PHP刪除2個文件夾中所有x天以上的文件

Question

我正在嘗試使用此代碼刪除2個文件夾中所有超過x天的文件，但出現錯誤：

PHP解析錯誤：語法錯誤，第6行的E：\\ home \\ ca \\ web \\ cm \\ cache.php中出現意外的T_PUBLIC

為什么？

<?php
$pastas = array("gallery-images/","resources/cache/");
foreach($pastas as $pasta){
   $this->deleteFrom($pasta);
}
public function deleteFrom($path){
$expiretime=10080; //expire time in minutes, 7 days = 7*24*60

$tmpFolder=$path.'/';
$fileTypes="*.*";

foreach (glob($tmpFolder . $fileTypes) as $Filename) {

// Read file creation time
$FileCreationTime = filectime($Filename);

// Calculate file age in seconds
$FileAge = time() - $FileCreationTime;

// Is the file older than the given time span?
if ($FileAge > ($expiretime * 0)){

// Now do something with the olders files...

echo "The file $Filename is older than $expiretime minutes\n";

//delete files:
unlink($Filename);
}

}
}
?>

Answer 1

您的函數定義不在類中，因此您需要刪除PUBLIC

public function deleteFrom($path){

至

function deleteFrom($path){

另外$this->是不正確的，您需要刪除它們並以

deleteFrom($pasta);

檢查此處如何在PHP中使用“公共”，“私人”等http://php.net/manual/zh/language.oop5.visibility.php

Answer 2

這是因為這里沒有使用class，所以不需要使用$this來調用函數，只需使用deleteFrom()請參見下面的代碼

foreach($pastas as $pasta){
   deleteFrom($pasta);
}

Answer 3

如果要使用一個類，可以編寫如下內容：

$pastas = array("gallery-images/", "resources/cache/");

$File = new File();
foreach ($pastas as $pasta)
{
   $File->deleteFrom($pasta);
}

class File
{
  public function deleteFrom($path)
  {
    $expiretime=10080; //expire time in minutes, 7 days = 7*24*60

    $tmpFolder=$path.'/';
    $fileTypes="*.*";

    foreach (glob($tmpFolder . $fileTypes) as $Filename)
    {
      // Read file creation time
      $FileCreationTime = filectime($Filename);

      // Calculate file age in seconds
      $FileAge = time() - $FileCreationTime;

      // Is the file older than the given time span?
      if ($FileAge > ($expiretime * 0))
      {
        // Now do something with the olders files...
        echo "The file $Filename is older than $expiretime minutes\n";

        //delete files:
        unlink($Filename);
      }
    }
  }
}