<?php
/**
* DOMPDF - PHP5 HTML to PDF renderer
*
* File: $RCSfile: functions.inc.php,v $
* Created on: 2004-08-04
*
* Copyright (c) 2004 - Benj Carson <benjcarson@digitaljunkies.ca>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library in the file LICENSE.LGPL; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
* 02111-1307 USA
*
* Alternatively, you may distribute this software under the terms of the
* PHP License, version 3.0 or later. A copy of this license should have
* been distributed with this file in the file LICENSE.PHP . If this is not
* the case, you can obtain a copy at http://www.php.net/license/3_0.txt.
*
* The latest version of DOMPDF might be available at:
* http://www.dompdf.com/
*
* @link http://www.dompdf.com/
* @copyright 2004 Benj Carson
* @author Benj Carson <benjcarson@digitaljunkies.ca>
* @contributor Helmut Tischer <htischer@weihenstephan.org>
* @package dompdf
*
* Changes
* @contributor Helmut Tischer <htischer@weihenstephan.org>
* @version 0.5.1.htischer.20090507
* - trailing slash of base_path in build_url is no longer optional when
* required. This allows paths not ending in a slash, e.g. on dynamically
* created sites with page id in the url parameters.
* @version 20090601
* - fix windows paths
* @version 20090610
* - relax windows path syntax, use uniform path delimiter. Used for background images.
*/
/* $Id: functions.inc.php 361 2011-02-16 21:03:05Z fabien.menager $ */
function def($name, $value = true) {
if (!defined($name)) {
define($name, $value);
}
}
if ( !function_exists("pre_r") ) {
/**
* print_r wrapper for html/cli output
*
* Wraps print_r() output in < pre > tags if the current sapi is not
* 'cli'. Returns the output string instead of displaying it if $return is
* true.
*
* @param mixed $mixed variable or expression to display
* @param bool $return
*
*/
function pre_r($mixed, $return = false) {
if ($return)
return "<pre>" . print_r($mixed, true) . "</pre>";
if ( php_sapi_name() !== "cli")
echo ("<pre>");
print_r($mixed);
if ( php_sapi_name() !== "cli")
echo("</pre>");
else
echo ("\n");
flush();
}
}
if ( !function_exists("pre_var_dump") ) {
/**
* var_dump wrapper for html/cli output
*
* Wraps var_dump() output in < pre > tags if the current sapi is not
* 'cli'.
*
* @param mixed $mixed variable or expression to display.
*/
function pre_var_dump($mixed) {
if ( php_sapi_name() !== "cli")
echo("<pre>");
var_dump($mixed);
if ( php_sapi_name() !== "cli")
echo("</pre>");
}
}
if ( !function_exists("d") ) {
/**
* generic debug function
*
* Takes everything and does its best to give a good debug output
*
* @param mixed $mixed variable or expression to display.
*/
function d($mixed) {
if ( php_sapi_name() !== "cli")
echo("<pre>");
// line
if (is_array($mixed) && array_key_exists("tallest_frame", $mixed)) {
echo "<strong>LINE</strong>:\n";
foreach($mixed as $key => $value) {
if (is_array($value) || is_object($value)) continue;
echo " $key:\t".var_export($value,true)."\n";
}
}
// other
else {
var_export($mixed);
}
if ( php_sapi_name() !== "cli")
echo("</pre>");
}
}
/**
* builds a full url given a protocol, hostname, base path and url
*
* @param string $protocol
* @param string $host
* @param string $base_path
* @param string $url
* @return string
*
* Initially the trailing slash of $base_path was optional, and conditionally appended.
* However on dynamically created sites, where the page is given as url parameter,
* the base path might not end with an url.
* Therefore do not append a slash, and **require** the $base_url to ending in a slash
* when needed.
