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PHP Function preg_grep()

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Syntax

array preg_grep ( string $pattern, array $input [, int $flags] );

Definition and Usage

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.

Return Value

Example

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[0];
print "Found food is " . $p_foods[1];

?>

This will produce following result.

Found food is pasta
Found food is potatoes

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