Detailed explanation of regular expression preg_grep function

This article mainly shares with you the detailed explanation of the regular expression preg_grep function. preg_grep returns an array composed of elements matching the pattern pattern in the given array input. Hope it helps everyone.

$array = array(1.2, 1.3, 1, 11.1);$fl_array = preg_grep("/^(\d+)?\.\d+$/", $array);
var_dump($fl_array); //array(2) { [0]=> float(1.2) [1]=> float(1.3) }$fl_array = preg_grep("/^(\d+)?\.\d+$/", $array);
var_dump($fl_array); //array(1) { [2]=> int(1) }

(PHP) Regular expression-preg_grep function usage

Example explains the use of PHP function preg_grep()_PHP tutorial

Example to explain the use of PHP function preg_grep()

The above is the detailed content of Detailed explanation of regular expression preg_grep function. For more information, please follow other related articles on the PHP Chinese website!