* Vice versa, on using the local file system path of a file, make sure that the slash
* is appended (o.k. also for Windows)
*/
function build_url($protocol, $host, $base_path, $url) {
if ( mb_strlen($url) == 0 ) {
//return $protocol . $host . rtrim($base_path, "/\\") . "/";
return $protocol . $host . $base_path;
}
// Is the url already fully qualified or a Data URI?
if ( mb_strpos($url, "://") !== false || mb_strpos($url, "data:") === 0 )
return $url;
$ret = $protocol;
if (!in_array(mb_strtolower($protocol), array("http://", "https://", "ftp://", "ftps://"))) {
//On Windows local file, an abs path can begin also with a '\' or a drive letter and colon
//drive: followed by a relative path would be a drive specific default folder.
//not known in php app code, treat as abs path
//($url[1] !== ':' || ($url[2]!=='\\' && $url[2]!=='/'))
if ($url[0] !== '/' && (strtoupper(substr(PHP_OS, 0, 3)) !== 'WIN' || ($url[0] !== '\\' && $url[1] !== ':'))) {
// For rel path and local acess we ignore the host, and run the path through realpath()
$ret .= realpath($base_path).'/';
}
$ret .= $url;
$ret = preg_replace("/\?(.*)$/", "", $ret);
return $ret;
}
//remote urls with backslash in html/css are not really correct, but lets be genereous
if ( $url[0] === '/' || $url[0] === '\\' ) {
// Absolute path
$ret .= $host . $url;
} else {
// Relative path
//$base_path = $base_path !== "" ? rtrim($base_path, "/\\") . "/" : "";
$ret .= $host . $base_path . $url;
}
return $ret;
}
/**
* parse a full url or pathname and return an array(protocol, host, path,
* file + query + fragment)
*
* @param string $url
* @return array
*/
function explode_url($url) {
$protocol = "";
$host = "";
$path = "";
$file = "";
$arr = parse_url($url);
if ( isset($arr["scheme"]) &&
$arr["scheme"] !== "file" &&
mb_strlen($arr["scheme"]) > 1 ) // Exclude windows drive letters...
{
$protocol = $arr["scheme"] . "://";
if ( isset($arr["user"]) ) {
$host .= $arr["user"];
if ( isset($arr["pass"]) )
$host .= "@" . $arr["pass"];
$host .= ":";
}
if ( isset($arr["host"]) )
$host .= $arr["host"];
if ( isset($arr["port"]) )
$host .= ":" . $arr["port"];
if ( isset($arr["path"]) && $arr["path"] !== "" ) {
// Do we have a trailing slash?
if ( $arr["path"][ mb_strlen($arr["path"]) - 1 ] === "/" ) {
$path = $arr["path"];
$file = "";
} else {
$path = dirname($arr["path"]) . "/";
$file = basename($arr["path"]);
}
}
if ( isset($arr["query"]) )
$file .= "?" . $arr["query"];
if ( isset($arr["fragment"]) )
$file .= "#" . $arr["fragment"];
} else {
$i = mb_strpos($url, "file://");
if ( $i !== false)
$url = mb_substr($url, $i + 7);
$protocol = ""; // "file://"; ? why doesn't this work... It's because of
// network filenames like //COMPU/SHARENAME
$host = ""; // localhost, really
$file = basename($url);
$path = dirname($url);
// Check that the path exists
if ( $path !== false ) {
$path .= '/';
} else {
// generate a url to access the file if no real path found.
