note 35748 modified in function.imagecopyresampled by didou

A little functio wich helps if you want to make a photo galery program.... $maxWidth & $maxHeight define the maximum size of a thumbnail image. The programs calculates automatically which contraint he should use (either constrain on width or over height) <?php function image_createThumb($src,$dest,$maxWidth,$maxHeight,$quality=100) { if (file_exists($src) && isset($dest)) { // path info $destInfo = pathInfo($dest); // image src size $srcSize = getImageSize($src); // image dest size $destSize[0] = width, $destSize[1] = height $srcRatio = $srcSize[0]/$srcSize[1]; // width/height ratio $destRatio = $maxWidth/$maxHeight; if ($destRatio > $srcRatio) { $destSize[1] = $maxHeight; $destSize[0] = $maxHeight*$srcRatio; } else { $destSize[0] = $maxWidth; $destSize[1] = $maxWidth/$srcRatio; } // path rectification if ($destInfo['extension'] == "gif") { $dest = substr_replace($dest, 'jpg', -3); } // true color image, with anti-aliasing $destImage = imageCreateTrueColor($destSize[0],$destSize[1]); imageAntiAlias($destImage,true); // src image switch ($srcSize[2]) { case 1: //GIF $srcImage = imageCreateFromGif($src); break; case 2: //JPEG $srcImage = imageCreateFromJpeg($src); break; case 3: //PNG $srcImage = imageCreateFromPng($src); break; default: return false; break; } // resampling imageCopyResampled($destImage, $srcImage, 0, 0, 0, 0,$destSize[0],$destSize[1],$srcSize[0],$srcSize[1]); // generating image switch ($srcSize[2]) { case 1: case 2: imageJpeg($destImage,$dest,$quality); break; case 3: imagePng($destImage,$dest); break; } return true; } else { return false; } } ?> --was-- A little functio wich helps if you want to make a photo galery program.... $maxWidth & $maxHeight define the maximum size of a thumbnail image. The programs calculates automatically which contraint he should use (either constrain on width or over height) function image_createThumb($src,$dest,$maxWidth,$maxHeight,$quality=100) { if (file_exists($src) && isset($dest)) { // path info $destInfo = pathInfo($dest); // image src size $srcSize = getImageSize($src); // image dest size $destSize[0] = width, $destSize[1] = height $srcRatio = $srcSize[0]/$srcSize[1]; // width/height ratio $destRatio = $maxWidth/$maxHeight; if ($destRatio > $srcRatio) { $destSize[1] = $maxHeight; $destSize[0] = $maxHeight*$srcRatio; } else { $destSize[0] = $maxWidth; $destSize[1] = $maxWidth/$srcRatio; } // path rectification if ($destInfo['extension'] == "gif") { $dest = substr_replace($dest, 'jpg', -3); } // true color image, with anti-aliasing $destImage = imageCreateTrueColor($destSize[0],$destSize[1]); imageAntiAlias($destImage,true); // src image switch ($srcSize[2]) { case 1: //GIF $srcImage = imageCreateFromGif($src); break; case 2: //JPEG $srcImage = imageCreateFromJpeg($src); break; case 3: //PNG $srcImage = imageCreateFromPng($src); break; default: return false; break; } // resampling imageCopyResampled($destImage, $srcImage, 0, 0, 0, 0,$destSize[0],$destSize[1],$srcSize[0],$srcSize[1]); // generating image switch ($srcSize[2]) { case 1: case 2: imageJpeg($destImage,$dest,$quality); break; case 3: imagePng($destImage,$dest); break; } return true; } else { return false; } } http://www.php.net/manual/en/function.imagecopyresampled.php