PHP phpthumb_functions::SafeExec方法代码示例

 function ImageMagickThumbnailToGD()
 {
     // http://www.imagemagick.org/script/command-line-options.php
     $this->useRawIMoutput = true;
     if (phpthumb_functions::gd_version()) {
         // if GD is not available, must use whatever ImageMagick can output
         // $UnAllowedParameters contains options that can only be processed in GD, not ImageMagick
         // note: 'fltr' *may* need to be processed by GD, but we'll check that in more detail below
         $UnAllowedParameters = array('xto', 'ar', 'bg', 'bc');
         // 'ra' may be part of this list, if not a multiple of 90�
         foreach ($UnAllowedParameters as $parameter) {
             if (isset($this->{$parameter})) {
                 $this->DebugMessage('$this->useRawIMoutput=false because "' . $parameter . '" is set', __FILE__, __LINE__);
                 $this->useRawIMoutput = false;
                 break;
             }
         }
     }
     $this->DebugMessage('$this->useRawIMoutput=' . ($this->useRawIMoutput ? 'true' : 'false') . ' after checking $UnAllowedParameters', __FILE__, __LINE__);
     $outputFormat = $this->thumbnailFormat;
     if (phpthumb_functions::gd_version()) {
         if ($this->useRawIMoutput) {
             switch ($this->thumbnailFormat) {
                 case 'gif':
                     $ImageCreateFunction = 'ImageCreateFromGIF';
                     $this->is_alpha = true;
                     break;
                 case 'png':
                     $ImageCreateFunction = 'ImageCreateFromPNG';
                     $this->is_alpha = true;
                     break;
                 case 'jpg':
                 case 'jpeg':
                     $ImageCreateFunction = 'ImageCreateFromJPEG';
                     break;
                 default:
                     $this->DebugMessage('Forcing output to PNG because $this->thumbnailFormat (' . $this->thumbnailFormat . ' is not a GD-supported format)', __FILE__, __LINE__);
                     $outputFormat = 'png';
                     $ImageCreateFunction = 'ImageCreateFromPNG';
                     $this->is_alpha = true;
                     $this->useRawIMoutput = false;
                     break;
             }
             if (!function_exists(@$ImageCreateFunction)) {
                 // ImageMagickThumbnailToGD() depends on ImageCreateFromPNG/ImageCreateFromGIF
                 //$this->DebugMessage('ImageMagickThumbnailToGD() aborting because '.@$ImageCreateFunction.'() is not available', __FILE__, __LINE__);
                 $this->useRawIMoutput = true;
                 //return false;
             }
         } else {
             $outputFormat = 'png';
             $ImageCreateFunction = 'ImageCreateFromPNG';
             $this->is_alpha = true;
             $this->useRawIMoutput = false;
         }
     }
     // http://freealter.org/doc_distrib/ImageMagick-5.1.1/www/convert.html
     if (!$this->sourceFilename && $this->rawImageData) {
         $this->SourceDataToTempFile();
     }
     if (!$this->sourceFilename) {
         $this->DebugMessage('ImageMagickThumbnailToGD() aborting because $this->sourceFilename is empty', __FILE__, __LINE__);
         $this->useRawIMoutput = false;
         return false;
     }
     if ($this->issafemode) {
         $this->DebugMessage('ImageMagickThumbnailToGD() aborting because safe_mode is enabled', __FILE__, __LINE__);
         $this->useRawIMoutput = false;
         return false;
     }
     // TO BE FIXED
     //if (true) {
     //	$this->DebugMessage('ImageMagickThumbnailToGD() aborting it is broken right now', __FILE__, __LINE__);
     //	$this->useRawIMoutput = false;
     //	return false;
     //}
     $commandline = $this->ImageMagickCommandlineBase();
     if ($commandline) {
         if ($IMtempfilename = $this->phpThumb_tempnam()) {
             $IMtempfilename = realpath($IMtempfilename);
             $IMuseExplicitImageOutputDimensions = false;
             if ($this->ImageMagickSwitchAvailable('thumbnail') && $this->config_imagemagick_use_thumbnail) {
                 $IMresizeParameter = 'thumbnail';
             } else {
                 $IMresizeParameter = 'resize';
                 // some (older? around 2002) versions of IM won't accept "-resize 100x" but require "-resize 100x100"
                 $commandline_test = $this->ImageMagickCommandlineBase() . ' logo: -resize 1x ' . escapeshellarg($IMtempfilename) . ' 2>&1';
                 $IMresult_test = phpthumb_functions::SafeExec($commandline_test);
                 $IMuseExplicitImageOutputDimensions = preg_match('#image dimensions are zero#i', $IMresult_test);
                 $this->DebugMessage('IMuseExplicitImageOutputDimensions = ' . intval($IMuseExplicitImageOutputDimensions), __FILE__, __LINE__);
                 if ($fp_im_temp = @fopen($IMtempfilename, 'wb')) {
                     // erase temp image so ImageMagick logo doesn't get output if other processing fails
                     fclose($fp_im_temp);
                 }
             }
             if (!is_null($this->dpi) && $this->ImageMagickSwitchAvailable('density')) {
                 // for raster source formats only (WMF, PDF, etc)
                 $commandline .= ' -density ' . escapeshellarg($this->dpi);
             }
             ob_start();
//.........这里部分代码省略.........