$protocol = isset($_SERVER['HTTPS']) && $_SERVER['HTTPS'] === 'on' ? 'https://' : 'http://';
$host = isset($_SERVER["HTTP_HOST"]) ? $_SERVER["HTTP_HOST"] : php_uname("n");
if ( substr($arr["path"], 0, 1) === '/' ) {
$path = dirname($arr["path"]);
} else {
$path = '/' . rtrim(dirname($_SERVER["SCRIPT_NAME"]), '/') . '/' . $arr["path"];
}
}
}
$ret = array($protocol, $host, $path, $file,
"protocol" => $protocol,
"host" => $host,
"path" => $path,
"file" => $file);
return $ret;
}
/**
* converts decimal numbers to roman numerals
*
* @param int $num
* @return string
*/
function dec2roman($num) {
static $ones = array("", "i", "ii", "iii", "iv", "v",
"vi", "vii", "viii", "ix");
static $tens = array("", "x", "xx", "xxx", "xl", "l",
"lx", "lxx", "lxxx", "xc");
static $hund = array("", "c", "cc", "ccc", "cd", "d",
"dc", "dcc", "dccc", "cm");
static $thou = array("", "m", "mm", "mmm");
if ( !is_numeric($num) )
throw new DOMPDF_Exception("dec2roman() requires a numeric argument.");
if ( $num > 4000 || $num < 0 )
return "(out of range)";
$num = strrev((string)$num);
$ret = "";
switch (mb_strlen($num)) {
case 4: $ret .= $thou[$num[3]];
case 3: $ret .= $hund[$num[2]];
case 2: $ret .= $tens[$num[1]];
case 1: $ret .= $ones[$num[0]];
default: break;
}
return $ret;
}
/**
* Determines whether $value is a percentage or not
*
* @param float $value
* @return bool
*/
function is_percent($value) { return false !== mb_strpos($value, "%"); }
/**
* Parses a data URI scheme
* http://en.wikipedia.org/wiki/Data_URI_scheme
* @param string $data_uri The data URI to parse
* @return array The result with charset, mime type and decoded data
*/
function parse_data_uri($data_uri) {
if (!preg_match('/^data:(?P<mime>[a-z0-9\/+-.]+)(;charset=(?P<charset>[a-z0-9-])+)?(?P<base64>;base64)?\,(?P<data>.*)?/i', $data_uri, $match)) {
return false;
}
$match['data'] = rawurldecode($match['data']);
$result = array(
'charset' => $match['charset'] ? $match['charset'] : 'US-ASCII',
'mime' => $match['mime'] ? $match['mime'] : 'text/plain',
'data' => $match['base64'] ? base64_decode($match['data']) : $match['data'],
);
return $result;
}
/**
* mb_string compatibility
*/
if ( !function_exists("mb_strlen") ) {
define('MB_OVERLOAD_MAIL', 1);
define('MB_OVERLOAD_STRING', 2);
define('MB_OVERLOAD_REGEX', 4);
define('MB_CASE_UPPER', 0);
define('MB_CASE_LOWER', 1);
define('MB_CASE_TITLE', 2);
function mb_convert_encoding($data, $to_encoding, $from_encoding = 'UTF-8') {
if (str_replace('-', '', strtolower($to_encoding)) === 'utf8') {
return utf8_encode($data);
} else {
return utf8_decode($data);
}
}
function mb_detect_encoding($data, $encoding_list = array('iso-8859-1'), $strict = false) {
return 'iso-8859-1';
}
function mb_detect_order($encoding_list = array('iso-8859-1')) {
return 'iso-8859-1';
}
function mb_internal_encoding($encoding = null) {
if (isset($encoding)) {
return true;
} else {
return 'iso-8859-1';
}
}
function mb_strlen($str, $encoding = 'iso-8859-1') {
switch (str_replace('-', '', strtolower($encoding))) {
case "utf8": return strlen(utf8_encode($str));
case "8bit": return strlen($str);
default: return strlen(utf8_decode($str));
