10 recommended articles about php filetype() function

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() Solution: Before using these functions, use clearstatcache () to clear the impact of the cache http://www.bkjia.com/PHPjc/319689.htmlwww.bkjia.comtruehttp://www.bkjia.com/PHPjc/319689.htmlTechArticlestat(), lstat(), file_exists(), is_writab

1. 10 recommended articles about the php filesize() function

## Introduction: stat(), lstat(), file_exists(), is_writable(), is_readable(), is_executable(), is_file(), is_dir(), is_link(), filectime(), fileatime(), filemtime(), fileinode(), filegroup(), fileowner(), filesize(), filetype(), fi...

2. Recommended articles about the php filemtime() function 10 articles

Introduction: stat(), lstat(), file_exists(), is_writable(), is_readable(), is_executable(), is_file(), is_dir(), is_link(), filectime(), fileatime(), filemtime(), fileinode(), filegroup(), fileowner(), filesize(), filetype( ), fi...

3. Recommended articles about the php fileinode() function

Introduction: stat(), lstat(), file_exists(), is_writable(), is_readable(), is_executable(), is_file(), is_dir(), is_link(), filectime(), fileatime(), filemtime(), fileinode(), filegroup(), fileowner(), filesize(), filetype(), fi...

4. php collects remote pictures and saves them locally

# Introduction: /*** Download remote images to local * * @param $url string remote file address * @param $filename string saved file name (if empty, it is a randomly generated file name, otherwise it is the original file name) * @param $fileType array Allowed file types * @param $dirName string The path to save the file (the rest of the path is automatically generated based on the time system) * @param $type int The way to obtain the file remotely * @return json Returns the file name and file saving

5.

win7 change file type PHP file type verification class function based on file header

Introduction: win7 change file type: win7 Change file type PHP file type verification class function based on file header: I wrote a verification class here to determine the file format through the file header. (It is not 100% safe. If the user forges the file header, it can also pass the verification) Copy The code is as follows:

6.

ThinkPHP and PHPExcel conflict resolution

Introduction:: Solution to the conflict between ThinkPHP and PHPExcel: I have known for a long time that there is a class called PHPExcel (official website) that can be used to operate Excel, but I have never had the opportunity to try it. I found out after trying it today It is extremely powerful. The downloaded source code package contains detailed documentation and can achieve almost all functions that can be achieved by manual operation of Excel. A simple example of reading Excel is as follows: Copy the code as follows: $inputFileType = 'Excel2007'; $inputFileName = './public/files/import_use

##7.

Recursively delete directories and files under directories in acronis disk director rrmdir php

Introduction: acronis disk director: acronis disk director rrmdir Recursively delete directories and files in the directory in php: Copy the code as follows: function rrmdir($dir) { if (is_dir($dir)) { $objects = scandir($dir); foreach ($objects as $object) { if ($object != “.” && $object != “..”) { if (filetype($dir.”/”.$objec

8. php detects file types through file headers Universal code classes (zip, rar, etc.

Introduction: PHP detects file types through file headers. Common code classes (zip, rar, etc.: Sometimes we are not perfect in doing this. Some people may save some files, but they pass Modify the extension so that it is within our file type. It cannot be displayed during actual access (because the extension does not match the file content). The following php class may be able to help us. 1. First, the php detection class. Below, the above mapping relationship between file headers and file types comes from the Internet. If you have a new file to check, you only need to add the mapping. If you need to know the file header information, you can use the tool: winhex to open the standard file search, such as: Code: Copy

9. Simple PHP upload image, delete image implementation code

Introduction:: Simple PHP upload Image, delete image implementation code: Upload image: Copy the code as follows: if (!empty($_FILES["img"]["name"])) { //Extract the file domain content name and determine $path=”uppic /"; //Upload path if(!file_exists($path)) { //Check whether the folder exists, if not, create it and give it the highest permissions mkdir("$path", 0700); }//END IF //File formats allowed to be uploaded$tp = arr

##10. The function to search for files of the specified type in the specified directory under the Ministry of Human Resources and Social Security No. 10774 document php

Introduction: Document No. 10774 of the Ministry of Human Resources and Social Security: Document No. 10774 of the Ministry of Human Resources and Social Security implements a function to search for files of a specified type in a specified directory under PHP: Copy the code The code is as follows: function bdir($dir,$typearr){ $ndir = scandir($dir); foreach ($ndir as $k => $v){ if ($v == '.' || $v = = '..'){ continue; } if (filetype($dir.$v) == 'file'){ $arr = explode('.'

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