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Digg  gd_info
Retrieve information about the currently installed GD library
(PHP 4 >= 4.3.0, PHP 5)
Example 979. Using gd_info()<?phpThe above example will output something similar to: array(9) {Code Examples / Notes » gd_infojohnschaefer
this is a replacement for this function. you can also use this function in php >= 4.3. the handling is the same as the gd_info function (array gd_info(void)) <?php $code = 'function gd_info() { $array = Array( "GD Version" => "", "FreeType Support" => 0, "FreeType Support" => 0, "FreeType Linkage" => "", "T1Lib Support" => 0, "GIF Read Support" => 0, "GIF Create Support" => 0, "JPG Support" => 0, "PNG Support" => 0, "WBMP Support" => 0, "XBM Support" => 0 ); $gif_support = 0; ob_start(); eval("phpinfo();"); $info = ob_get_contents(); ob_end_clean(); foreach(explode("\n", $info) as $line) { if(strpos($line, "GD Version")!==false) $array["GD Version"] = trim(str_replace("GD Version", "", strip_tags($line))); if(strpos($line, "FreeType Support")!==false) $array["FreeType Support"] = trim(str_replace("FreeType Support", "", strip_tags($line))); if(strpos($line, "FreeType Linkage")!==false) $array["FreeType Linkage"] = trim(str_replace("FreeType Linkage", "", strip_tags($line))); if(strpos($line, "T1Lib Support")!==false) $array["T1Lib Support"] = trim(str_replace("T1Lib Support", "", strip_tags($line))); if(strpos($line, "GIF Read Support")!==false) $array["GIF Read Support"] = trim(str_replace("GIF Read Support", "", strip_tags($line))); if(strpos($line, "GIF Create Support")!==false) $array["GIF Create Support"] = trim(str_replace("GIF Create Support", "", strip_tags($line))); if(strpos($line, "GIF Support")!==false) $gif_support = trim(str_replace("GIF Support", "", strip_tags($line))); if(strpos($line, "JPG Support")!==false) $array["JPG Support"] = trim(str_replace("JPG Support", "", strip_tags($line))); if(strpos($line, "PNG Support")!==false) $array["PNG Support"] = trim(str_replace("PNG Support", "", strip_tags($line))); if(strpos($line, "WBMP Support")!==false) $array["WBMP Support"] = trim(str_replace("WBMP Support", "", strip_tags($line))); if(strpos($line, "XBM Support")!==false) $array["XBM Support"] = trim(str_replace("XBM Support", "", strip_tags($line))); } if($gif_support==="enabled") { $array["GIF Read Support"] = 1; $array["GIF Create Support"] = 1; } if($array["FreeType Support"]==="enabled"){ $array["FreeType Support"] = 1; } if($array["T1Lib Support"]==="enabled") $array["T1Lib Support"] = 1; if($array["GIF Read Support"]==="enabled"){ $array["GIF Read Support"] = 1; } if($array["GIF Create Support"]==="enabled") $array["GIF Create Support"] = 1; if($array["JPG Support"]==="enabled") $array["JPG Support"] = 1; if($array["PNG Support"]==="enabled") $array["PNG Support"] = 1; if($array["WBMP Support"]==="enabled") $array["WBMP Support"] = 1; if($array["XBM Support"]==="enabled") $array["XBM Support"] = 1; return $array; }'; if(!function_exists("gd_info")) eval($code); ?> hagan fox
This function safely determines the GD version, even on PHP versions earlier than 4.3 that lack the gd_info() function. Use it to avoid having your script halt with a fatal error if you try to use a TrueColor function and the GD version isn't 2.0 or later. You can optionally specify a version, but if you specify version 2 it might be overridden. Once the version number is determined it's retained to speed future calls. <?php /** * Get which version of GD is installed, if any. * * Returns the version (1 or 2) of the GD extension. */ function gdVersion($user_ver = 0) { if (! extension_loaded('gd')) { return; } static $gd_ver = 0; // Just accept the specified setting if it's 1. if ($user_ver == 1) { $gd_ver = 1; return 1; } // Use the static variable if function was called previously. if ($user_ver !