}
}
function mb_strpos($haystack, $needle, $offset = 0) {
return strpos($haystack, $needle, $offset);
}
function mb_strrpos($haystack, $needle, $offset = 0) {
return strrpos($haystack, $needle, $offset);
}
function mb_strtolower( $str ) {
return strtolower($str);
}
function mb_strtoupper( $str ) {
return strtoupper($str);
}
function mb_substr($string, $start, $length = null, $encoding = 'iso-8859-1') {
if ( is_null($length) )
return substr($string, $start);
else
return substr($string, $start, $length);
}
function mb_substr_count($haystack, $needle, $encoding = 'iso-8859-1') {
return substr_count($haystack, $needle);
}
function mb_encode_numericentity($str, $convmap, $encoding) {
return htmlspecialchars($str);
}
function mb_convert_case($str, $mode = MB_CASE_UPPER, $encoding = array()) {
switch($mode) {
case MB_CASE_UPPER: return mb_strtoupper($str);
case MB_CASE_LOWER: return mb_strtolower($str);
case MB_CASE_TITLE: return ucwords(mb_strtolower($str));
default: return $str;
}
}
function mb_list_encodings() {
return array(
"ISO-8859-1",
"UTF-8",
"8bit",
);
}
}
/**
* Decoder for RLE8 compression in windows bitmaps
* http://msdn.microsoft.com/library/default.asp?url=/library/en-us/gdi/bitmaps_6x0u.asp
*/
function rle8_decode ($str, $width){
$lineWidth = $width + (3 - ($width-1) % 4);
$out = '';
$cnt = strlen($str);
for ($i = 0; $i <$cnt; $i++) {
$o = ord($str[$i]);
switch ($o){
case 0: # ESCAPE
$i++;
switch (ord($str[$i])){
case 0: # NEW LINE
$padCnt = $lineWidth - strlen($out)%$lineWidth;
if ($padCnt<$lineWidth) $out .= str_repeat(chr(0), $padCnt); # pad line
break;
case 1: # END OF FILE
$padCnt = $lineWidth - strlen($out)%$lineWidth;
if ($padCnt<$lineWidth) $out .= str_repeat(chr(0), $padCnt); # pad line
break 3;
case 2: # DELTA
$i += 2;
break;
default: # ABSOLUTE MODE
$num = ord($str[$i]);
for ($j = 0; $j < $num; $j++)
$out .= $str[++$i];
if ($num % 2) $i++;
}
break;
default:
$out .= str_repeat($str[++$i], $o);
}
}
return $out;
}
/**
* Decoder for RLE4 compression in windows bitmaps
* see http://msdn.microsoft.com/library/default.asp?url=/library/en-us/gdi/bitmaps_6x0u.asp
*/
function rle4_decode ($str, $width) {
$w = floor($width/2) + ($width % 2);
$lineWidth = $w + (3 - ( ($width-1) / 2) % 4);
$pixels = array();
$cnt = strlen($str);
for ($i = 0; $i < $cnt; $i++) {
$o = ord($str[$i]);
switch ($o) {
case 0: # ESCAPE
$i++;
switch (ord($str[$i])){
case 0: # NEW LINE
while (count($pixels)%$lineWidth!=0)
$pixels[]=0;
break;
case 1: # END OF FILE
while (count($pixels)%$lineWidth!=0)
$pixels[]=0;
break 3;
case 2: # DELTA
$i += 2;
break;
default: # ABSOLUTE MODE
$num = ord($str[$i]);
for ($j = 0; $j < $num; $j++){
if ($j%2 == 0){
$c = ord($str[++$i]);
$pixels[] = ($c & 240)>>4;
} else
$pixels[] = $c & 15;
}
if ($num % 2) $i++;
}
break;
default:
$c = ord($str[++$i]);
for ($j = 0; $j < $o; $j++)
$pixels[] = ($j%2==0 ? ($c & 240)>>4 : $c & 15);
}
}
$out = '';
if (count($pixels)%2) $pixels[]=0;
$cnt = count($pixels)/2;
for ($i = 0; $i < $cnt; $i++)
$out .= chr(16*$pixels[2*$i] + $pixels[2*$i+1]);
return $out;
}
if ( !function_exists("imagecreatefrombmp") ) {
