preg_replace_callback

Руководство по PHP
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(PHP 4 >= 4.0.5)

preg_replace_callback -- Perform a regular expression search and replace using a callback

Description

mixed preg_replace_callback ( mixed pattern, callback callback, mixed subject [, int limit])

The behavior of this function is almost identical to preg_replace(), except for the fact that instead of replacement parameter, one should specify a callback that will be called and passed an array of matched elements in the subject string. The callback should return the replacement string.

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preg_quote	Уровень выше	preg_replace