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我正在使用 getimagesize 来验证图像类型，但不知道如何为多个文件编写脚本。基本上，我有一个允许上传多个图像文件的表单，如下所示。

  <input type="file" name="photo[]" class="file" />
  <input type="file" name="photo[]" class="file" />
  <input type="file" name="photo[]" class="file" />

然后我用它来验证它并通过 phpmailer 发送。

<?php
ob_start();
require("class.phpmailer.php");

$errors = array();

if ('POST' === $_SERVER['REQUEST_METHOD'])
{
    $firstname           = sanitize($_POST['firstname']);
    $lastname           = sanitize($_POST['lastname']);
    $email                 = sanitize($_POST['email']);

    if (empty($firstname))
    {
        $errors['firstname'] = "Please provide first name.";
    }
    if (empty($lastname))
    {
        $errors['lastname'] = "Please provide last name.";
    }
    if (!filter_var($email, FILTER_VALIDATE_EMAIL))
    {
        $errors['email'] = "Please provide a valid email address.";
    }

    if (count($errors) === 0)
    {


$imageinfo = array();
  $my_files = $_FILES['photo']['tmp_name'];
  foreach($my_files as $single_file) {
  if(!empty($single_file)) {
  $imageinfo[$single_file] = getimagesize($single_file);
  if ($single_file['mime'] != 'image/png' && $single_file['mime'] != 'image/jpeg')
  { echo "Invalid Image File";
  exit();
  }  }
  }


foreach($_FILES['photo']['tmp_name'] as $photo) 
if(!empty($photo)) {
$mail->AddAttachment($photo);


$message = 'some message';

$mail = new PHPMailer();

$mail->SetFrom($email);
$mail->AddAddress($from);

$mail->Subject  = "Submitted";
$mail->Body     = $message;
$mail->WordWrap = 50;
}

$mail->Send();

header("Location: thankyou.php");
exit();     
}}

function sanitize($value)
{
    return trim(strip_tags($value, $problem=''));
}
?>

我收到警告的错误消息：getimagesize() 期望参数 1 是字符串，数组给定 我知道这是因为我的表单正在传递一个数组。如何更改脚本以适用于多个文件/数组？请帮忙。谢谢。

4

1 回答 1

5

有多个文件，$_FILES['photo']['tmp_name']所以它是一个数组。

设计为getimagesize()只接受一个文件。

所以你需要将每个文件传递给函数

$imageinfo = array();
$my_files = $_FILES['photo']['tmp_name'];
foreach($my_files as $single_file) {
  if(!empty($single_file)) {
    $imageinfo[$single_file] = getimagesize($single_file);
  }
}

print_r($imageinfo); // now you have info of all files in an array.

或者你可以试试

$imageinfo0 = getimagesize($_FILES['photo']['tmp_name'][0]);
$imageinfo1 = getimagesize($_FILES['photo']['tmp_name'][1]);
$imageinfo2 = getimagesize($_FILES['photo']['tmp_name'][2]);

.... 等等..

于 2013-04-09T05:17:12.010 回答