 function phpThumbDebug()
 {
     if ($this->config_disable_debug) {
         return $this->ErrorImage('phpThumbDebug disabled');
     }
     $FunctionsExistance = array('exif_thumbnail', 'gd_info', 'image_type_to_mime_type', 'ImageCopyResampled', 'ImageCopyResized', 'ImageCreate', 'ImageCreateFromString', 'ImageCreateTrueColor', 'ImageIsTrueColor', 'ImageRotate', 'ImageTypes', 'version_compare', 'ImageCreateFromGIF', 'ImageCreateFromJPEG', 'ImageCreateFromPNG', 'ImageCreateFromWBMP', 'ImageCreateFromXBM', 'ImageCreateFromXPM', 'ImageCreateFromString', 'ImageCreateFromGD', 'ImageCreateFromGD2', 'ImageCreateFromGD2Part', 'ImageJPEG', 'ImageGIF', 'ImagePNG', 'ImageWBMP');
     $ParameterNames = array('src', 'new', 'w', 'h', 'f', 'q', 'sx', 'sy', 'sw', 'sh', 'far', 'bg', 'bc', 'file', 'goto', 'err', 'xto', 'ra', 'ar', 'aoe', 'iar', 'maxb');
     $OtherVariableNames = array('phpThumbDebug', 'thumbnailQuality', 'thumbnailFormat', 'gdimg_output', 'gdimg_source', 'sourceFilename', 'source_width', 'source_height', 'thumbnailCropX', 'thumbnailCropY', 'thumbnailCropW', 'thumbnailCropH', 'exif_thumbnail_width', 'exif_thumbnail_height', 'exif_thumbnail_type', 'thumbnail_width', 'thumbnail_height', 'thumbnail_image_width', 'thumbnail_image_height');
     $DebugOutput = array();
     $DebugOutput[] = 'phpThumb() version          = ' . $this->phpthumb_version;
     $DebugOutput[] = 'phpversion()                = ' . @phpversion();
     $DebugOutput[] = 'PHP_OS                      = ' . PHP_OS;
     $DebugOutput[] = '__FILE__                    = ' . __FILE__;
     $DebugOutput[] = 'realpath(.)                 = ' . @realpath('.');
     $DebugOutput[] = '$_SERVER[PHP_SELF]          = ' . @$_SERVER['PHP_SELF'];
     $DebugOutput[] = '$_SERVER[HTTP_REFERER]      = ' . @$_SERVER['HTTP_REFERER'];
     $DebugOutput[] = '$_SERVER[QUERY_STRING]      = ' . @$_SERVER['QUERY_STRING'];
     $DebugOutput[] = '$_SERVER[PATH_INFO]         = ' . @$_SERVER['PATH_INFO'];
     $DebugOutput[] = '$_SERVER[DOCUMENT_ROOT]     = ' . @$_SERVER['DOCUMENT_ROOT'];
     $DebugOutput[] = 'getenv(DOCUMENT_ROOT)       = ' . @getenv('DOCUMENT_ROOT');
     $DebugOutput[] = '';
     $DebugOutput[] = 'get_magic_quotes_gpc()      = ' . $this->phpThumbDebugVarDump(@get_magic_quotes_gpc());
     $DebugOutput[] = 'get_magic_quotes_runtime()  = ' . $this->phpThumbDebugVarDump(@get_magic_quotes_runtime());
     $DebugOutput[] = 'error_reporting()           = ' . $this->phpThumbDebugVarDump(error_reporting());
     $DebugOutput[] = 'ini_get(error_reporting)    = ' . $this->phpThumbDebugVarDump(@ini_get('error_reporting'));
     $DebugOutput[] = 'ini_get(display_errors)     = ' . $this->phpThumbDebugVarDump(@ini_get('display_errors'));
     $DebugOutput[] = 'ini_get(allow_url_fopen)    = ' . $this->phpThumbDebugVarDump(@ini_get('allow_url_fopen'));
     $DebugOutput[] = 'ini_get(disable_functions)  = ' . $this->phpThumbDebugVarDump(@ini_get('disable_functions'));
     $DebugOutput[] = 'ini_get(safe_mode)          = ' . $this->phpThumbDebugVarDump(@ini_get('safe_mode'));
     $DebugOutput[] = 'ini_get(open_basedir)       = ' . $this->phpThumbDebugVarDump(@ini_get('open_basedir'));
     $DebugOutput[] = 'ini_get(memory_limit)       = ' . $this->phpThumbDebugVarDump(@ini_get('memory_limit'));
