PHP File Operations Summary (delete the specified file/Get folder under the filename/Read folder under the picture name) _php Tips

This article analyzes the method of PHP file operation. Share to everyone for your reference, specific as follows:

Delete a file

Unlink ()

Syntax: int unlink (string filename);

return value: Integer

Function type: file access. Such as:

Unlink ("Tmp/test.txt");

Second, get the file name under the folder

$dir = "message/"; Name of folder
if (Is_dir ($dir)) {
  if ($dh = Opendir ($dir)) {while
    ($file = Readdir ($DH))!== false) {
      echo file Name: $file <br> ";
    }
    Closedir ($DH);
  }

Third, read the name of the picture under the folder

<?php
$handle = opendir (' images/');//current directory while
  (false!== ($file = Readdir ($handle)) {//traverse the directory
   where the PHP file resides List ($filesname, $KZM) =explode (".", $file);//Gets the extension
    if ($kzm = = "gif" or $kzm = = "jpg" or $kzm = = "jpg") {//File filter
     if (!). Is_dir ('./'. $file))} {//folder filter
      $array []= $file//file name to be stored in array
      $i ++;//record total count
      }
 }} Print_r ($array);
? >

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I hope this article will help you with the PHP program design.