Re: [phpodpworld-users] PHP version 4.x support

[Hans F. N. <Han...@hi...>]

* Hans F. Nordhaug <Han...@hi...> [2006-04-20]:
> * Howard Lee <hl...@gm...> [2006-04-20]:
> > Dear all,
> > 
> > According to the phpodpworld home page, PHP 4.3 or better is required.
> > However, the function str_ireplace is used in the file
> > functions.inc.php. This function is only present in PHP 5 as I
> > understand. Any comments?
> 
> Your are correct on both issues - str_ireplace requires PHP 5 - and
> the intended requirement for phpodpworld was 4.3. Is this an immediate
> problem for you? I'll of course rewrite the part that use str_ireplace
> because requiring PHP is too strict.

The easy solution (which I'll implement) is to use str_ireplace from
PHP_Compat - see http://pear.php.net/package/PHP_Compat/

For your convenience I have included the function below - just add it
to functions.inc.php and you should be fine (but you have maybe done
this already)?

Hans

---------- str_ireplace ----------------------------------------------------

// +----------------------------------------------------------------------+
// | 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          |
// | li...@ph... so we can mail you a copy immediately.               |
// +----------------------------------------------------------------------+
// | Authors: Aidan Lister <ai...@ph...>                                |
// +----------------------------------------------------------------------+
//
// $Id: str_ireplace.php,v 1.18 2005/01/26 04:55:13 aidan Exp $


/**
 * Replace str_ireplace()
 *
 * @category    PHP
 * @package     PHP_Compat
 * @link        http://php.net/function.str_ireplace
 * @author      Aidan Lister <ai...@ph...>
 * @version     $Revision: 1.18 $
 * @since       PHP 5
 * @require     PHP 4.0.0 (user_error)
 * @note        count not by returned by reference, to enable
 *              change '$count = null' to '&$count'
 */
if (!function_exists('str_ireplace')) {
    function str_ireplace($search, $replace, $subject, $count = null)
    {
        // Sanity check
        if (is_string($search) && is_array($replace)) {
            user_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);
        }
        $search = array_values($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;
            }
        }
        $replace = array_values($replace);

        // 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;
    }
}