     $DebugOutput[] = 'ini_get(max_execution_time) = ' . $this->phpThumbDebugVarDump(@ini_get('max_execution_time'));
     $DebugOutput[] = 'get_cfg_var(memory_limit)   = ' . $this->phpThumbDebugVarDump(@get_cfg_var('memory_limit'));
     $DebugOutput[] = 'memory_get_usage()          = ' . (function_exists('memory_get_usage') ? $this->phpThumbDebugVarDump(@memory_get_usage()) : 'n/a');
     $DebugOutput[] = '';
     $DebugOutput[] = '$this->config_prefer_imagemagick            = ' . $this->phpThumbDebugVarDump($this->config_prefer_imagemagick);
     $DebugOutput[] = '$this->config_imagemagick_path              = ' . $this->phpThumbDebugVarDump($this->config_imagemagick_path);
     $DebugOutput[] = 'SafeExec(which convert)                     = ' . trim(phpthumb_functions::SafeExec('which convert'));
     $IMpathUsed = $this->config_imagemagick_path ? $this->config_imagemagick_path : trim(phpthumb_functions::SafeExec('which convert'));
     $DebugOutput[] = '[actual ImageMagick path used]              = ' . $this->phpThumbDebugVarDump($IMpathUsed);
     $DebugOutput[] = 'file_exists([actual ImageMagick path used]) = ' . $this->phpThumbDebugVarDump(file_exists($IMpathUsed));
     $DebugOutput[] = 'ImageMagickVersion()                        = ' . $this->ImageMagickVersion();
     $DebugOutput[] = '';
     $DebugOutput[] = '$this->config_cache_directory               = ' . $this->phpThumbDebugVarDump($this->config_cache_directory);
     $DebugOutput[] = '$this->config_cache_disable_warning         = ' . $this->phpThumbDebugVarDump($this->config_cache_disable_warning);
     $DebugOutput[] = '$this->config_cache_maxage                  = ' . $this->phpThumbDebugVarDump($this->config_cache_maxage);
     $DebugOutput[] = '$this->config_cache_maxsize                 = ' . $this->phpThumbDebugVarDump($this->config_cache_maxsize);
     $DebugOutput[] = '$this->config_cache_maxfiles                = ' . $this->phpThumbDebugVarDump($this->config_cache_maxfiles);
     $DebugOutput[] = '$this->cache_filename                       = ' . $this->phpThumbDebugVarDump($this->cache_filename);
     $DebugOutput[] = 'is_readable($this->config_cache_directory)  = ' . $this->phpThumbDebugVarDump(is_readable($this->config_cache_directory));
     $DebugOutput[] = 'is_writable($this->config_cache_directory)  = ' . $this->phpThumbDebugVarDump(is_writable($this->config_cache_directory));
     $DebugOutput[] = 'is_readable($this->cache_filename)          = ' . $this->phpThumbDebugVarDump(is_readable($this->cache_filename));
     $DebugOutput[] = 'is_writable($this->cache_filename)          = ' . (file_exists($this->cache_filename) ? $this->phpThumbDebugVarDump(is_writable($this->cache_filename)) : 'n/a');
     $DebugOutput[] = '';
     $DebugOutput[] = '$this->config_document_root                 = ' . $this->phpThumbDebugVarDump($this->config_document_root);
     $DebugOutput[] = '$this->config_temp_directory                = ' . $this->phpThumbDebugVarDump($this->config_temp_directory);
     $DebugOutput[] = '';
     $DebugOutput[] = '$this->config_output_format                 = ' . $this->phpThumbDebugVarDump($this->config_output_format);
     $DebugOutput[] = '$this->config_output_maxwidth               = ' . $this->phpThumbDebugVarDump($this->config_output_maxwidth);
