目录遍历优化
我写了一段代码,实现了遍历目录以及该目录下的所有文件,功能是实现了,但是总觉得代码有优化的余地,希望各位大神帮忙瞧瞧。 //指定页面编码方式
header('Content-type:text/html;charset=utf-8');
$dir='f:/dir';
//方法调用
search_all_dir($dir);
//遍历目录的方法
function search_all_dir($dir)
{
if(is_dir($dir))
{
$handle=opendir($dir);
$piarr=array('.','..');
while($file=readdir($handle))
{
if(in_array($file,$piarr)==FALSE)
{
if(is_dir($dir.'/'.$file))
{
echo '目录名称: '.$file.'
';
$files=search_all_file($dir.'/'.$file);
if(isset($files[0]))
{
echo '该目录下的所有文件:'.'
';
foreach($files as $filel)
{
echo ' '.$filel;
}
}
search_all_dir($dir.'/'.$file);
}
}
}
}
else
{
echo $dir.'不是合法目录或不是目录,强制退出';
}
}
//遍历特定目录下的所有文件
function search_all_file($dir)
{
$files=array();
if(is_dir($dir))
{
$handle=opendir($dir);
$piarr=array('.','..');
while($file=readdir($handle))
{
if(in_array($file,$piarr)==FALSE)
{
if(is_dir($dir.'/'.$file)==FALSE)
{
$files[]=' '.$file.'
';
}
}
}
}
return $files;
}
回复讨论(解决方案)
使用目录函数写,也就是这样了
用目录迭代器简单点
$ite = new RecursiveDirectoryIterator($dir); $nbfiles=0; foreach (new RecursiveIteratorIterator($ite) as $filename=>$cur) { if(is_dir($filename)) continue; echo $filename . '<br>'; }
我一般使用 glob 函数遍历
$r = glob('images/*');for($i=0; $i<count($r); $i++) { if(is_dir($r[$i])) $r = array_merge($r, glob($r[$i] . '/*'));}print_r($r);
glob 另一个用法可以轻松的找到指定的文件
$p = '*/';$f = 'ide_tmp.php';$r = array();for($i=0; $i<3; $i++) { $t = glob($p.$f); if($t) $r = array_merge($r, $t); $p .= '*/';}print_r($r);
谢谢你的耐心回答,多谢 了,我的目的在于如何优化改进我的代码,函数不改变的情况下。谢谢
<?php //指定页面编码方式 header('Content-type:text/html;charset=utf-8'); $dir='f:/dir'; //方法调用 search_all_dir($dir); //遍历目录的方法 function search_all_dir($dir) { if(is_dir($dir)) { $handle=opendir($dir); $piarr=array('.','..'); while($file=readdir($handle)) { if(in_array($file,$piarr)==FALSE) { if(is_dir($dir.'/'.$file)) { echo '目录名称: '.$file.'<br>'; $files=search_all_file($dir.'/'.$file); if(isset($files[0])) { echo '该目录下的所有文件:'.'<br>'; foreach($files as $filel) { echo ' '.$filel; } } search_all_dir($dir.'/'.$file); } } } } else { echo $dir.'不是合法目录或不是目录,强制退出'; } } //遍历特定目录下的所有文件 function search_all_file($dir) { $files=array(); if(is_dir($dir)) { $handle=opendir($dir); $piarr=array('.','..'); while($file=readdir($handle)) { if(in_array($file,$piarr)==FALSE) { if(is_dir($dir.'/'.$file)==FALSE) { $files[]=' '.$file.'<br>'; } } } } return $files; }

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