誤差in_array檢查圖像的格式

Question

我見過的其他問題的答案，所以我分開爆炸功能，但仍然給下面的錯誤。我粘貼了文件上傳的整個代碼。

警告：爆炸（）預計參數2爲字符串，陣列中的C中給出：\ XAMPP \ htdocs中\ hiddenprocess.php上線22

警告：端（）預計參數1是數組，在C空給出：\ XAMPP \ htdocs中\ hiddenprocess.php上線25

下面是代碼：

<?php 




    if (empty($_FILES['Upload_Property_Images']['name'])) 
    { 
     echo 'You have\'nt Entered Value for upload field'; 
    } 

    else 

    { 


foreach($_FILES as $file) 

{ 

// Allowed file types 
$whitelist = array("jpg","png"); 
$temp = explode('.', $file['name']); 
    // Match uploaded file extension 

    if (in_array(end($temp), $whitelist)) 

    { 
     // Count total uploads 
     if (count($_FILES['Upload_Property_Images']['name'])==6) 
     { 
     // Code for uploading here 
      echo 'files uploaded successfully'; 
     } 

     else 
     { 
     // Count error 
     echo 'You\'r Only Allowed Six Images'; 
     } 

    } 



    else 
    { 
     // File extension error 
     echo 'Your Only Allowed JPG and PNG'; 
    } 


} 

} 

?> 

Answer 1

這裏是你的代碼的工作版本。我一共有四個變化，標誌着中提出的意見與**

if (empty($_FILES['Upload_Property_Images']['name'])) 
{ 
    echo 'You have\'nt Entered Value for upload field'; 
    exit(); 
} 
else 
{ 
    foreach($_FILES['Upload_Property_Images']['name'] as $file) // **CHANGED 
    { 
     if ($file) // **ADDED 
     { 
      // Allowed file types 
      $whitelist = array("jpg","png"); 
      $temp = explode('.', $file); // **CHANGED 

      // Match uploaded file extension 
      if (in_array(end($temp), $whitelist)) 
      { 
       // Count total uploads 
       if (count($_FILES) <= 6) // **CHANGED 
       { 
        // Code for uploading here 
        echo 'files uploaded successfully'; 
       } 
       else 
       { 
        // Count error 
        echo 'Your Only Allowed Six Images'; 
       } 
      } 
      else 
      { 
       // File extension error 
       echo 'Your Only Allowed JPG and PNG'; 
      } 
     } 
    } 
} 

Answer 2

我覺得應該是：爲驗證圖像功能

foreach($_FILES['Upload_Property_Images']['name'] as $file) { 
    ... 
    $temp = explode('.', $file); // not $file['name'] 
    ... 
} 

Answer 3

例如：

function validate() 
{ 
    $errors = array(); 
    foreach($_FILES['Upload_Property_Images']['name'] as $file) // **CHANGED 
    { 
     if ($file) // **ADDED 
     { 
      // Allowed file types 
      $whitelist = array("jpg","png"); 
      $temp = explode('.', $file); // **CHANGED 

      // Match uploaded file extension 
      if (in_array(end($temp), $whitelist)) 
      { 
       // Count total uploads 
       if (count($_FILES) > 6) // **CHANGED 
       { 
        // Count error 
        $errors[] = 'Your Only Allowed Six Images'; 
       } 
      } 
      else 
      { 
       // File extension error 
       $errors[] = 'Your Only Allowed JPG and PNG'; 
      } 
     } 
    } 
    if (empty($errors)) 
    { 
     return TRUE; 
    } 
    else 
    { 
     return array_unique($errors); 
    } 
} 

$validation = validate(); 
if ($validation === TRUE) 
{ 
    // uplaod images here 
} 
else 
{ 
    print_r($validation); 
}