百科狗preg_replace_callback_array() - php 正则表达式（PCRE）
preg_replace_callback_array()
版本：php7
(PHP 7)
Perform a regular expression search and replace using callbacks
说明
preg_replace_callback_array(array $patterns_and_callbacks, mixed $subject[,int $limit= -1[,int &$count]]): mixedThe behavior of this function is similar to preg_replace_callback(), except that callbacks are executed on a per-pattern basis.
参数
$patterns_and_callbacksAn associative array mapping patterns(keys)to callbacks(values).
$subject
The string or an array with strings to search and replace.
$limitThe maximum possible replacements for each pattern in each$subjectstring. Defaults to-1(no limit).
$countIf specified, this variable will be filled with the number of replacements done.
返回值
preg_replace_callback_array() returns an array if the$subjectparameter 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$subjectwill be returned unchanged.
范例
preg_replace_callback_array() example
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