     $DebugOutput[] = '$this->config_output_maxheight              = ' . $this->phpThumbDebugVarDump($this->config_output_maxheight);
     $DebugOutput[] = '';
     $DebugOutput[] = '$this->config_error_message_image_default   = ' . $this->phpThumbDebugVarDump($this->config_error_message_image_default);
     $DebugOutput[] = '$this->config_error_bgcolor                 = ' . $this->phpThumbDebugVarDump($this->config_error_bgcolor);
     $DebugOutput[] = '$this->config_error_textcolor               = ' . $this->phpThumbDebugVarDump($this->config_error_textcolor);
     $DebugOutput[] = '$this->config_error_fontsize                = ' . $this->phpThumbDebugVarDump($this->config_error_fontsize);
     $DebugOutput[] = '$this->config_error_die_on_error            = ' . $this->phpThumbDebugVarDump($this->config_error_die_on_error);
     $DebugOutput[] = '$this->config_error_silent_die_on_error     = ' . $this->phpThumbDebugVarDump($this->config_error_silent_die_on_error);
     $DebugOutput[] = '$this->config_error_die_on_source_failure   = ' . $this->phpThumbDebugVarDump($this->config_error_die_on_source_failure);
     $DebugOutput[] = '';
     $DebugOutput[] = '$this->config_nohotlink_enabled             = ' . $this->phpThumbDebugVarDump($this->config_nohotlink_enabled);
     $DebugOutput[] = '$this->config_nohotlink_valid_domains       = ' . $this->phpThumbDebugVarDump($this->config_nohotlink_valid_domains);
     $DebugOutput[] = '$this->config_nohotlink_erase_image         = ' . $this->phpThumbDebugVarDump($this->config_nohotlink_erase_image);
     $DebugOutput[] = '$this->config_nohotlink_text_message        = ' . $this->phpThumbDebugVarDump($this->config_nohotlink_text_message);
     $DebugOutput[] = '';
     $DebugOutput[] = '$this->config_nooffsitelink_enabled         = ' . $this->phpThumbDebugVarDump($this->config_nooffsitelink_enabled);
     $DebugOutput[] = '$this->config_nooffsitelink_valid_domains   = ' . $this->phpThumbDebugVarDump($this->config_nooffsitelink_valid_domains);
     $DebugOutput[] = '$this->config_nooffsitelink_require_refer   = ' . $this->phpThumbDebugVarDump($this->config_nooffsitelink_require_refer);
     $DebugOutput[] = '$this->config_nooffsitelink_erase_image     = ' . $this->phpThumbDebugVarDump($this->config_nooffsitelink_erase_image);
     $DebugOutput[] = '$this->config_nooffsitelink_text_message    = ' . $this->phpThumbDebugVarDump($this->config_nooffsitelink_text_message);
     $DebugOutput[] = '';
     $DebugOutput[] = '$this->config_high_security_enabled         = ' . $this->phpThumbDebugVarDump($this->config_high_security_enabled);
     $DebugOutput[] = '$this->config_allow_src_above_docroot       = ' . $this->phpThumbDebugVarDump($this->config_allow_src_above_docroot);
     $DebugOutput[] = '$this->config_allow_src_above_phpthumb      = ' . $this->phpThumbDebugVarDump($this->config_allow_src_above_phpthumb);
     $DebugOutput[] = '$this->config_allow_parameter_file          = ' . $this->phpThumbDebugVarDump($this->config_allow_parameter_file);
     $DebugOutput[] = '$this->config_allow_parameter_goto          = ' . $this->phpThumbDebugVarDump($this->config_allow_parameter_goto);
     $DebugOutput[] = '';
     $DebugOutput[] = '$this->config_max_source_pixels             = ' . $this->phpThumbDebugVarDump($this->config_max_source_pixels);
