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PODividing the image into three sizes in PHP
 

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  1. PODividing the image into three sizes in PHP
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    <p>I am actually trying to make an image into three sizes and then storing them in the server folder with different names. I am getting this image data in <a href="http://en.wikipedia.org/wiki/Base64" rel="nofollow">Base64</a> encoded format through the mobile client side. Here is the code where I am trying to convert the image into three images.</p> <p>This is the PHP file where I am receiving data.</p> <pre><code>$uploadPath = 'C:/xampp/htdocs/OSFiles/of-images/images/'; if(!is_dir($uploadPath)) mkdir($uploadPath,true) or trigger_error("Can't Create Folder"); $file = tempnam($uploadPath, 'image'); $fp = fopen($file, 'wb'); fwrite($fp, $binary); //$binary is--&gt; I am reading the image in binary as I am getting the photo data in base64 encoded format through mobile client side. So I decoded it to binary. fclose($fp); $result1 = mysql_query("INSERT INTO oc_t_item_resource(fk_i_item_id, s_name,s_extension,s_content_type, s_path) VALUES('$lastid','$s_name','$extension','$s_content_type','$imagepath')"); $imagelastid = mysql_insert_id(); // Create normal size $normal_path = $path = $uploadPath . $imagelastid . '.jpg' ; $size = explode('x', '640x480') ; ImageResizer::fromFile($file)-&gt;resizeTo($size[0], $size[1])-&gt;saveToFile($path) ; // Create preview $path = $uploadPath . $imagelastid . '_preview.jpg' ; $size = explode('x', '480x340') ; ImageResizer::fromFile($file)-&gt;resizeTo($size[0], $size[1])-&gt;saveToFile($path) ; // Create thumbnail $path = $uploadPath . $imagelastid . '_thumbnail.jpg' ; $size = explode('x', '240x200') ; ImageResizer::fromFile($file)-&gt;resizeTo($size[0], $size[1])-&gt;saveToFile($path) ; </code></pre> <p>This is my <strong>ImageResizer</strong> class which is in ImageResizer.php file.</p> <pre><code>&lt;?php class ImageResizer { public static function fromFile($imagePath) { return new ImageResizer($imagePath); } private $im; private function __construct($imagePath) { if(!file_exists($imagePath)) throw new Exception("$imagePath does not exist!"); if(!is_readable($imagePath)) throw new Exception("$imagePath is not readable!"); if(filesize($imagePath)==0) throw new Exception("$imagePath is corrupt or broken!"); if(osc_use_imagick()) { $this-&gt;im = new Imagick($imagePath); } else { $content = file_get_contents($imagePath); $this-&gt;im = imagecreatefromstring($content); } return $this; } public function __destruct() { if(osc_use_imagick()) { $this-&gt;im-&gt;destroy(); } else { imagedestroy($this-&gt;im); } } public function resizeTo($width, $height) { if(osc_use_imagick()) { $bg = new Imagick(); $bg-&gt;newImage($width, $height, 'white'); $this-&gt;im-&gt;thumbnailImage($width, $height, true); $geometry = $this-&gt;im-&gt;getImageGeometry(); $x = ( $width - $geometry['width'] ) / 2; $y = ( $height - $geometry['height'] ) / 2; $bg-&gt;compositeImage( $this-&gt;im, imagick::COMPOSITE_OVER, $x, $y ); $this-&gt;im = $bg; } else { $w = imagesx($this-&gt;im); $h = imagesy($this-&gt;im); if(($w/$h)&gt;=($width/$height)) { //$newW = $width; $newW = ($w &gt; $width)? $width : $w; $newH = $h * ($newW / $w); } else { //$newH = $height; $newH = ($h &gt; $height)? $height : $h; $newW = $w * ($newH / $h); } $newIm = imagecreatetruecolor($width,$height);//$newW, $newH); imagealphablending($newIm, false); $colorTransparent = imagecolorallocatealpha($newIm, 255, 255, 255, 127); imagefill($newIm, 0, 0, $colorTransparent); imagesavealpha($newIm, true); imagecopyresampled($newIm, $this-&gt;im, (($width-$newW)/2), (($height-$newH)/2), 0, 0, $newW, $newH, $w, $h); imagedestroy($this-&gt;im); $this-&gt;im = $newIm; } return $this; } public function saveToFile($imagePath) { if(file_exists($imagePath) &amp;&amp; !is_writable($imagePath)) throw new Exception("$imagePath is not writable!"); if(osc_use_imagick()) { $this-&gt;im-&gt;setImageFileName($imagePath); $this-&gt;im-&gt;writeImage($imagePath); } else { imagejpeg($this-&gt;im, $imagePath); } } public function show() { header('Content-Disposition: Attachment;filename=image.jpg'); header('Content-type: image/jpg'); if(osc_use_imagick()) { } else { imagepng($this-&gt;im); } } } ?&gt; </code></pre> <p>The image is not getting stored at all in the images folder. Where am I going wrong? </p> <p>A code snippet with corrections would be appreciated.</p> <p>(I am new to <a href="http://en.wikipedia.org/wiki/PHP" rel="nofollow">PHP</a>, so please be gentle.)</p>
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    1. USPeter Mortensen
    1. USrick
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    1. COAny error messages? Can you upload a file without the resizing step?
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      1. USethrbunny
    2. CO@ethrbunny Yeah. I can upload the image without the resizing step, if I save that temporary image by renaming it. Please suggest.
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      1. USrick
    3. COOK - so which steps did you bypass to get it working?
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      1. USethrbunny
 

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