update : 2015.11.03
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Perform a regular expression search and replace using callbacks
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PHP Manual

preg_replace_callback_array

(PHP 7)

preg_replace_callback_array — Perform a regular expression search and replace using callbacks

설명

mixed preg_replace_callback_array ( array $patterns_and_callbacks , mixed $subject [, int $limit = -1 [, int &$count ]] )

The behavior of this function is similar to preg_replace_callback(), except that callbacks are executed on a per-pattern basis.

인수

patterns_and_callbacks

An associative array mapping patterns (keys) to callbacks (values).

subject

The string or an array with strings to search and replace.

limit

The maximum possible replacements for each pattern in each subject string. Defaults to -1 (no limit).

count

If specified, this variable will be filled with the number of replacements done.

반환값

preg_replace_callback_array() returns an array if the subject parameter is an array, or a string otherwise. On errors the return value is NULL

If matches are found, the new subject will be returned, otherwise subject will be returned unchanged.

예제

Example #1 preg_replace_callback_array() example

<?php
$subject = 'Aaaaaa Bbb';

preg_replace_callback_array(
    [
        '~[a]+~i' => function ($match) {
            echo strlen($match[0]), ' matches for "a" found', PHP_EOL;
        },
        '~[b]+~i' => function ($match) {
            echo strlen($match[0]), ' matches for "b" found', PHP_EOL;
        }
    ],
    $subject
);
?>

위 예제의 출력:

6 matches for "a" found
3 matches for "b" found

참고

PCRE 함수 목록
PHP Manual