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php读取目录及子目录下所有文件名的方法

May 23, 2016 am 08:39 AM
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这篇文章主要介绍了php读取目录及子目录下所有文件名的方法,对比了几种常见的方法,最后实例总结了一个php读取目录及子目录下所有文件名的方法,非常具有实用价值,需要的朋友可以参考下

本文实例讲述了php读取目录及子目录下所有文件名的方法,分享给大家供大家参考。具体实现方法如下:

一般来说php中读取目录下的文件名的方式确实不少,最简单的是scandir,具体代码如下:

 代码如下:

$dir="./caxa/";
$file=scandir($dir);
print_r($file);

稍微复杂点的,来自于php手册:

代码如下:

$dir = "/etc/php5/";
// Open a known directory, and proceed to read its contents
if (is_dir($dir)) {
if ($dh = opendir($dir)) {
while (($file = readdir($dh)) !== false) {
echo "filename: $file : filetype: " . filetype($dir . $file) . "\n";
} closedir($dh);
}
}

这些都只能读取当前指定目录下的文件,对子目录中的文件则无法读取。原来自己写过一个循环删除所有目录的一段代码,需要逐个子目录删除所有文件,包括多层。但是只需要读出文件名,稍微复杂点,网上找到一个能用,原始代码有错误提示,改了一下引用&$data的地方,如下所示:

代码如下:

function searchDir($path,&$data){
if(is_dir($path)){
$dp=dir($path);
while($file=$dp->read()){
if($file!='.'&& $file!='..'){
searchDir($path.'/'.$file,$data);
}
}
$dp->close();
}
if(is_file($path)){
$data[]=$path;
}
}
function getDir($dir){
$data=array();
searchDir($dir,$data);
return   $data;
}
print_r(getDir('.'));

希望本文所述对大家的PHP程序设计有所帮助。

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