/**
* Credit goes to mgutt
* http://www.programmierer-forum.de/function-imagecreatefrombmp-welche-variante-laeuft-t143137.htm
* Modified by Fabien Menager to support RGB555 BMP format
*/
function imagecreatefrombmp($filename) {
try {
// version 1.00
if (!($fh = fopen($filename, 'rb'))) {
trigger_error('imagecreatefrombmp: Can not open ' . $filename, E_USER_WARNING);
return false;
}
// read file header
$meta = unpack('vtype/Vfilesize/Vreserved/Voffset', fread($fh, 14));
// check for bitmap
if ($meta['type'] != 19778) {
trigger_error('imagecreatefrombmp: ' . $filename . ' is not a bitmap!', E_USER_WARNING);
return false;
}
// read image header
$meta += unpack('Vheadersize/Vwidth/Vheight/vplanes/vbits/Vcompression/Vimagesize/Vxres/Vyres/Vcolors/Vimportant', fread($fh, 40));
// read additional bitfield header
if ($meta['compression'] == 3) {
$meta += unpack('VrMask/VgMask/VbMask', fread($fh, 12));
}
//pre_r($filename);pre_r($meta);
// set bytes and padding
$meta['bytes'] = $meta['bits'] / 8;
$meta['decal'] = 4 - (4 * (($meta['width'] * $meta['bytes'] / 4)- floor($meta['width'] * $meta['bytes'] / 4)));
if ($meta['decal'] == 4) {
$meta['decal'] = 0;
}
// obtain imagesize
if ($meta['imagesize'] < 1) {
$meta['imagesize'] = $meta['filesize'] - $meta['offset'];
// in rare cases filesize is equal to offset so we need to read physical size
if ($meta['imagesize'] < 1) {
$meta['imagesize'] = @filesize($filename) - $meta['offset'];
if ($meta['imagesize'] < 1) {
trigger_error('imagecreatefrombmp: Can not obtain filesize of ' . $filename . '!', E_USER_WARNING);
return false;
}
}
}
// calculate colors
$meta['colors'] = !$meta['colors'] ? pow(2, $meta['bits']) : $meta['colors'];
// read color palette
$palette = array();
if ($meta['bits'] < 16) {
$palette = unpack('l' . $meta['colors'], fread($fh, $meta['colors'] * 4));
// in rare cases the color value is signed
if ($palette[1] < 0) {
foreach ($palette as $i => $color) {
$palette[$i] = $color + 16777216;
}
}
}
// create gd image
$im = imagecreatetruecolor($meta['width'], $meta['height']);
$data = fread($fh, $meta['imagesize']);
// uncompress data
switch ($meta['compression']) {
case 1: $data = rle8_decode($data, $meta['width']); break;
case 2: $data = rle4_decode($data, $meta['width']); break;
}
$p = 0;
$vide = chr(0);
$y = $meta['height'] - 1;
$error = 'imagecreatefrombmp: ' . $filename . ' has not enough data!';
// loop through the image data beginning with the lower left corner
while ($y >= 0) {
$x = 0;
while ($x < $meta['width']) {
switch ($meta['bits']) {
case 32:
case 24:
if (!($part = substr($data, $p, 3 /*$meta['bytes']*/))) {
trigger_error($error, E_USER_WARNING);
return $im;
}
$color = unpack('V', $part . $vide);
break;
case 16:
if (!($part = substr($data, $p, 2 /*$meta['bytes']*/))) {
trigger_error($error, E_USER_WARNING);
return $im;
}
$color = unpack('v', $part);
if (empty($meta['rMask']) || $meta['rMask'] != 0xf800)
$color[1] = (($color[1] & 0x7c00) >> 7) * 65536 + (($color[1] & 0x03e0) >> 2) * 256 + (($color[1] & 0x001f) << 3); // 555
else
$color[1] = (($color[1] & 0xf800) >> 8) * 65536 + (($color[1] & 0x07e0) >> 3) * 256 + (($color[1] & 0x001f) << 3); // 565
