PHP Manual
PrevNext

preg_grep

(PHP 4 , PHP 5)

preg_grep --  Return array entries that match the pattern

Description

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

preg_grep() returns the array consisting of the elements of the input array that match the given pattern.

flags can be the following flag:

PREG_GREP_INVERT

If this flag is passed, preg_grep() returns the elements of the input array that do not match the given pattern. This flag is available since PHP 4.2.0.

Since PHP 4.0.4, the results returned by preg_grep() are indexed using the keys from the input array. If this behavior is undesirable, use array_values() on the array returned by preg_grep() to reindex the values.

Example 1. preg_grep() example

<?php
// return all array elements
// containing floating point numbers
$fl_array = preg_grep("/^(\d+)?\.\d+$/", $array);
?>

PrevHomeNext
Pattern SyntaxUppreg_match_all
The Broward PHP Usergroup would like to thank the following sponsors.

  • South Florida Web Design

  • South Florida Maids

  • Miami Cleaning Service

  • Broward PHP Usergroup

  • Nationwide Real Estate Agent Directory

  • Fort Lauderdale Web Design

  • Real Estate Agent

  • Gourmet Flavored Coffee

  • convex optimization

  • convex optimization

  • Nationwide Bail Bonds Agent Directory

  • Fort Lauderdale Computer Repair

  • Broward County Computer Repair

  • dance music video

  • Miami Computer Repair