = "V";

// Case Sensitive

$where = array('name' => array('$regex' => new MongoRegex("/^$search/")));
$cursor = $collection->find($where);

//Case Insensitive

$where = array('name' => array('$regex' => new MongoRegex("/^$search/i")));
$cursor = $collection->find($where);
2013-12-24 17:17:15
here is an example for case insensitive search.If there are two fields (user_name/company_name) in collection;
$searchQuery = array(
'$or' => array(
'user_name' => new MongoRegex("/^$search_string/i"),
'company_name' => new MongoRegex("/^$search_string/i"),

$cursor $customers->find($searchQuery);
2014-10-27 08:36:33

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