Question

php检测png图片是否完好代码

Answer 1

php $filename = ‘./D243375_0.png’; $filename = realpath($filename); if (!file_exists($filename)) { die(“圖片不存在~!”); } $size = getimagesize ($filename); $file_extension = strtolower(substr(strrchr($filename,”.”),1)); if(“image/png” != $size['mime'] || $file_extension != “png”){ die(“這不是一張完整的png圖片~”); } $img = @imagecreatefrompng ($filename); if($img){ ob_start(“output_handler”); imagepng($img); ob_end_flush(); }else{ die(“不能正確的創建png圖形,請檢查png圖形是否完好~”); } function output_handler($img) { header(‘Content-type: image/png’); header(‘Content-Length:’.strlen($img)); return $img; } ?>