五种方式获取文件扩展名-转载未验证「原」
Five ways to get file extensions - reproduced without verification
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<?php
$file = ‘siyuantlw/程序设计.php’;
function getExt1($file) {
return substr(strrchr($file,’.'),1);
}
function getExt2($file) {
return substr($file,strrpos($file,’.')+...