break;
case 8:
$color = unpack('n', $vide . substr($data, $p, 1));
$color[1] = $palette[ $color[1] + 1 ];
break;
case 4:
$color = unpack('n', $vide . substr($data, floor($p), 1));
$color[1] = ($p * 2) % 2 == 0 ? $color[1] >> 4 : $color[1] & 0x0F;
$color[1] = $palette[ $color[1] + 1 ];
break;
case 1:
$color = unpack('n', $vide . substr($data, floor($p), 1));
switch (($p * 8) % 8) {
case 0: $color[1] = $color[1] >> 7; break;
case 1: $color[1] = ($color[1] & 0x40) >> 6; break;
case 2: $color[1] = ($color[1] & 0x20) >> 5; break;
case 3: $color[1] = ($color[1] & 0x10) >> 4; break;
case 4: $color[1] = ($color[1] & 0x8 ) >> 3; break;
case 5: $color[1] = ($color[1] & 0x4 ) >> 2; break;
case 6: $color[1] = ($color[1] & 0x2 ) >> 1; break;
case 7: $color[1] = ($color[1] & 0x1 ); break;
}
$color[1] = $palette[ $color[1] + 1 ];
break;
default:
trigger_error('imagecreatefrombmp: ' . $filename . ' has ' . $meta['bits'] . ' bits and this is not supported!', E_USER_WARNING);
return false;
}
imagesetpixel($im, $x, $y, $color[1]);
$x++;
$p += $meta['bytes'];
}
$y--;
$p += $meta['decal'];
}
fclose($fh);
return $im;
} catch (Exception $e) {var_dump($e);}
}
}
/**
* getimagesize doesn't give a good size for 32bit BMP image v5
*
* @param string $filename
* @return array The same format as getimagesize($filename)
*/
function dompdf_getimagesize($filename) {
$size = getimagesize($filename);
if ( $size[0] == null || $size[1] == null ) {
$data = file_get_contents($filename, null, null, 0, 26);
if ( substr($data, 0, 2) === "BM" ) {
$meta = unpack('vtype/Vfilesize/Vreserved/Voffset/Vheadersize/Vwidth/Vheight', $data);
$size[0] = (int)$meta['width'];
$size[1] = (int)$meta['height'];
}
}
return $size;
}
/**
* Converts a CMYK color to RGB
*
* @param int $c
* @param int $m
* @param int $y
* @param int $k
* @return object
*/
function cmyk_to_rgb($c, $m = null, $y = null, $k = null) {
if (is_array($c)) {
list($c, $m, $y, $k) = $c;
}
$c *= 255;
$m *= 255;
$y *= 255;
$k *= 255;
$r = (1 - round(2.55 * ($c+$k))) ;
$g = (1 - round(2.55 * ($m+$k))) ;
$b = (1 - round(2.55 * ($y+$k))) ;
if($r<0) $r = 0;
if($g<0) $g = 0;
if($b<0) $b = 0;
return array(
$r, $g, $b,
"r" => $r, "g" => $g, "b" => $b
);
}
function unichr($c) {
if ($c <= 0x7F) {
return chr($c);
} else if ($c <= 0x7FF) {
return chr(0xC0 | $c >> 6) . chr(0x80 | $c & 0x3F);
} else if ($c <= 0xFFFF) {
return chr(0xE0 | $c >> 12) . chr(0x80 | $c >> 6 & 0x3F)
. chr(0x80 | $c & 0x3F);
} else if ($c <= 0x10FFFF) {
return chr(0xF0 | $c >> 18) . chr(0x80 | $c >> 12 & 0x3F)
. chr(0x80 | $c >> 6 & 0x3F)
. chr(0x80 | $c & 0x3F);
}
return false;
}
if ( !function_exists("date_default_timezone_get") ) {
function date_default_timezone_get() {
return "";
}
function date_default_timezone_set($timezone_identifier) {
return true;
}
}
/**
* Stores warnings in an array for display later
*
* This function allows warnings generated by the DomDocument parser
* and CSS loader ({@link Stylesheet}) to be captured and displayed
* later. Without this function, errors are displayed immediately and
* PDF streaming is impossible.