     $DebugOutput[] = '$this->config_use_exif_thumbnail_for_speed  = ' . $this->phpThumbDebugVarDump($this->config_use_exif_thumbnail_for_speed);
     $DebugOutput[] = '$this->config_border_hexcolor               = ' . $this->phpThumbDebugVarDump($this->config_border_hexcolor);
     $DebugOutput[] = '$this->config_background_hexcolor           = ' . $this->phpThumbDebugVarDump($this->config_background_hexcolor);
     $DebugOutput[] = '$this->config_ttf_directory                 = ' . $this->phpThumbDebugVarDump($this->config_ttf_directory);
     $DebugOutput[] = '';
     foreach ($OtherVariableNames as $varname) {
         $value = $this->{$varname};
         $DebugOutput[] = '$this->' . str_pad($varname, 27, ' ', STR_PAD_RIGHT) . ' = ' . $this->phpThumbDebugVarDump($value);
     }
     $DebugOutput[] = 'strlen($this->rawImageData)        = ' . strlen(@$this->rawImageData);
     $DebugOutput[] = 'strlen($this->exif_thumbnail_data) = ' . strlen(@$this->exif_thumbnail_data);
     $DebugOutput[] = '';
     foreach ($ParameterNames as $varname) {
//.........这里部分代码省略.........

 function ImageMagickThumbnailToGD()
 {
     // http://www.imagemagick.org/script/command-line-options.php
     if (ini_get('safe_mode')) {
         $this->DebugMessage('ImageMagickThumbnailToGD() aborting because safe_mode is enabled', __FILE__, __LINE__);
         $this->useRawIMoutput = false;
         return false;
     }
     $this->useRawIMoutput = true;
     if (phpthumb_functions::gd_version()) {
         // if GD is not available, must use whatever ImageMagick can output
         // $UnAllowedParameters contains options that can only be processed in GD, not ImageMagick
         // note: 'fltr' *may* need to be processed by GD, but we'll check that in more detail below
         $UnAllowedParameters = array('xto', 'ar', 'bg', 'bc');
         // 'ra' may be part of this list, if not a multiple of 90°
         foreach ($UnAllowedParameters as $parameter) {
             if (isset($this->{$parameter})) {
                 $this->DebugMessage('$this->useRawIMoutput=false because "' . $parameter . '" is set', __FILE__, __LINE__);
                 $this->useRawIMoutput = false;
                 break;
             }
         }
     }
     $this->DebugMessage('$this->useRawIMoutput=' . ($this->useRawIMoutput ? 'true' : 'false') . ' after checking $UnAllowedParameters', __FILE__, __LINE__);
     $outputFormat = $this->thumbnailFormat;
     if (phpthumb_functions::gd_version()) {
         if ($this->useRawIMoutput) {
             switch ($this->thumbnailFormat) {
                 case 'gif':
                     $ImageCreateFunction = 'ImageCreateFromGIF';
                     $this->is_alpha = true;
                     break;
                 case 'png':
                     $ImageCreateFunction = 'ImageCreateFromPNG';
                     $this->is_alpha = true;
                     break;
                 case 'jpg':
                 case 'jpeg':
                     $ImageCreateFunction = 'ImageCreateFromJPEG';
                     break;
                 default:
                     $this->DebugMessage('Forcing output to PNG because $this->thumbnailFormat (' . $this->thumbnailFormat . ' is not a GD-supported format)', __FILE__, __LINE__);
                     $outputFormat = 'png';