=2 && $gd_ver > 0 ) { return $gd_ver; } // Use the gd_info() function if possible. if (function_exists('gd_info')) { $ver_info = gd_info(); preg_match('/\d/', $ver_info['GD Version'], $match); $gd_ver = $match[0]; return $match[0]; } // If phpinfo() is disabled use a specified / fail-safe choice... if (preg_match('/phpinfo/', ini_get('disable_functions'))) { if ($user_ver == 2) { $gd_ver = 2; return 2; } else { $gd_ver = 1; return 1; } } // ...otherwise use phpinfo(). ob_start(); phpinfo(8); $info = ob_get_contents(); ob_end_clean(); $info = stristr($info, 'gd version'); preg_match('/\d/', $info, $match); $gd_ver = $match[0]; return $match[0]; } // End gdVersion() // Usage: if ($gdv = gdVersion()) { if ($gdv >=2) { echo 'TrueColor functions may be used.'; } else { echo 'GD version is 1. Avoid the TrueColor functions.'; } } else { echo "The GD extension isn't loaded."; } ?> The function only detects the GD version, but you could determine GD capabilities in a similar manner. phpnet
I updated the function below to include the GD Version info and any other string fields. The function only showed the bool values before. // Retrieve information about the currently installed GD library function describeGDdyn() { echo "\n<ul><li>GD support: "; if(function_exists("gd_info")){ echo "<font color=\"#00ff00\">yes</font>"; $info = gd_info(); $keys = array_keys($info); for($i=0; $i<count($keys); $i++) { if(is_bool($info[$keys[$i]])) echo "</li>\n<li>" . $keys[$i] .": " . yesNo($info[$keys[$i]]); else echo "</li>\n<li>" . $keys[$i] .": " . $info[$keys[$i]]; } } else { echo "<font color=\"#ff0000\">no</font>"; } echo "</li></ul>"; } function yesNo($bool){ if($bool) return "<font color=\"#00ff00\"> yes</font>"; else return "<font color=\"#ff0000\"> no</font>"; } michael z
An easy way to get the numeric value for the GD Version : $Version = ereg_replace('[[:alpha:][:space:]()]+', '', $GDArray['GD Version']); yohami dot com - zerodj
A cool resize / cropping script for creating thumbnails using mogrify IMAGETEST.PHP <?php include 'mogrify.php'; // variables from flash (my website uses flash and php) $picture="sample.jpg"; $fixedwidth=300; $fixedheight=240; // cropimage($picture,$fixedwidth,$fixedheight,$mogrify); ?> MOGRIFY.PHP <?php // walking the path $mogrify="C:/apache/Imagik/mogrify.exe"; // ---------------------------------------- crop function function cropimage($picture,$fixedwidth,$fixedheight,$mogrify) { // GET IMG $img = imagecreatefromjpeg($picture); $width= imagesx($img); $height= imagesy($img); // CROP WIDTH if($width!=$fixedwidth){ $ratio =$fixedwidth/$width; $NewHeight=round($height*$ratio); $NewWidth=round($width*$ratio); exec( $mogrify." -resize ".$NewWidth."x".$NewHeight."! $picture"); exec( $mogrify." -crop ".$fixedwidth."x".$fixedheight."+0+0 $picture"); // REFRESH $img = imagecreatefromjpeg($picture); $width= imagesx($img); $height= imagesy($img); } // CROP HEIGHT if($height!=$fixedheight){ $ratio =$fixedheight/$height; $NewHeight=round($height*$ratio); $NewWidth=round($width*$ratio); exec( $mogrify." -resize ".$NewWidth."x".$NewHeight."! $picture"); exec( $mogrify." -crop ".$fixedwidth."x".$fixedheight."+0+0 $picture"); } // ImageDestroy($img); } ?> yeah! baumbach
@ thorerik dot lie at gmail dot com <? $array=gd_info (); foreach ($array as $key=>$val) { if ($val===true) { $val="Enabled"; } if ($val===false) { $val="Disabled"; } echo "$key: $val <br />\n"; } ?> does the same thing (SCNR) |
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