*
* @see http://www.php.net/manual/en/function.set-error_handler.php
*
* @param int $errno
* @param string $errstr
* @param string $errfile
* @param string $errline
*/
function record_warnings($errno, $errstr, $errfile, $errline) {
if ( !($errno & (E_WARNING | E_NOTICE | E_USER_NOTICE | E_USER_WARNING )) ) // Not a warning or notice
throw new DOMPDF_Exception($errstr . " $errno");
global $_dompdf_warnings;
global $_dompdf_show_warnings;
if ( $_dompdf_show_warnings )
echo $errstr . "\n";
$_dompdf_warnings[] = $errstr;
}
/**
* Print a useful backtrace
*/
function bt() {
if ( php_sapi_name() !== "cli")
echo("<pre>");
$bt = debug_backtrace();
array_shift($bt); // remove actual bt() call
echo "\n";
$i = 0;
foreach ($bt as $call) {
$file = basename($call["file"]) . " (" . $call["line"] . ")";
if ( isset($call["class"]) ) {
$func = $call["class"] . "->" . $call["function"] . "()";
} else {
$func = $call["function"] . "()";
}
echo "#" . str_pad($i, 2, " ", STR_PAD_RIGHT) . ": " . str_pad($file.":", 42) . " $func\n";
$i++;
}
echo "\n";
if ( php_sapi_name() !== "cli")
echo("</pre>");
}
/**
* Print debug messages
*
* @param string $type The type of debug messages to print
*/
function dompdf_debug($type, $msg) {
global $_DOMPDF_DEBUG_TYPES, $_dompdf_show_warnings, $_dompdf_debug;
if ( isset($_DOMPDF_DEBUG_TYPES[$type]) && ($_dompdf_show_warnings || $_dompdf_debug) ) {
$arr = debug_backtrace();
echo basename($arr[0]["file"]) . " (" . $arr[0]["line"] ."): " . $arr[1]["function"] . ": ";
pre_r($msg);
}
}
if ( !function_exists("print_memusage") ) {
/**
* Dump memory usage
*/
function print_memusage() {
global $memusage;
echo ("Memory Usage\n");
$prev = 0;
$initial = reset($memusage);
echo (str_pad("Initial:", 40) . $initial . "\n\n");
foreach ($memusage as $key=>$mem) {
$mem -= $initial;
echo (str_pad("$key:" , 40));
echo (str_pad("$mem", 12) . "(diff: " . ($mem - $prev) . ")\n");
$prev = $mem;
}
echo ("\n" . str_pad("Total:", 40) . memory_get_usage()) . "\n";
}
}
if ( !function_exists("enable_mem_profile") ) {
/**
* Initialize memory profiling code
*/
function enable_mem_profile() {
global $memusage;
$memusage = array("Startup" => memory_get_usage());
register_shutdown_function("print_memusage");
}
}
if ( !function_exists("mark_memusage") ) {
/**
* Record the current memory usage
*
* @param string $location a meaningful location
*/
function mark_memusage($location) {
global $memusage;
if ( isset($memusage) )
$memusage[$location] = memory_get_usage();
}
}
if ( !function_exists('sys_get_temp_dir')) {
/**
* Find the current system temporary directory
*
* @link http://us.php.net/manual/en/function.sys-get-temp-dir.php#85261
*/
function sys_get_temp_dir() {
if (!empty($_ENV['TMP'])) { return realpath($_ENV['TMP']); }
if (!empty($_ENV['TMPDIR'])) { return realpath( $_ENV['TMPDIR']); }
if (!empty($_ENV['TEMP'])) { return realpath( $_ENV['TEMP']); }
$tempfile=tempnam(uniqid(rand(),TRUE),'');
if (file_exists($tempfile)) {
unlink($tempfile);
return realpath(dirname($tempfile));
}
}
}
if ( function_exists("memory_get_peak_usage") ) {
function DOMPDF_memory_usage(){
return memory_get_peak_usage(true);
}
}
else if ( function_exists("memory_get_peak_usage") ) {
function DOMPDF_memory_usage(){
return memory_get_usage(true);
}
}
else {
function DOMPDF_memory_usage(){
return "N/A";
}
}
/**
* Affect null to the unused objects
* @param unknown_type $object
*/
function clear_object(&$object) {
if ( is_object($object) ) {
foreach (array_keys((array)$object) as $key) {
clear_object($property);
}
foreach(get_class_vars(get_class($object)) as $property => $value) {
clear_object($property);
}
}
$object = null;
unset($object);
}
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