Directory traversal to find implementation code in php_PHP tutorial

This article uses two important directory operation functions in php to realize the implementation method of traversing the directories and files in the directories. We have introduced the functions in detail. Let’s look at the examples below

glob() function returns the file name or directory matching the specified pattern.

The code is as follows

代码如下

复制代码

function listFiles($path){ $result = array(); foreach(glob($path.''."*") as $item){ $result[strtolower($item)] = $item; if(is_dir($item)){ $result += listFiles($item); } } return $result; } $path = 'E:webdianle'; foreach(listFiles($path) as $item){ echo $item.' '; } function listFiles($path){ $result = array(); foreach( scandir($path) as $item ){ if($item != '.' && $item != '..' ){ $item = $path.''.$item; $result[strtolower($item)] = $item; if(is_dir($item)){ $result += listFiles($item); } } } return $result; } $path = 'E:webdianle'; foreach(listFiles($path) as $item){ echo $item.' '; } ?>

Copy code

function listFiles($path){
$result = array();
foreach(glob($path.''."*") as $item){
$result[strtolower($item)] = $item;
if(is_dir($item)){
$result += listFiles($item);
}
}
return $result;
}
$path = 'E:webdianle';
foreach(listFiles($path) as $item){
echo $item.'
';
}

function listFiles($path){
$result = array();
foreach( scandir($path) as $item ){
if($item != '.' && $item != '..' ){
$item = $path.''.$item;
$result[strtolower($item)] = $item;
if(is_dir($item)){
$result += listFiles($item);
}
}
}
return $result;
}
$path = 'E:webdianle';
foreach(listFiles($path) as $item){
echo $item.'
';
}
?>

scandir(directory,sort,context)

A function used

参数	描述
directory	必需。规定要扫描的目录。
sort	可选。规定排列顺序。默认是 0 （升序）。如果是 1，则为降序。
context	可选。规定目录句柄的环境。context 是可修改目录流的行为的一套选项

The scandir() function returns an array containing the files and directories in the specified path.

If successful, return an array, if failed, return false. If

directory

is not a directory, returns Boolean false and generates an E_WARNING level error.

Grammar

glob(pattern,flags)

参数	描述
file	必需。规定检索模式。
size	可选。规定特殊的设定。 GLOB_MARK - 在每个返回的项目中加一个斜线 GLOB_NOSORT - 按照文件在目录中出现的原始顺序返回（不排序） GLOB_NOCHECK - 如果没有文件匹配则返回用于搜索的模式 GLOB_NOESCAPE - 反斜线不转义元字符 GLOB_BRACE - 扩充 {a,b,c} 来匹配 'a'，'b' 或 'c' GLOB_ONLYDIR - 仅返回与模式匹配的目录项 GLOB_ERR - 停止并读取错误信息（比如说不可读的目录），默认的情况下忽略所有错误 注释：GLOB_ERR 是 PHP 5.1 添加的

Now look at another function

This function returns an array containing matching files/directories. Returns false if an error occurs.

Grammar

http://www.bkjia.com/PHPjc/631303.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/631303.htmlTechArticleThis article uses two important directory operation functions in php to traverse the directories and directories under the directory We have introduced the implementation method and function of the file below in detail. Let’s look at the actual implementation...

Parameters	Description
file	Required. Specifies the search mode.
size	Optional. Specifies special settings. GLOB_MARK - Add a slash to each returned item GLOB_NOSORT - Return files in their original order of appearance in the directory (not sorted) GLOB_NOCHECK - Returns the pattern used to search if no files match GLOB_NOESCAPE - backslash does not escape metacharacters GLOB_BRACE - expands {a,b,c} to match 'a', 'b' or 'c' GLOB_ONLYDIR - Return only directory entries matching the pattern GLOB_ERR - Stop and read error messages (such as unreadable directories), ignore all errors by default Note: GLOB_ERR was added in PHP 5.1