+++ /dev/null
-<?php
-//////////////////////////////////////////////////////////////
-/// phpThumb() by James Heinrich <info@silisoftware.com> //
-// available at http://phpthumb.sourceforge.net ///
-//////////////////////////////////////////////////////////////
-/// //
-// phpthumb.functions.php - general support functions //
-// ///
-//////////////////////////////////////////////////////////////
-
-class phpthumb_functions {
-
- function user_function_exists($functionname) {
- if (function_exists('get_defined_functions')) {
- static $get_defined_functions = array();
- if (empty($get_defined_functions)) {
- $get_defined_functions = get_defined_functions();
- }
- return in_array(strtolower($functionname), $get_defined_functions['user']);
- }
- return function_exists($functionname);
- }
-
-
- function builtin_function_exists($functionname) {
- if (function_exists('get_defined_functions')) {
- static $get_defined_functions = array();
- if (empty($get_defined_functions)) {
- $get_defined_functions = get_defined_functions();
- }
- return in_array(strtolower($functionname), $get_defined_functions['internal']);
- }
- return function_exists($functionname);
- }
-
-
- function version_compare_replacement_sub($version1, $version2, $operator='') {
- // If you specify the third optional operator argument, you can test for a particular relationship.
- // The possible operators are: <, lt, <=, le, >, gt, >=, ge, ==, =, eq, !=, <>, ne respectively.
- // Using this argument, the function will return 1 if the relationship is the one specified by the operator, 0 otherwise.
-
- // If a part contains special version strings these are handled in the following order: dev < (alpha = a) < (beta = b) < RC < pl
- static $versiontype_lookup = array();
- if (empty($versiontype_lookup)) {
- $versiontype_lookup['dev'] = 10001;
- $versiontype_lookup['a'] = 10002;
- $versiontype_lookup['alpha'] = 10002;
- $versiontype_lookup['b'] = 10003;
- $versiontype_lookup['beta'] = 10003;
- $versiontype_lookup['RC'] = 10004;
- $versiontype_lookup['pl'] = 10005;
- }
- if (isset($versiontype_lookup[$version1])) {
- $version1 = $versiontype_lookup[$version1];
- }
- if (isset($versiontype_lookup[$version2])) {
- $version2 = $versiontype_lookup[$version2];
- }
-
- switch ($operator) {
- case '<':
- case 'lt':
- return intval($version1 < $version2);
- break;
- case '<=':
- case 'le':
- return intval($version1 <= $version2);
- break;
- case '>':
- case 'gt':
- return intval($version1 > $version2);
- break;
- case '>=':
- case 'ge':
- return intval($version1 >= $version2);
- break;
- case '==':
- case '=':
- case 'eq':
- return intval($version1 == $version2);
- break;
- case '!=':
- case '<>':
- case 'ne':
- return intval($version1 != $version2);
- break;
- }
- if ($version1 == $version2) {
- return 0;
- } elseif ($version1 < $version2) {
- return -1;
- }
- return 1;
- }
-
-
- function version_compare_replacement($version1, $version2, $operator='') {
- if (function_exists('version_compare')) {
- // built into PHP v4.1.0+
- return version_compare($version1, $version2, $operator);
- }
-
- // The function first replaces _, - and + with a dot . in the version strings
- $version1 = strtr($version1, '_-+', '...');
- $version2 = strtr($version2, '_-+', '...');
-
- // and also inserts dots . before and after any non number so that for example '4.3.2RC1' becomes '4.3.2.RC.1'.
- // Then it splits the results like if you were using explode('.',$ver). Then it compares the parts starting from left to right.
