判断图片文件结尾，补全.jpg, .jpeg, .png or .gif

Question

本帖最后由 mumubangditu 于 2012-04-07 17:26:49 编辑

Answer 1

$url = "http://pcdn.500px.net/5953805/d0dd841969187f47e8ad9157713949b4b95b3bda/4.jpg?1333782904356";
$url_arr = parse_url($url);
echo basename($url_arr['path']);http://www.php.net/manual/zh/function.parse-url.php

Answer 2

$webimage  = 'http://pcdn.500px.net/5953805/d0dd841969187f47e8ad9157713949b4b95b3bda/4.jpg?1333782904356';
$pieces    = explode("/", $webimage);
$fileName   = end($pieces);
$ar = explode('.', $fileName);
preg_match('/^(jpg|jpeg|png|gif){1}\.*/i', $ar[1], $match);
$newFileName = $ar[0].'.'.$match[1];
echo $newFileName;