10 recommended articles about the php file_exists() function

定义和用法clearstatcache()函数的作用是：清除文件状态缓存。 PHP的缓存数据对更快更好的运行函数是非常有利的。如果一个文件在脚本中测试了多次，你也许会禁止对正确的结果进行缓存。为了实现这点，你可以使用clearstatcache()函数。 语法 clearstatcache()提示和注意 提示：执行缓存的函数： stat() lstat() file_exists() is_writable() is_readable() is_executable() is_file() is_dir() is_link() filectime() fileatime() filemtime() fileinode() filegroup() fileowner() filesize() filetype() fileperms() 案例 复制代码 代码如下: 上述代码将输出下面的结果：

1. 有关php clearstatcache()函数的文章推荐

简介：定义和用法clearstatcache()函数的作用是：清除文件状态缓存。 PHP的缓存数据对更快更好的运行函数是非常有利的。如果一个文件在脚本中测试了多次，你也许会禁止对正确的结果进行缓存。为了实现这点，你可以使用clearstatcache()函数。 语法 clearstatcache()提示和注意 提示：执行缓存的函数： stat() lstat() file_exists() is_wri...

2. PHP上传图片、删除图片简单实例

简介：简单PHP上传图片、删除图片实现代码上传图片：if (!empty($_FILES["img"]["name"])) { //提取文件域内容名称，并判断 $path=”uppic/”; //上传路径 if(!file_exists($path)) { //检查是否有该文件夹，如果没有就创建，并给予最高权限 mkdir(“$path”, 0700); }//END IF //允许上

3. Java 实例 - 检测文件是否存在

简介：以下实例演示了使用 File 类的 file.exists() 方法来检测文件是否存在：

4. PHP访客计数器

简介：<?php  //               PHP访客计数器  function num()  {   if(!file_exists("n.txt"))   {    $fp=fopen("n.txt","w");    fwrite($fp,"1");    fclose($fp);    $n=1;    ...

5. php 图片上传

简介：if (!empty($_FILES["img"]["name"])) { //提取文件域内容名称，并判断   $path="uppic/"; //上传路径   if(!file_exists($path))  {  //检查是否有该文件夹，如果没有就创建，并给予最高权限   mkdir("$path, 0700"); ...

6. 为什么使用mkdir后总是提示错误？？

简介：执行后文件能成功创建出来 但是总是给出错误提示 Warning: mkdir(): File exists in D:wamp64wwwaaa.php on line 26 明明应该不存在$name2的时候才回去执行这句话啊 {代码...}

7. 解决cannot mount volume over existing file, file exists /var/lib/docker/aufs/mnt/

简介：:本篇文章主要介绍了解决cannot mount volume over existing file, file exists /var/lib/docker/aufs/mnt/，对于PHP教程有兴趣的同学可以参考一下。

8. Solution to open_basedir restriction in effect in PHPExcel

Introduction:: This article mainly introduces open_basedir restriction in effect in PHPExcel For solutions, students who are interested in PHP tutorials can refer to it.

9. The solution to the problem that the file_exists function in PHP cannot detect file names containing Chinese characters

Introduction: PHP The solution to the problem that the file_exists function cannot detect file names containing Chinese characters: File_exists() is generally used in PHP to determine whether a file or folder exists. If the file or folder exists, it returns true, and if it does not, it returns false. Today, when implementing the file download function, I found that when the web page uses UTF8 encoding, the function cannot detect whether the file containing Chinese exists and always returns false. After a long time of modification, I discovered that it was because the full path was not encoded. Simply transcoding the file name was not enough. The following code cannot detect files containing Chinese

10. get_headers function determines whether the remote file exists

Introduction: :get_headers function determines whether the remote file exists: / determines whether the remote file exists function remote_file_exists($url) { $executeTime = ini_get('max_execution_time'); ini_set('max_execution_time', 0); $headers = @get_headers($url) ;                                                                                                                                                                                                                                   ##linux - varnish3.x.x The error varnishd dead but pid file exists

php - Determine whether there is a problem with the file on the server

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