preg_replace_callback_array
(PHP 7)
preg_replace_callback_array — Perform a regular expression search and replace using callbacks
Description
$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.
Parameters
-
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
subjectstring. Defaults to -1 (no limit). -
count -
If specified, this variable will be filled with the number of replacements done.
Return Values
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.
Examples
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
);
?>
The above example will output:
6 matches for "a" found 3 matches for "b" found
See Also
- PCRE Patterns
- preg_replace_callback() - Perform a regular expression search and replace using a callback
- preg_quote() - Quote regular expression characters
- preg_replace() - Perform a regular expression search and replace
- preg_last_error() - Returns the error code of the last PCRE regex execution
- Anonymous functions
- information about the callback type
English translation
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Document created the 30/01/2003, last modified the 26/10/2018
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References
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