                     $ImageCreateFunction = 'ImageCreateFromPNG';
                     $this->is_alpha = true;
                     $this->useRawIMoutput = false;
                     break;
             }
             if (!function_exists(@$ImageCreateFunction)) {
                 // ImageMagickThumbnailToGD() depends on ImageCreateFromPNG/ImageCreateFromGIF
                 //$this->DebugMessage('ImageMagickThumbnailToGD() aborting because '.@$ImageCreateFunction.'() is not available', __FILE__, __LINE__);
                 $this->useRawIMoutput = true;
                 //return false;
             }
         } else {
             $outputFormat = 'png';
             $ImageCreateFunction = 'ImageCreateFromPNG';
             $this->is_alpha = true;
             $this->useRawIMoutput = false;
         }
     }
     if (!$this->sourceFilename && $this->rawImageData) {
         if ($IMtempSourceFilename = $this->phpThumb_tempnam()) {
             $IMtempSourceFilename = realpath($IMtempSourceFilename);
             $this->sourceFilename = $IMtempSourceFilename;
             $this->DebugMessage('ImageMagickThumbnailToGD() setting $this->sourceFilename to "' . $IMtempSourceFilename . '" from $this->rawImageData (' . strlen($this->rawImageData) . ' bytes)', __FILE__, __LINE__);
         }
     }
     if (!$this->sourceFilename) {
         $this->DebugMessage('ImageMagickThumbnailToGD() aborting because $this->sourceFilename is empty', __FILE__, __LINE__);
         $this->useRawIMoutput = false;
         return false;
     }
     $commandline = $this->ImageMagickCommandlineBase();
     if ($commandline) {
         if ($IMtempfilename = $this->phpThumb_tempnam()) {
             $IMtempfilename = realpath($IMtempfilename);
             $IMuseExplicitImageOutputDimensions = false;
             if ($this->ImageMagickSwitchAvailable('thumbnail') && $this->config_imagemagick_use_thumbnail) {
                 $IMresizeParameter = 'thumbnail';
             } else {
                 $IMresizeParameter = 'resize';
                 // some (older? around 2002) versions of IM won't accept "-resize 100x" but require "-resize 100x100"
                 $commandline_test = $this->ImageMagickCommandlineBase() . ' logo: -resize 1x "' . $IMtempfilename . '" 2>&1';
                 $IMresult_test = phpthumb_functions::SafeExec($commandline_test);
                 $IMuseExplicitImageOutputDimensions = preg_match('/image dimensions are zero/i', $IMresult_test);
                 $this->DebugMessage('IMuseExplicitImageOutputDimensions = ' . intval($IMuseExplicitImageOutputDimensions), __FILE__, __LINE__);
                 if ($fp_im_temp = @fopen($IMtempfilename, 'wb')) {
                     // erase temp image so ImageMagick logo doesn't get output if other processing fails
                     fclose($fp_im_temp);
                 }
             }
             if (!is_null($this->dpi) && $this->ImageMagickSwitchAvailable('density')) {
                 // for raster source formats only (WMF, PDF, etc)
                 $commandline .= ' -density ' . $this->dpi;
             }
             ob_start();
             $getimagesize = GetImageSize($this->sourceFilename);
             $GetImageSizeError = ob_get_contents();
             ob_end_clean();
//.........这里部分代码省略.........

//.........这里部分代码省略.........
