<?php
/**
* @package VikBooking
* @subpackage core
* @author E4J s.r.l.
* @copyright Copyright (C) 2022 E4J s.r.l. All Rights Reserved.
* @license http://www.gnu.org/licenses/gpl-2.0.html GNU/GPL
* @link https://vikwp.com
*/
// No direct access
defined('ABSPATH') or die('No script kiddies please!');
/**
* VikBooking HTML main helper.
*
* @since 1.5
*/
abstract class JHtmlVikbooking
{
/**
* Helper method used to obtain a shorten version of the given text.
*
* Even if a maximum threshold is provided, this doesn't mean that the
* length of the resulting text will be exactly equal to that amount.
* This beacuse the function doesn't break words.
*
* @param string $text The text to shorten.
* @param int|null $max The maximum number of allowed characters.
*
* @return string
*
* @since 1.8
*/
public static function shorten(string $text, ?int $max = null): string
{
// add a white space after the closure of any tag
$text = preg_replace_callback("/(<\/[a-z0-9\-]+>)|(\s*\/\s*>)/", function($match) {
return $match[0] . " ";
}, $text);
// get rid of HTML tags
$text = strip_tags($text);
// remove duplicate white spaces and replace new lines with spaces
$text = preg_replace("/(\s{2,})|(\R+)/", ' ', $text);
// calculate total length of the text
$len = strlen($text);
// Check whether we should take a substring of the text.
// Reserve an additional 25% of characters to avoid breaking the
// text too close to the end of the string.
if ($max && $len > $max * 1.25) {
// explode the string in words
$chunks = explode(' ', $text);
$text = '';
// keep adding words until we reach the maximum threshold
while ($chunks && strlen($text) < $max) {
$text .= array_shift($chunks) . ' ';
}
// get rid of trailing special characters and add the ellipsis
$text = rtrim($text, '.,?!;:#\'"([{ ') . '...';
}
return $text;
}
/**
* Calculates the maximum upload file size and returns string with unit or the size in bytes.
*
* @param bool $unitOutput This parameter determines whether the return value
* should be a string with a unit.
*
* @return float|string The maximum upload size of files with the appropriate unit or in bytes.
*/
public static function maxuploadsize($unitOutput = true)
{
static $max_size = false;
if ($max_size === false)
{
$max_size = self::parseSize(ini_get('post_max_size'));
$upload_max = self::parseSize(ini_get('upload_max_filesize'));
// check what is the highest value between post and upload max sizes
if ($upload_max > 0 && ($upload_max < $max_size || $max_size == 0))
{
$max_size = $upload_max;
}
}
if (!$unitOutput)
{
// return numerical max size
return $max_size;
}
// format max size
return JHtml::fetch('number.bytes', $max_size, 'auto', 0);
}
/**
* Returns the size in bytes without the unit for the comparison.
*
* @param string $size The size which is received from the PHP settings.
*
* @return float The size in bytes without the unit.
*/
private static function parseSize($size)
{
// extract the size unit
$unit = preg_replace('/[^bkmgtpezy]/i', '', $size);
// take only the size numbers
$size = preg_replace('/[^0-9\.]/', '', $size);
$return = round($size);
if ($unit)
{
// calculate the correct size according to the specified unit
$return = round($size * pow(1024, stripos('bkmgtpezy', $unit[0])));
}
return $return;
}
}