- $version1 = eregi_replace('([0-9]+)([A-Z]+)([0-9]+)', '\\1.\\2.\\3', $version1);
- $version2 = eregi_replace('([0-9]+)([A-Z]+)([0-9]+)', '\\1.\\2.\\3', $version2);
-
- $parts1 = explode('.', $version1);
- $parts2 = explode('.', $version1);
- $parts_count = max(count($parts1), count($parts2));
- for ($i = 0; $i < $parts_count; $i++) {
- $comparison = phpthumb_functions::version_compare_replacement_sub($version1, $version2, $operator);
- if ($comparison != 0) {
- return $comparison;
- }
- }
- return 0;
- }
-
-
- function phpinfo_array() {
- static $phpinfo_array = array();
- if (empty($phpinfo_array)) {
- ob_start();
- phpinfo();
- $phpinfo = ob_get_contents();
- ob_end_clean();
- $phpinfo_array = explode("\n", $phpinfo);
- }
- return $phpinfo_array;
- }
-
-
- function exif_info() {
- static $exif_info = array();
- if (empty($exif_info)) {
- // based on code by johnschaefer at gmx dot de
- // from PHP help on gd_info()
- $exif_info = array(
- 'EXIF Support' => '',
- 'EXIF Version' => '',
- 'Supported EXIF Version' => '',
- 'Supported filetypes' => ''
- );
- $phpinfo_array = phpthumb_functions::phpinfo_array();
- foreach ($phpinfo_array as $dummy => $line) {
- $line = trim(strip_tags($line));
- foreach ($exif_info as $key => $value) {
- if (strpos($line, $key) === 0) {
- $newvalue = trim(str_replace($key, '', $line));
- $exif_info[$key] = $newvalue;
- }
- }
- }
- }
- return $exif_info;
- }
-
-
- function ImageTypeToMIMEtype($imagetype) {
- if (function_exists('image_type_to_mime_type') && ($imagetype >= 1) && ($imagetype <= 16)) {
- // PHP v4.3.0+
- return image_type_to_mime_type($imagetype);
- }
- static $image_type_to_mime_type = array(
- 1 => 'image/gif', // IMAGETYPE_GIF
- 2 => 'image/jpeg', // IMAGETYPE_JPEG
- 3 => 'image/png', // IMAGETYPE_PNG
- 4 => 'application/x-shockwave-flash', // IMAGETYPE_SWF
- 5 => 'image/psd', // IMAGETYPE_PSD
- 6 => 'image/bmp', // IMAGETYPE_BMP
- 7 => 'image/tiff', // IMAGETYPE_TIFF_II (intel byte order)
- 8 => 'image/tiff', // IMAGETYPE_TIFF_MM (motorola byte order)
- 9 => 'application/octet-stream', // IMAGETYPE_JPC
- 10 => 'image/jp2', // IMAGETYPE_JP2
- 11 => 'application/octet-stream', // IMAGETYPE_JPX
- 12 => 'application/octet-stream', // IMAGETYPE_JB2
- 13 => 'application/x-shockwave-flash', // IMAGETYPE_SWC
- 14 => 'image/iff', // IMAGETYPE_IFF
- 15 => 'image/vnd.wap.wbmp', // IMAGETYPE_WBMP
- 16 => 'image/xbm', // IMAGETYPE_XBM
-
- 'gif' => 'image/gif', // IMAGETYPE_GIF
- 'jpg' => 'image/jpeg', // IMAGETYPE_JPEG
- 'jpeg' => 'image/jpeg', // IMAGETYPE_JPEG
- 'png' => 'image/png', // IMAGETYPE_PNG
- 'bmp' => 'image/bmp', // IMAGETYPE_BMP
- 'ico' => 'image/x-icon',
- );
-
- return (isset($image_type_to_mime_type[$imagetype]) ? $image_type_to_mime_type[$imagetype] : false);
- }
-
-
- function HexCharDisplay($string) {
- $len = strlen($string);
- $output = '';
- for ($i = 0; $i < $len; $i++) {
- $output .= ' 0x'.str_pad(dechex(ord($string{$i})), 2, '0', STR_PAD_LEFT);
- }
- return $output;
- }
-
-
- function IsHexColor($HexColorString) {
- return eregi('^[0-9A-F]{6}$', $HexColorString);
- }
-
-
- function ImageColorAllocateAlphaSafe(&$gdimg_hexcolorallocate, $R, $G, $B, $alpha=false) {
- if (phpthumb_functions::version_compare_replacement(phpversion(), '4.3.2', '>=') && ($alpha !== false)) {
- return ImageColorAllocateAlpha($gdimg_hexcolorallocate, $R, $G, $B, intval($alpha));