                                     }
                                     unset($this->fltr[$filterkey]);
                                 }
                             }
                         }
                         break;
                     case 'crop':
                         break;
                     case 'sblr':
                         break;
                     case 'mean':
                         break;
                     case 'smth':
                         break;
                     case 'bvl':
                         break;
                     case 'wmi':
                         break;
                     case 'wmt':
                         break;
                     case 'over':
                         break;
                     case 'wb':
                         break;
                     case 'hist':
                         break;
                     case 'fram':
                         break;
                     case 'drop':
                         break;
                     case 'mask':
                         break;
                     case 'elip':
                         break;
                     case 'ric':
                         break;
                 }
                 if (!isset($this->fltr[$filterkey])) {
                     $this->DebugMessage('Processed $this->fltr[' . $filterkey . '] (' . $filtercommand . ') with ImageMagick', __FILE__, __LINE__);
                 } else {
                     $this->DebugMessage('Skipping $this->fltr[' . $filterkey . '] (' . $filtercommand . ') with ImageMagick', __FILE__, __LINE__);
                 }
             }
             $this->DebugMessage('Remaining $this->fltr after ImageMagick: (' . $this->phpThumbDebugVarDump($this->fltr) . ')', __FILE__, __LINE__);
             if (eregi('jpe?g', $outputFormat) && $this->q) {
                 if ($this->ImageMagickSwitchAvailable(array('quality', 'interlace'))) {
                     $commandline .= ' -quality ' . $this->thumbnailQuality;
                     if ($this->config_output_interlace) {
                         // causes weird things with animated GIF... leave for JPEG only
                         $commandline .= ' -interlace line ';
                         // Use Line or Plane to create an interlaced PNG or GIF or progressive JPEG image
                     }
                 }
             }
             $commandline .= ' "' . str_replace('/', DIRECTORY_SEPARATOR, $this->sourceFilename) . ($outputFormat == 'gif' ? '' : '[0]') . '"';
             // [0] means first frame of (GIF) animation, can be ignored
             $commandline .= ' ' . $outputFormat . ':"' . $IMtempfilename . '"';
             $commandline .= ' 2>&1';
             $this->DebugMessage('ImageMagick called as (' . $commandline . ')', __FILE__, __LINE__);
             $IMresult = phpthumb_functions::SafeExec($commandline);
             //echo '<pre>';
             //var_dump($commandline);
             ////var_dump($ImageCreateFunction);
             ////var_dump($IMresult);
             //echo '</pre>';
             //exit;
             clearstatcache();
             if (!@file_exists($IMtempfilename) || !@filesize($IMtempfilename)) {
                 $this->DebugMessage('ImageMagick failed with message (' . $IMresult . ')', __FILE__, __LINE__);
                 if ($this->iswindows && !$IMresult) {
                     $this->DebugMessage('Check to make sure that PHP has read+write permissions to "' . dirname($IMtempfilename) . '"', __FILE__, __LINE__);
                 }
             } else {
                 $this->IMresizedData = file_get_contents($IMtempfilename);
                 if (function_exists(@$ImageCreateFunction) && ($this->gdimg_source = @$ImageCreateFunction($IMtempfilename))) {
                     //header('Content-Type: image/png');
                     //ImageSaveAlpha($this->gdimg_source, true);
                     //ImagePNG($this->gdimg_source);
                     //exit;
                     $this->source_width = ImageSX($this->gdimg_source);
                     $this->source_height = ImageSY($this->gdimg_source);
                     $this->DebugMessage('ImageMagickThumbnailToGD::' . $ImageCreateFunction . '() succeeded, $this->gdimg_source is now (' . $this->source_width . 'x' . $this->source_height . ')', __FILE__, __LINE__);
                     $this->DebugMessage('ImageMagickThumbnailToGD() returning $IMresizedData (' . strlen($this->IMresizedData) . ' bytes)', __FILE__, __LINE__);
                 } else {
                     $this->useRawIMoutput = true;
                     $this->DebugMessage('$this->useRawIMoutput set to TRUE because ' . @$ImageCreateFunction . '(' . $IMtempfilename . ') failed', __FILE__, __LINE__);
                 }
                 @unlink($IMtempfilename);
                 return true;
             }
             unlink($IMtempfilename);
         } else {
             $this->DebugMessage('ImageMagickThumbnailToGD() aborting, phpThumb_tempnam() failed', __FILE__, __LINE__);
         }
     } else {
         $this->DebugMessage('ImageMagickThumbnailToGD() aborting because ImageMagickCommandlineBase() failed', __FILE__, __LINE__);
     }
     $this->useRawIMoutput = false;
     return false;
 }