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File: src/compat/compat_php73x.php

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File: src/compat/compat_php73x.php
Role: Auxiliary script
Content type: text/plain
Description: Auxiliary script
Class: PHP Backwards Compatibility Library
Functions of newer PHP versions for older versions
Author: By
Last change: Added New Functions - v1.0.2
Added New Functions - Version 1.0.2
Date: 10 months ago
Size: 6,466 bytes
 

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Class file image Download
<?php
/**
 * __ _ ___ ___ ___ ___ ___ ____ _ __ ___ ___
 * / _` |/ / / __/ _ \ / _ \ / / / __/| '_ ` _ \ / /
 * | (_| |\ \| (_| (_) | (_) |\ \ | (__ | | | | | |\ \
 * \__,_|/__/ \___\___/ \___/ /__/ \___\|_| |_| |_|/__/
 *
 *
 *************************************************************************************
 * @ASCOOS-NAME : ASCOOS CMS 24' *
 * @ASCOOS-VERSION : 24.0.0 *
 * @ASCOOS-CATEGORY : Kernel (Frontend and Administration Side) *
 * @ASCOOS-CREATOR : Drogidis Christos *
 * @ASCOOS-SITE : www.ascoos.com *
 * @ASCOOS-LICENSE : [Commercial] http://docs.ascoos.com/lics/ascoos/AGL-F.html *
 * @ASCOOS-COPYRIGHT : Copyright (c) 2007 - 2023, AlexSoft Software. *
 *************************************************************************************
 *
 * @package : ASCOOS CMS - phpBCL
 * @subpackage : Core Compatibilities Manager for PHP < 7.3.0
 * @source : /phpBCL/src/compat/compat_php73x.php
 * @version : **** - $release: 1.0 - $revision: 1 - $build: ****
 * @created : 2021-12-07 01:20:00 UTC+3
 * @updated : 2023-07-07 07:00:00 UTC+3
 * @author : Drogidis Christos
 * @authorSite : www.alexsoft.gr
 */


// Run on ASCOOS CMS only. Marked as comment if you want run this script with other cms.
defined ("ALEXSOFT_RUN_CMS") or die("Prohibition of Access.");


/**
 * ++ 7.3.0 Performs a full case fold conversion which removes case distinctions present in the string.
 * This is used for caseless matching. This may change the length of the string. Available since PHP 7.3.
 */
if (!defined('MB_CASE_FOLD')) define('MB_CASE_FOLD', 3);


/**
 * ++ 7.3.0 Performs simple upper-case fold conversion. This does not change the length of the string. Available as of PHP 7.3.
 */
if (!defined('MB_CASE_UPPER_SIMPLE')) define('MB_CASE_UPPER_SIMPLE', 4);


/**
 * ++ 7.3.0 Performs a simple lower-case fold conversion. This does not change the length of the string. Available as of PHP 7.3.
 */
if (!defined('MB_CASE_LOWER_SIMPLE')) define('MB_CASE_LOWER_SIMPLE', 5);


/**
 * ++ 7.3.0 Performs simple title-case fold conversion. This does not change the length of the string. Available as of PHP 7.3.
 */
if (!defined('MB_CASE_TITLE_SIMPLE')) define('MB_CASE_TITLE_SIMPLE', 6);


/**
 * ++ 7.3.0 Performs a simple case fold conversion which removes case distinctions present in the string.
 * This is used for caseless matching. This does not change the length of the string.
 * Used by case-insensitive operations internally by the MBString extension. Available as of PHP 7.3.
 */
if (!defined('MB_CASE_FOLD_SIMPLE')) define('MB_CASE_FOLD_SIMPLE', 7);




/**
 * If the function [ array_key_first ] does not exist then we create it.
 * ++ 7.3.0 ---- https://www.php.net/manual/en/function.array-key-first.php
 */
if (!function_exists('array_key_first'))
{
 
/**
   * Get the first key of the given array without affecting the internal array pointer.
   *
   * @link https://www.php.net/manual/en/function.array-key-first.php
   *
   * @param array $array An array.
   *
   * @return int|string|null Returns the first key of array if the array is not empty; null otherwise.
   */
 
function array_key_first($array)
  {
   
$errors = array(
       
'array_key_first(): expects parameter 1 to be array, '.gettype($array).' given',
       
'array_key_first(): Parameter 1 cannot be empty'
   
);

   
/******************
     * Check for Errors
     *****************/
   
if (!is_array($array)) {
       
trigger_error($errors[0], E_USER_WARNING);
        return
null;
    }


    if (!empty(
$array)) {
        foreach(
$array as $key => $unused) {
            return
$key;
        }
    } else {
       
trigger_error($errors[1], E_USER_WARNING);
        return
null;
    }
    return
null;
  }
}



/**
 * If the function [ array_key_last ] does not exist then we create it.
 * ++ 7.3.0 ---- https://www.php.net/manual/en/function.array-key-last.php
 */
if (!function_exists('array_key_last'))
{
   
/**
     * Gets the last key of an array
     *
     * Get the last key of the given array without affecting the internal array pointer.
     *
     * @link https://www.php.net/manual/en/function.array-key-last.php
     *
     * @param array $array An array.
     *
     * @return int|string|null Returns the last key of array if the array is not empty; null otherwise.
     */
   
function array_key_last($array)
    {
       
$errors = array(
           
'array_key_last(): expects parameter 1 to be array, '.gettype($array).' given',
           
'array_key_last(): Parameter 1 cannot be empty'
       
);

       
/******************
         * Check for Errors
         *****************/
       
if (!is_array($array)) {
           
trigger_error($errors[0], E_USER_WARNING);
            return
null;
        }

        if( !empty(
$array) ) {
            return
key(array_slice($array, -1, 1, true));
        } else {
           
trigger_error($errors[1], E_USER_WARNING);
            return
null;
        }
       
//return null;
   
}
}



/**
 * If the function [ is_countable ] does not exist then we create it.
 * ++ 7.3.0 ---- https://www.php.net/manual/en/function.is-countable.php
 */
if (!function_exists('is_countable')) {
   
/**
     * Verify that the contents of a variable is a countable value
     *
     * Verify that the contents of a variable is an array or an object implementing Countable
     *
     * @link https://www.php.net/manual/en/function.is-countable.php
     *
     * @param mixed $value The value to check
     *
     * @return bool Returns true if value is countable, false otherwise.
     */
   
function is_countable($value)
    {
        return
is_array($value) || (is_object($value) && ($value instanceof Countable || $value instanceof ResourceBundle || $value instanceof SimpleXmlElement || $value instanceof ArrayIterator));
    }
}

?>