- } else {
- return ImageColorAllocate($gdimg_hexcolorallocate, $R, $G, $B);
- }
- }
-
- function ImageHexColorAllocate(&$gdimg_hexcolorallocate, $HexColorString, $dieOnInvalid=false, $alpha=false) {
- if (!is_resource($gdimg_hexcolorallocate)) {
- die('$gdimg_hexcolorallocate is not a GD resource in ImageHexColorAllocate()');
- }
- if (phpthumb_functions::IsHexColor($HexColorString)) {
- $R = hexdec(substr($HexColorString, 0, 2));
- $G = hexdec(substr($HexColorString, 2, 2));
- $B = hexdec(substr($HexColorString, 4, 2));
- return phpthumb_functions::ImageColorAllocateAlphaSafe($gdimg_hexcolorallocate, $R, $G, $B, $alpha);
- }
- if ($dieOnInvalid) {
- die('Invalid hex color string: "'.$HexColorString.'"');
- }
- return ImageColorAllocate($gdimg_hexcolorallocate, 0x00, 0x00, 0x00);
- }
-
-
- function HexColorXOR($hexcolor) {
- return strtoupper(str_pad(dechex(~hexdec($hexcolor) & 0xFFFFFF), 6, '0', STR_PAD_LEFT));
- }
-
-
- function GetPixelColor(&$img, $x, $y) {
- if (!is_resource($img)) {
- return false;
- }
- return @ImageColorsForIndex($img, @ImageColorAt($img, $x, $y));
- }
-
-
- function GrayscaleValue($r, $g, $b) {
- return round(($r * 0.30) + ($g * 0.59) + ($b * 0.11));
- }
-
-
- function GrayscalePixel($OriginalPixel) {
- $gray = phpthumb_functions::GrayscaleValue($OriginalPixel['red'], $OriginalPixel['green'], $OriginalPixel['blue']);
- return array('red'=>$gray, 'green'=>$gray, 'blue'=>$gray);
- }
-
-
- function GrayscalePixelRGB($rgb) {
- $r = ($rgb >> 16) & 0xFF;
- $g = ($rgb >> 8) & 0xFF;
- $b = $rgb & 0xFF;
- return ($r * 0.299) + ($g * 0.587) + ($b * 0.114);
- }
-
-
- function ImageCopyResampleBicubic($dst_img, $src_img, $dst_x, $dst_y, $src_x, $src_y, $dst_w, $dst_h, $src_w, $src_h) {
- // ron at korving dot demon dot nl
- // http://www.php.net/imagecopyresampled
-
- $scaleX = ($src_w - 1) / $dst_w;
- $scaleY = ($src_h - 1) / $dst_h;
-
- $scaleX2 = $scaleX / 2.0;
- $scaleY2 = $scaleY / 2.0;
-
- $isTrueColor = ImageIsTrueColor($src_img);
-
- for ($y = $src_y; $y < $src_y + $dst_h; $y++) {
- $sY = $y * $scaleY;
- $siY = (int) $sY;
- $siY2 = (int) $sY + $scaleY2;
-
- for ($x = $src_x; $x < $src_x + $dst_w; $x++) {
- $sX = $x * $scaleX;
- $siX = (int) $sX;
- $siX2 = (int) $sX + $scaleX2;
-
- if ($isTrueColor) {
-
- $c1 = ImageColorAt($src_img, $siX, $siY2);
- $c2 = ImageColorAt($src_img, $siX, $siY);
- $c3 = ImageColorAt($src_img, $siX2, $siY2);
- $c4 = ImageColorAt($src_img, $siX2, $siY);
-
- $r = (( $c1 + $c2 + $c3 + $c4 ) >> 2) & 0xFF0000;
- $g = ((($c1 & 0x00FF00) + ($c2 & 0x00FF00) + ($c3 & 0x00FF00) + ($c4 & 0x00FF00)) >> 2) & 0x00FF00;
- $b = ((($c1 & 0x0000FF) + ($c2 & 0x0000FF) + ($c3 & 0x0000FF) + ($c4 & 0x0000FF)) >> 2);
-
- } else {
-
- $c1 = ImageColorsForIndex($src_img, ImageColorAt($src_img, $siX, $siY2));
- $c2 = ImageColorsForIndex($src_img, ImageColorAt($src_img, $siX, $siY));
- $c3 = ImageColorsForIndex($src_img, ImageColorAt($src_img, $siX2, $siY2));
- $c4 = ImageColorsForIndex($src_img, ImageColorAt($src_img, $siX2, $siY));
-
- $r = ($c1['red'] + $c2['red'] + $c3['red'] + $c4['red'] ) << 14;
- $g = ($c1['green'] + $c2['green'] + $c3['green'] + $c4['green']) << 6;
- $b = ($c1['blue'] + $c2['blue'] + $c3['blue'] + $c4['blue'] ) >> 2;
-
- }
- ImageSetPixel($dst_img, $dst_x + $x - $src_x, $dst_y + $y - $src_y, $r+$g+$b);
- }
- }
- return true;
- }
-
-
