Subversion-Projekte lars-tiefland.php_share

<?php

// +----------------------------------------------------------------------+

// | 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 1.18 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 <aidan@php.net>

 * @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;

    }

}

?>