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<?php function getExt($filename) { Echo $filename; if(!is_file($filename)) return ''; $n = strlen($filename); if($n<2) return ''; $non_ext = ''; $ext = ''; for($i=$n;$i--;$i>=1) { $c = $filename[$i]; if($c==='.') { $ext = '.'.$non_ext.$ext; $non_ext = ''; }else $non_ext = $c.$non_ext; } return $ext; } $filename = "asdfasdfasd.tar.gz"; $ext = getExt($filename); var_dump($ext);
Output for git.master, git.master_jit, rfc.property-hooks
asdfasdfasd.tar.gz Warning: is_file(): open_basedir restriction in effect. File(asdfasdfasd.tar.gz) is not within the allowed path(s): (/tmp:/in:/etc) in /in/2N3X2 on line 5 string(0) ""

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