- function ImageCreateFunction($x_size, $y_size) {
- $ImageCreateFunction = 'ImageCreate';
- if (phpthumb_functions::gd_version() >= 2.0) {
- $ImageCreateFunction = 'ImageCreateTrueColor';
- }
- if (!function_exists($ImageCreateFunction)) {
- return phpthumb::ErrorImage($ImageCreateFunction.'() does not exist - no GD support?');
- }
- if (($x_size <= 0) || ($y_size <= 0)) {
- return phpthumb::ErrorImage('Invalid image dimensions: '.$ImageCreateFunction.'('.$x_size.', '.$y_size.')');
- }
- return $ImageCreateFunction($x_size, $y_size);
- }
-
-
- function ImageCopyRespectAlpha(&$dst_im, &$src_im, $dst_x, $dst_y, $src_x, $src_y, $src_w, $src_h, $pct=100) {
- for ($x = $src_x; $x < $src_w; $x++) {
- for ($y = $src_y; $y < $src_h; $y++) {
- $RealPixel = phpthumb_functions::GetPixelColor($dst_im, $dst_x + $x, $dst_y + $y);
- $OverlayPixel = phpthumb_functions::GetPixelColor($src_im, $x, $y);
- $alphapct = $OverlayPixel['alpha'] / 127;
- $opacipct = $pct / 100;
- $overlaypct = (1 - $alphapct) * $opacipct;
-
- $newcolor = phpthumb_functions::ImageColorAllocateAlphaSafe(
- $dst_im,
- round($RealPixel['red'] * (1 - $overlaypct)) + ($OverlayPixel['red'] * $overlaypct),
- round($RealPixel['green'] * (1 - $overlaypct)) + ($OverlayPixel['green'] * $overlaypct),
- round($RealPixel['blue'] * (1 - $overlaypct)) + ($OverlayPixel['blue'] * $overlaypct),
- //$RealPixel['alpha']);
- 0);
-
- ImageSetPixel($dst_im, $dst_x + $x, $dst_y + $y, $newcolor);
- }
- }
- return true;
- }
-
-
- function ProportionalResize($old_width, $old_height, $new_width=false, $new_height=false) {
- $old_aspect_ratio = $old_width / $old_height;
- if (($new_width === false) && ($new_height === false)) {
- return false;
- } elseif ($new_width === false) {
- $new_width = $new_height * $old_aspect_ratio;
- } elseif ($new_height === false) {
- $new_height = $new_width / $old_aspect_ratio;
- }
- $new_aspect_ratio = $new_width / $new_height;
- if ($new_aspect_ratio == $old_aspect_ratio) {
- // great, done
- } elseif ($new_aspect_ratio < $old_aspect_ratio) {
- // limited by width
- $new_height = $new_width / $old_aspect_ratio;
- } elseif ($new_aspect_ratio > $old_aspect_ratio) {
- // limited by height
- $new_width = $new_height * $old_aspect_ratio;
- }
- return array(round($new_width), round($new_height));
- }
-
-
- function SafeExec($command) {
- static $AllowedExecFunctions = array();
- if (empty($AllowedExecFunctions)) {
- $AllowedExecFunctions = array('shell_exec'=>true, 'passthru'=>true, 'system'=>true, 'exec'=>true);
- if (@ini_get('safe_mode')) {
- $AllowedExecFunctions['shell_exec'] = false;
- }
- $disable_functions = explode(',', @ini_get('disable_functions'));
- foreach ($AllowedExecFunctions as $key => $value) {
- if (in_array($key, $disable_functions)) {
- $AllowedExecFunctions[$key] = false;
- }
- }
- }
- foreach ($AllowedExecFunctions as $execfunction => $is_allowed) {
- if (!$is_allowed) {
- continue;
- }
- switch ($execfunction) {
- case 'passthru':
- ob_start();
- $execfunction($command);
- $returnvalue = ob_get_contents();
- ob_end_clean();
- break;
-
- case 'shell_exec':
- case 'system':
- case 'exec':
- default:
- $returnvalue = @$execfunction($command);
- break;
- }
- return $returnvalue;
- }
- return false;
- }
-
-
- function ApacheLookupURIarray($filename) {
- // apache_lookup_uri() only works when PHP is installed as an Apache module.
