45 lines
1.0 KiB
PHP
45 lines
1.0 KiB
PHP
<?php
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function resize($width, $height){
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/* Get original image x y*/
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list($w, $h) = getimagesize($_FILES['image']['tmp_name']);
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/* calculate new image size with ratio */
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$ratio = max($width/$w, $height/$h);
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$h = ceil($height / $ratio);
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$x = ($w - $width / $ratio) / 2;
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$w = ceil($width / $ratio);
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/* new file name */
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$path = 'i/'.$width.'x'.$height.'_'.$_FILES['image']['name'];
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/* read binary data from image file */
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$imgString = file_get_contents($_FILES['image']['tmp_name']);
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/* create image from string */
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$image = imagecreatefromstring($imgString);
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$tmp = imagecreatetruecolor($width, $height);
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imagecopyresampled($tmp, $image,
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0, 0,
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$x, 0,
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$width, $height,
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$w, $h);
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/* Save image */
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switch ($_FILES['image']['type']) {
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case 'image/jpeg':
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imagejpeg($tmp, $path, 100);
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break;
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case 'image/png':
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imagepng($tmp, $path, 0);
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break;
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case 'image/gif':
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imagegif($tmp, $path);
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break;
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default:
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exit;
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break;
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}
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return $path;
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/* cleanup memory */
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imagedestroy($image);
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imagedestroy($tmp);
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}
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?>
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