(PHP 4 )
preg_grep -- Return array entries that match the pattern
Description
array preg_grep
(string pattern, array input)
preg_grep() returns the array consisting of
the elements of the input array that match
the given pattern.
Esempio 1. preg_grep() example
preg_grep("/^(\d+)?\.\d+$/", $array); // find all floating point numbers in the array
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Nota:
This function was added in PHP 4.0.