- if (php_sapi_name() == 'apache') {
- $keys = array('status', 'the_request', 'status_line', 'method', 'content_type', 'handler', 'uri', 'filename', 'path_info', 'args', 'boundary', 'no_cache', 'no_local_copy', 'allowed', 'send_bodyct', 'bytes_sent', 'byterange', 'clength', 'unparsed_uri', 'mtime', 'request_time');
- if ($apacheLookupURIobject = @apache_lookup_uri($filename)) {
- $apacheLookupURIarray = array();
- foreach ($keys as $dummy => $key) {
- $apacheLookupURIarray[$key] = @$apacheLookupURIobject->$key;
- }
- return $apacheLookupURIarray;
- }
- }
- return false;
- }
-
-
- function gd_is_bundled() {
- static $isbundled = null;
- if (is_null($isbundled)) {
- $gd_info = gd_info();
- $isbundled = (strpos($gd_info['GD Version'], 'bundled') !== false);
- }
- return $isbundled;
- }
-
-
- function gd_version($fullstring=false) {
- static $cache_gd_version = array();
- if (empty($cache_gd_version)) {
- $gd_info = gd_info();
- if (eregi('bundled \((.+)\)$', $gd_info['GD Version'], $matches)) {
- $cache_gd_version[1] = $gd_info['GD Version']; // e.g. "bundled (2.0.15 compatible)"
- $cache_gd_version[0] = (float) $matches[1]; // e.g. "2.0" (not "bundled (2.0.15 compatible)")
- } else {
- $cache_gd_version[1] = $gd_info['GD Version']; // e.g. "1.6.2 or higher"
- $cache_gd_version[0] = (float) substr($gd_info['GD Version'], 0, 3); // e.g. "1.6" (not "1.6.2 or higher")
- }
- }
- return $cache_gd_version[intval($fullstring)];
- }
-
-
- function filesize_remote($remotefile, $timeout=10) {
- $size = false;
- $url = parse_url($remotefile);
- if ($fp = @fsockopen($url['host'], ($url['port'] ? $url['port'] : 80), $errno, $errstr, $timeout)) {
- fwrite($fp, 'HEAD '.@$url['path'].@$url['query'].' HTTP/1.0'."\r\n".'Host: '.@$url['host']."\r\n\r\n");
- if (phpthumb_functions::version_compare_replacement(phpversion(), '4.3.0', '>=')) {
- stream_set_timeout($fp, $timeout);
- }
- while (!feof($fp)) {
- $headerline = fgets($fp, 4096);
- if (eregi('^Content-Length: (.*)', $headerline, $matches)) {
- $size = intval($matches[1]);
- break;
- }
- }
- fclose ($fp);
- }
- return $size;
- }
-
-
- function filedate_remote($remotefile, $timeout=10) {
- $date = false;
- $url = parse_url($remotefile);
- if ($fp = @fsockopen($url['host'], ($url['port'] ? $url['port'] : 80), $errno, $errstr, $timeout)) {
- fwrite($fp, 'HEAD '.@$url['path'].@$url['query'].' HTTP/1.0'."\r\n".'Host: '.@$url['host']."\r\n\r\n");
- if (phpthumb_functions::version_compare_replacement(phpversion(), '4.3.0', '>=')) {
- stream_set_timeout($fp, $timeout);
- }
- while (!feof($fp)) {
- $headerline = fgets($fp, 4096);
- if (eregi('^Last-Modified: (.*)', $headerline, $matches)) {
- $date = strtotime($matches[1]) - date('Z');
- break;
- }
- }
- fclose ($fp);
- }
- return $date;
- }
-
-
- function md5_file_safe($filename) {
- // md5_file() doesn't exist in PHP < 4.2.0
- if (function_exists('md5_file')) {
- return md5_file($filename);
- }
- if ($fp = @fopen($filename, 'rb')) {
- $rawData = '';
- do {
- $buffer = fread($fp, 8192);
- $rawData .= $buffer;
- } while (strlen($buffer) > 0);
- fclose($fp);
- return md5($rawData);
