PHP - Manual: mb_eregi

2024-11-13

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mb_eregi

(PHP 4 >= 4.2.0, PHP 5, PHP 7, PHP 8)

mb_eregi — Regular expression match ignoring case with multibyte support

说明

mb_eregi(string $pattern, string $string, array &$matches = null): bool

Executes the case insensitive regular expression match with multibyte support.

参数

pattern

The regular expression pattern.

string

The string being searched.

matches

If matches are found for parenthesized substrings of pattern and the function is called with the third argument matches, the matches will be stored in the elements of the array matches. If no matches are found, matches is set to an empty array.

$matches[1] will contain the substring which starts at the first left parenthesis; $matches[2] will contain the substring starting at the second, and so on. $matches[0] will contain a copy of the complete string matched.

返回值

Returns whether pattern matches string.

更新日志

版本	说明
8.0.0	This function returns `true` on success now. Previously, it returned the byte length of the matched string if a match for `pattern` was found in `string` and `matches` was passed. If the optional parameter `matches` was not passed or the length of the matched string was `0`, this function returned `1`.
7.1.0	mb_eregi() will now set `matches` to an empty array, if nothing matched. Formerly, `matches` was not modified in that case.

注释

注意:
mb_regex_encoding() 指定的内部编码或字符编码将会当作此函数用的字符编码。

参见

mb_regex_encoding() - Set/Get character encoding for multibyte regex
mb_ereg() - Regular expression match with multibyte support

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User Contributed Notes 3 notes

down

bubalula at gmail dot com ¶

11 years ago


This function does not work - it is not case insensitive for non latin characters.

down

steve at brainwashstudios dot com ¶

19 years ago


When this function is perfected, and is not experimental, it may be very usefull in the searching and pinpointing of places inside large text files.

down

-7

lasmit at what dot com ¶

10 years ago


I simulated it:
<?php
   $text = 'Äpfel';
   mb_internal_encoding( 'utf-8' );
   printf( "%d\n", mb_eregi( 'äpfel', $text ) ); // Output: 0
   printf( "%d\n", mb_ereg( 'äpfel', mb_strtolower( $text ) ) ); // Output: 1
   printf( "%d\n", mb_eregi( 'äpfel', mb_strtolower( $text ) ) ); // Output: 1
?>

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官方地址：https://www.php.net/manual/en/function.mb-eregi.php

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mb_eregi

说明

参数

返回值

更新日志

注释

参见

User Contributed Notes 3 notes