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Created: Wed, Jan 21, 1:36 PM

str_ireplace.php
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	<?php
	/* vim: set expandtab tabstop=4 shiftwidth=4: */
	// +----------------------------------------------------------------------+
	// \| PHP Version 4 \|
	// +----------------------------------------------------------------------+
	// \| Copyright (c) 1997-2004 The PHP Group \|
	// +----------------------------------------------------------------------+
	// \| This source file is subject to version 3.0 of the PHP license, \|
	// \| that is bundled with this package in the file LICENSE, and is \|
	// \| available at through the world-wide-web at \|
	// \| http://www.php.net/license/3_0.txt. \|
	// \| If you did not receive a copy of the PHP license and are unable to \|
	// \| obtain it through the world-wide-web, please send a note to \|
	// \| license@php.net so we can mail you a copy immediately. \|
	// +----------------------------------------------------------------------+
	// \| Authors: Aidan Lister <aidan@php.net> \|
	// +----------------------------------------------------------------------+
	//
	// $Id: str_ireplace.php,v 1.1 2004-10-26 18:22:16 kostja Exp $
	//


	/**
	* Replace str_ireplace()
	*
	* @category PHP
	* @package PHP_Compat
	* @link http://php.net/function.str_ireplace
	* @author Aidan Lister <aidan@php.net>
	* @version $Revision: 1.1 $
	* @since PHP 5
	* @internal count not by returned by reference - not possible in php4
	* @require PHP 4.0.1 (trigger_error)
	*/
	if (!function_exists('str_ireplace'))
	{
	function str_ireplace ($search, $replace, $subject, $count = null)
	{
	if (is_string($search) && is_array($replace)) {
	trigger_error('Array to string conversion', E_USER_NOTICE);
	$replace = (string) $replace;
	}

	// If search isn't an array, make it one
	if (!is_array($search)) {
	$search = array ($search);
	}

	// If replace isn't an array, make it one, and pad it to the length of search
	if (!is_array($replace))
	{
	$replace_string = $replace;

	$replace = array ();
	for ($i = 0, $c = count($search); $i < $c; $i++)
	{
	$replace[$i] = $replace_string;
	}
	}

	// Check the replace array is padded to the correct length
	$length_replace = count($replace);
	$length_search = count($search);
	if ($length_replace < $length_search)
	{
	for ($i = $length_replace; $i < $length_search; $i++)
	{
	$replace[$i] = '';
	}
	}

	// If subject is not an array, make it one
	$was_array = false;
	if (!is_array($subject)) {
	$was_array = true;
	$subject = array ($subject);
	}

	// Loop through each subject
	$count = 0;
	foreach ($subject as $subject_key => $subject_value)
	{
	// Loop through each search
	foreach ($search as $search_key => $search_value)
	{
	// Split the array into segments, in between each part is our search
	$segments = explode(strtolower($search_value), strtolower($subject_value));

	// The number of replacements done is the number of segments minus the first
	$count += count($segments) - 1;
	$pos = 0;

	// Loop through each segment
	foreach ($segments as $segment_key => $segment_value)
	{
	// Replace the lowercase segments with the upper case versions
	$segments[$segment_key] = substr($subject_value, $pos, strlen($segment_value));
	// Increase the position relative to the initial string
	$pos += strlen($segment_value) + strlen($search_value);
	}

	// Put our original string back together
	$subject_value = implode($replace[$search_key], $segments);
	}

	$result[$subject_key] = $subject_value;
	}

	// Check if subject was initially a string and return it as a string
	if ($was_array === true) {
	return $result[0];
	}

	// Otherwise, just return the array
	return $result;
	}
	}

	?>

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