- }
- return false;
- }
-
-
- function nonempty_min() {
- $arg_list = func_get_args();
- $acceptable = array();
- foreach ($arg_list as $dummy => $arg) {
- if ($arg) {
- $acceptable[] = $arg;
- }
- }
- return min($acceptable);
- }
-
-
- function LittleEndian2String($number, $minbytes=1) {
- $intstring = '';
- while ($number > 0) {
- $intstring = $intstring.chr($number & 255);
- $number >>= 8;
- }
- return str_pad($intstring, $minbytes, "\x00", STR_PAD_RIGHT);
- }
-
- function OneOfThese() {
- // return the first useful (non-empty/non-zero/non-false) value from those passed
- $arg_list = func_get_args();
- foreach ($arg_list as $key => $value) {
- if ($value) {
- return $value;
- }
- }
- return false;
- }
-
- function CaseInsensitiveInArray($needle, $haystack) {
- $needle = strtolower($needle);
- foreach ($haystack as $key => $value) {
- if (is_array($value)) {
- // skip?
- } elseif ($needle == strtolower($value)) {
- return true;
- }
- }
- return false;
- }
-
- function SafeURLread($url, &$error) {
- if (function_exists('curl_version')) {
- $ch = curl_init();
- curl_setopt($ch, CURLOPT_URL, $url);
- curl_setopt($ch, CURLOPT_HEADER, false);
- curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
- curl_setopt($ch, CURLOPT_BINARYTRANSFER, true);
- $rawData = curl_exec($ch);
- curl_close($ch);
- if (strlen($rawData) > 0) {
- return $rawData;
- }
- $error .= 'CURL available but returned no data; ';
- } else {
- $error .= 'CURL unavailable; ';
- }
- if (@ini_get('allow_url_fopen')) {
- $rawData = '';
- ob_start();
- if ($fp = fopen($url, 'rb')) {
- do {
- $buffer = fread($fp, 8192);
- $rawData .= $buffer;
- } while (strlen($buffer) > 0);
- fclose($fp);
- } else {
- $error = trim(strip_tags(ob_get_contents()));
- }
- ob_end_clean();
- if (!$error) {
- return $rawData;
- }
- $error .= '; "allow_url_fopen" enabled but returned no data; ';
- } else {
- $error .= '"allow_url_fopen" disabled; ';
- }
- return false;
- }
-
-}
-
-
-if (!function_exists('gd_info')) {
- // built into PHP v4.3.0+ (with bundled GD2 library)
- function gd_info() {
- static $gd_info = array();
- if (empty($gd_info)) {
- // based on code by johnschaefer at gmx dot de
- // from PHP help on gd_info()
- $gd_info = array(
- 'GD Version' => '',
- 'FreeType Support' => false,
- 'FreeType Linkage' => '',
- 'T1Lib Support' => false,
- 'GIF Read Support' => false,
- 'GIF Create Support' => false,
- 'JPG Support' => false,
- 'PNG Support' => false,
- 'WBMP Support' => false,
- 'XBM Support' => false
- );
- $phpinfo_array = phpthumb_functions::phpinfo_array();
- foreach ($phpinfo_array as $dummy => $line) {
- $line = trim(strip_tags($line));
- foreach ($gd_info as $key => $value) {
- //if (strpos($line, $key) !== false) {
- if (strpos($line, $key) === 0) {
- $newvalue = trim(str_replace($key, '', $line));
- $gd_info[$key] = $newvalue;
- }
- }
- }
- if (empty($gd_info['GD Version'])) {
- // probable cause: "phpinfo() disabled for security reasons"
- if (function_exists('ImageTypes')) {
- $imagetypes = ImageTypes();
- if ($imagetypes & IMG_PNG) {
- $gd_info['PNG Support'] = true;
- }
- if ($imagetypes & IMG_GIF) {
