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:

MongoDB\BSON\Regex

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 __toString ( void ) : string

}

MongoRegex::__construct — 创建一个新的正则表达式
MongoRegex::__toString — 正则表达式的字符串表达形式

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User Contributed Notes 3 notes

down

vinicius at codemakers dot com dot br ¶

5 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);

down

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);
?>

down

benyounes dot ousama at gmail dot com ¶

8 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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MongoRegex 类

简介

类摘要

Table of Contents

User Contributed Notes 3 notes