array preg_grep ( string $pattern, array $input [, int $flags] );
Returns the array consisting of the elements of the input array that match the given pattern.
If flag is set to PREG_GREP_INVERT, this function returns the elements of the input array that do not match the given pattern.
Returns an array indexed using the keys from the input array.
Following is the piece of code, copy and paste this code into a file and verify the result.
<?php $foods = array("pasta", "steak", "fish", "potatoes"); // find elements beginning with "p", followed by one or more letters. $p_foods = preg_grep("/p(\w+)/", $foods); print "Found food is " . $p_foods; print "Found food is " . $p_foods; ?>
This will produce the following result −
Found food is pastaFound food is