- $gd_info['GIF Create Support'] = true;
- }
- if ($imagetypes & IMG_JPG) {
- $gd_info['JPG Support'] = true;
- }
- if ($imagetypes & IMG_WBMP) {
- $gd_info['WBMP Support'] = true;
- }
- }
- // to determine capability of GIF creation, try to use ImageCreateFromGIF on a 1px GIF
- if (function_exists('ImageCreateFromGIF')) {
- if ($tempfilename = phpthumb::phpThumb_tempnam()) {
- if ($fp_tempfile = @fopen($tempfilename, 'wb')) {
- fwrite($fp_tempfile, base64_decode('R0lGODlhAQABAIAAAH//AP///ywAAAAAAQABAAACAUQAOw==')); // very simple 1px GIF file base64-encoded as string
- fclose($fp_tempfile);
-
- // if we can convert the GIF file to a GD image then GIF create support must be enabled, otherwise it's not
- $gd_info['GIF Read Support'] = (bool) @ImageCreateFromGIF($tempfilename);
- }
- unlink($tempfilename);
- }
- }
- if (function_exists('ImageCreateTrueColor') && @ImageCreateTrueColor(1, 1)) {
- $gd_info['GD Version'] = '2.0.1 or higher (assumed)';
- } elseif (function_exists('ImageCreate') && @ImageCreate(1, 1)) {
- $gd_info['GD Version'] = '1.6.0 or higher (assumed)';
- }
- }
- }
- return $gd_info;
- }
-}
-
-
-if (!function_exists('is_executable')) {
- // in PHP v3+, but v5.0+ for Windows
- function is_executable($filename) {
- // poor substitute, but better than nothing
- return file_exists($filename);
- }
-}
-
-
-if (!function_exists('preg_quote')) {
- // included in PHP v3.0.9+, but may be unavailable if not compiled in
- function preg_quote($string, $delimiter='\\') {
- static $preg_quote_array = array();
- if (empty($preg_quote_array)) {
- $escapeables = '.\\+*?[^]$(){}=!<>|:';
- for ($i = 0; $i < strlen($escapeables); $i++) {
- $strtr_preg_quote[$escapeables{$i}] = $delimiter.$escapeables{$i};
- }
- }
- return strtr($string, $strtr_preg_quote);
- }
-}
-
-if (!function_exists('file_get_contents')) {
- // included in PHP v4.3.0+
- function file_get_contents($filename) {
- if (eregi('^(f|ht)tp\://', $filename)) {
- return SafeURLread($filename);
- }
- if ($fp = @fopen($filename, 'rb')) {
- $rawData = '';
- do {
- $buffer = fread($fp, 8192);
- $rawData .= $buffer;
- } while (strlen($buffer) > 0);
- fclose($fp);
- return $rawData;
- }
- return false;
- }
-}
-
-
-if (!function_exists('file_put_contents')) {
- // included in PHP v5.0.0+
- function file_put_contents($filename, $filedata) {
- if ($fp = @fopen($filename, 'wb')) {
- fwrite($fp, $filedata);
- fclose($fp);
- return true;
- }
- return false;
- }
-}
-
-if (!function_exists('imagealphablending')) {
- // built-in function requires PHP v4.0.6+ *and* GD v2.0.1+
- function imagealphablending(&$img, $blendmode=true) {
- // do nothing, this function is declared here just to
- // prevent runtime errors if GD2 is not available
- return true;
- }
-}
-
-if (!function_exists('imagesavealpha')) {
- // built-in function requires PHP v4.3.2+ *and* GD v2.0.1+
- function imagesavealpha(&$img, $blendmode=true) {
- // do nothing, this function is declared here just to
- // prevent runtime errors if GD2 is not available
- return true;
- }
-}
-
-?>
\ No newline at end of file
projects / atutor.git / blobdiff