MongoRegex 类

(PECL mongo >=0.8.1)

Warning

This extension that defines this class is deprecated. Instead, the MongoDB extension should be used. Alternatives to this class include:

简介

这个类用于创建一个正则表达式。 通常这些表达式用于查询数据库中匹配的字符串。不常用的是,它们可以保存到数据库并用于检索。

正则表达式由四部分组成。 首先 / 作为起始的分隔符,然后是 pattern、另一个 / 以及最后包含 flag 的字符串。

Example #1 正则表达式

/pattern/flags

Mongo 能够识别六种正则表达式标记(flag):

  • i:大小写不敏感

  • m:多行

  • x:能够包含注释

  • l:语言环境

  • s:dotall,"." 匹配任何字符,包括换行符。

  • u:匹配 Unicode

类摘要

MongoRegex {
/* 字段 */
public string $regex ;
public string $flags ;
/* 方法 */
public __construct ( string $regex )
public string __toString ( void )
}

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User Contributed Notes 3 notes

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3
thusitha555 at gmail dot com
4 years ago
here is an example for case insensitive search.If there are two fields (user_name/company_name) in collection;
<?php
$search_string
='baR';
$searchQuery = array(
           
'$or' => array(
                array(
                   
'user_name' => new MongoRegex("/^$search_string/i"),
                    ),
                array(
                   
'company_name' => new MongoRegex("/^$search_string/i"),
                    ),
                )
            );

$cursor = $customers->find($searchQuery);
?>
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3
vinicius at codemakers dot com dot br
4 years ago
/*
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);
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0
benyounes dot ousama at gmail dot com
7 years ago
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");

<?php
// 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 = $resultset->getNext();
          echo
"Client Name: ".$clientObj["cname"]."</br>";
}
?>
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