Question

我的php上传表单正常工作（允许使用.jpg），但我不确定如何添加.JPG（大写问题）或.jpeg。

有人可以告诉我如何将这些扩展添加到以下代码中吗？

<?php
//–°heck that we have a file
if((!empty($_FILES["uploaded_file"])) && ($_FILES['uploaded_file']['error'] == 0)) {
  //Check if the file is JPEG image and it's size is less than 350Kb
  $filename = basename($_FILES['uploaded_file']['name']);
  $ext = substr($filename, strrpos($filename, '.') + 1);
  if (($ext == "jpg") && ($_FILES["uploaded_file"]["type"] == "image/jpeg") && 
    ($_FILES["uploaded_file"]["size"] < 16000000)) {
    //Determine the path to which we want to save this file
      $newname = dirname(__FILE__).'/upload/'.$filename;
      //Check if the file with the same name is already exists on the server
      if (!file_exists($newname)) {
        //Attempt to move the uploaded file to it's new place
        if ((move_uploaded_file($_FILES['uploaded_file']['tmp_name'],$newname))) {
           echo "It's done! The file has been saved!";
        } else {
           echo "Error: A problem occurred during file upload!";
        }
      } else {
         echo "Error: File ".$_FILES["uploaded_file"]["name"]." already exists";
      }
  } else {
     echo "Error: Only .jpg images under 15 Mb are accepted for upload";
  }
} else {
 echo "Error: No file uploaded";
}
?>

非常感谢你的帮助和时间！

Answer 1

除了@Swanny，你还有几个选择：

in_array方法（加上strtolower）：

if (in_array(strtolower($est),Array('jpg','jpeg')))

使用strcasecmp来消除案例：

if (strcasecmp($ext,'jpg') === 0 || strcasecmp($ext,'jpeg') === 0)

或者，good'ol'成为RegEx apprach（取消了$ext变量：

if (preg_match('/\.(jpe?g)$/i',$filename))

也可以像这样进行修改（添加以竖线（|）字符分隔的其他扩展名）

if (preg_match('/\.(jpe?g|gif|png)$/i',$filename))

Answer 2

你可能会改变第6行：

if (($ext == "jpg") && ($_FILES["uploaded_file"]["type"] == "image/jpeg") &&

为：

if (($ext == "jpg" || $ext == "jpeg" || $ext == "JPG") && ($_FILES["uploaded_file"]["type"] == "image/jpeg") &&

虽然如果你想进一步扩展这个，我建议使用一个文件类型数组并检查数组，这样更容易管理。特别是使用in_array函数http://php.net/manual/en/function.in-array.php

Answer 3

比较时将扩展名转换为小写。

$ext = strtolower($ext);

if ( ($ext == 'jpg' || $ext == 'jpeg') && ($_FILES["uploaded_file"]["type"] == "image/jpeg") && 
    ($_FILES["uploaded_file"]["size"] < 16000000)) {

Answer 4

试试这个。使用strtolower（）将当前文件的扩展名转换为小写，然后使用in_array（）检查接受的扩展数组：

<?php
$acceptedExts = array ('jpg','jpeg');

//–check that we have a file

if((!empty($_FILES["uploaded_file"])) && ($_FILES['uploaded_file']['error'] == 0)) {
  //Check if the file is JPEG image and it's size is less than 350Kb
  $filename = basename($_FILES['uploaded_file']['name']);
  $ext = strtolower (substr($filename, strrpos($filename, '.') + 1));
  if (in_array($ext,$acceptedExts) && ($_FILES["uploaded_file"]["type"] == "image/jpeg") && 
    ($_FILES["uploaded_file"]["size"] < 16000000)) {
    //Determine the path to which we want to save this file
      $newname = dirname(__FILE__).'/upload/'.$filename;
      //Check if the file with the same name is already exists on the server
      if (!file_exists($newname)) {
        //Attempt to move the uploaded file to it's new place
        if ((move_uploaded_file($_FILES['uploaded_file']['tmp_name'],$newname))) {
           echo "It's done! The file has been saved!";
        } else {
           echo "Error: A problem occurred during file upload!";
        }
      } else {
         echo "Error: File ".$_FILES["uploaded_file"]["name"]." already exists";
      }
  } else {
     echo "Error: Only .jpg images under 15 Mb are accepted for upload";
  }
} else {
 echo "Error: No file uploaded";
}
?>

请注意，它不适用于其他图像类型，因为您仍在检查文件类型是image / jpeg：

$_FILES["uploaded_file"]["type"] == "image/jpeg"

带有多个文件扩展名的PHP上传表单＆amp;大写

4 个答案: