preg_grep
preg_grep
(PHP 4, PHP 5, PHP 7)
preg_grep — Return array entries that match the pattern
Description
array preg_grep ( string $pattern , array $input [, int $flags = 0 ] )
Returns the array consisting of the elements of the input array that match the given pattern.
Parameters
-
pattern -
The pattern to search for, as a string.
-
input -
The input array.
-
flags -
If set to
PREG_GREP_INVERT, this function returns the elements of the input array that do not match the givenpattern.
Return Values
Returns an array indexed using the keys from the input array.
Examples
Example #1 preg_grep() example
<?php
// return all array elements
// containing floating point numbers
$fl_array = preg_grep("/^(\d+)?\.\d+$/", $array);
?> See Also
- PCRE Patterns
- preg_quote() - Quote regular expression characters
- preg_match_all() - Perform a global regular expression match
- preg_filter() - Perform a regular expression search and replace
- preg_last_error() - Returns the error code of the last PCRE regex execution
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Licensed under the Creative Commons Attribution License v3.0 or later.
https://secure.php.net/manual/en/function.preg-grep.php
