不需要所有这些。出 ,它为您提供了路径的所有组件。
手册中的示例:
$path_parts = pathinfo('/www/htdocs/index.html');
echo $path_parts['dirname'], "\n";
echo $path_parts['basename'], "\n";
echo $path_parts['extension'], "\n";
echo $path_parts['filename'], "\n"; // filename is only since PHP 5.2.0
/www/htdocs
index.html
html
index
或者,您只能获得某些部分,例如:
echo pathinfo('/www/htdocs/index.html', PATHINFO_EXTENSION); // outputs html