<div class="codetitle"><a style="CURSOR: pointer" data="46613" class="copybut" id="copybut46613" onclick="doCopy('code46613')"> 代码如下:<div class="codebody" id="code46613"> <?php $file = "/home/lvyaozu/backup_20080115.txt"; for($i=1; $i < 6; $i++) { $func = 'get_fileext' . $i; var_dump($func($file)); } function get_file_ext_1($file) { return strtolower(trim(substr(strrchr($file,'.'),1))); } function get_file_ext_2($file) { return strtolower(trim(pathinfo($file,PATHINFO_EXTENSION))); } function get_file_ext_3($file) { return strtolower(trim(substr($file,strrpos($file,'.')+1))); } function get_file_ext_4($file) { return strtolower(trim(array_pop(explode('.',$file)))); } function get_file_ext_5($file) { $tok = strtok($file,'.'); while($tok !== false) { $return = $tok; $tok = strtok('.'); } return strtolower(trim($return)); } ?> 本文来自CSDN博客,转载请标明出处:http://blog.csdn.net/lvyaozu/archive/2009/06/03/4237628.aspx
(编辑:李大同)
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