functions.php

<?php
 
/**
 * Replace a section of an array with the elements in reverse
 *
 * @since mPDF 5.7
 * @param array $arr
 * @param int $offset
 * @param int $length
 */
function array_splice_reverse(array &$arr, $offset, $length)
{
$tmp = (array_reverse(array_slice($arr, $offset, $length)));
array_splice($arr, $offset, $length, $tmp);
}
 
/**
 * @since mPDF 5.7.4
 * @param string $url
 * @return string
 */
function urldecode_parts($url)
{
$file = $url;
$query = '';
if (preg_match('/[?]/', $url)) {
$bits = preg_split('/[?]/', $url, 2);
$file = $bits[0];
$query = '?' . $bits[1];
}
$file = rawurldecode($file);
$query = urldecode($query);
 
return $file . $query;
}
 
/**
 * @param string $str1
 * @param string $str2
 * @param int $start
 * @param int $length
 *
 * @return int
 */
function _strspn($str1, $str2, $start = null, $length = null)
{
$numargs = func_num_args();
if ($numargs == 2) {
return strspn($str1, $str2);
} else {
if ($numargs == 3) {
return strspn($str1, $str2, $start);
} else {
return strspn($str1, $str2, $start, $length);
}
}
}
 
/**
 * @param string $str1
 * @param string $str2
 * @param int $start
 * @param int $length
 *
 * @return int
 */
function _strcspn($str1, $str2, $start = null, $length = null)
{
$numargs = func_num_args();
if ($numargs == 2) {
return strcspn($str1, $str2);
} else {
if ($numargs == 3) {
return strcspn($str1, $str2, $start);
} else {
return strcspn($str1, $str2, $start, $length);
}
}
}
 
/**
 * @param resource $h
 * @param bool $force
 *
 * @return string
 */
function _fgets(&$h, $force = false)
{
$startpos = ftell($h);
$s = fgets($h, 1024);
if ($force && preg_match("/^([^\r\n]*[\r\n]{1,2})(.)/", trim($s), $ns)) {
$s = $ns[1];
fseek($h, $startpos + strlen($s));
}
 
return $s;
}
 
/**
 * @param string $text
 * @param string $ff
 *
 * @return string
 */
function PreparePreText($text, $ff = '//FF//')
{
$text = htmlspecialchars($text);
if ($ff) {
$text = str_replace($ff, '</pre><formfeed /><pre>', $text);
}
 
return ('<pre>' . $text . '</pre>');
}
 
if (!function_exists('strcode2utf')) {
/**
 * Converts all the &#nnn; and &#xhhh; in a string to Unicode
 *
 * @since mPDF 5.7
 * @param string $str
 * @param bool $lo
 *
 * @return string
 */
function strcode2utf($str, $lo = true)
{
if ($lo) {
$str = preg_replace_callback('/\&\#([0-9]+)\;/m', 'code2utf_lo_callback', $str);
$str = preg_replace_callback('/\&\#x([0-9a-fA-F]+)\;/m', 'codeHex2utf_lo_callback', $str);
} else {
$str = preg_replace_callback('/\&\#([0-9]+)\;/m', 'code2utf_callback', $str);
$str = preg_replace_callback('/\&\#x([0-9a-fA-F]+)\;/m', 'codeHex2utf_callback', $str);
}
 
return $str;
}
}
 
function code2utf_callback($matches)
{
return code2utf($matches[1], 0);
}
 
function code2utf_lo_callback($matches)
{
return code2utf($matches[1], 1);
}
 
function codeHex2utf_callback($matches)
{
return codeHex2utf($matches[1], 0);
}
 
function codeHex2utf_lo_callback($matches)
{
return codeHex2utf($matches[1], 1);
}
 
/**
 * PDF documents use the internal date format: (D:YYYYMMDDHHmmSSOHH'mm'). The date format has these parts:
 *
 * YYYY The full four-digit year. (For example, 2004)
 * MM The month from 01 to 12.
 * DD The day from 01 to 31.
 * HH The hour from 00 to 23.
 * mm The minute from 00 to 59.
 * SS The seconds from 00 to 59.
 * O The relationship of local time to Universal Time (UT), as denoted by one of the characters +, -, or Z.
 * HH The absolute value of the offset from UT in hours specified as 00 to 23.
 * mm The absolute value of the offset from UT in minutes specified as 00 to 59.
 *
 * @return string
 */
function pdfFormattedDate($date)
{
$z = date('O'); // +0200
$offset = substr($z, 0, 3) . "'" . substr($z, 3, 2) . "'"; // +02'00'
return date('YmdHis', $date) . $offset;
}
 
if (!function_exists('code2utf')) {
/**
 * @param int $num
 * @param bool $lo
 *
 * @return string
 */
function code2utf($num, $lo = true)
{
// Returns the utf string corresponding to the unicode value
if ($num < 128) {
if ($lo) {
return chr($num);
} else {
return '&#' . $num . ';';
}
}
if ($num < 2048) {
return chr(($num >> 6) + 192) . chr(($num & 63) + 128);
}
if ($num < 65536) {
return chr(($num >> 12) + 224) . chr((($num >> 6) & 63) + 128) . chr(($num & 63) + 128);
}
if ($num < 2097152) {
return chr(($num >> 18) + 240) . chr((($num >> 12) & 63) + 128) . chr((($num >> 6) & 63) + 128) . chr(($num & 63) + 128);
}
 
return '?';
}
}
 
if (!function_exists('codeHex2utf')) {
function codeHex2utf($hex, $lo = true)
{
$num = hexdec($hex);
if (($num < 128) && !$lo) {
return '&#x' . $hex . ';';
}
 
return code2utf($num, $lo);
}
}
 
if (!function_exists('cmp')) {
function cmp($a, $b)
{
return strcoll(strtolower($a['uf']), strtolower($b['uf']));
}
}