添加更多图片由php形式

Question

我想准备5张照片上传表单，用户需要一次选择全部5张照片并提交表格 然后我需要将所有5张照片存储在目标目录中，方法是将图像重命名为“ 1.jpg，2.jpg，3.jpg，4.jpg，5.jpg“。我只存储一个图像，但在添加For循环以保存多个文件不工作....请支持。

//图片上传表单

<form action="saveinntion.php" method="post" enctype="multipart/form-data"> 

    <h1>Upload Your Innovation</h1 
    <fieldset> 
     <legend><span class="number">4</span>Upload Images</legend> 

     <input type="file" name="img1" id="img1" > 
     </br> 
     <input type="file" name="img2" id="img2"> 
     </br> 
     <input type="file" name="img3" id="img3"> 
     </br> 
     <input type="file" name="img4" id="img4"> 
     </br> 
     <input type="file" name="img5" id="img5"> 
     </br> 
    </fieldset> 
    <button type="submit">Submit</button> 
</form> 

saveinntion.php文件

<?php 
include("dbconnection.php"); 
$target_dir = "Upload/"; 
$img=$_POST['img']; 

for ($i = 0; $i < 5; $i++) { 
    $target_file = $target_dir . basename($_FILES['$img[]']["name"]); 
    $uploadOk = 1; 
    $imageFileType = pathinfo($target_file,PATHINFO_EXTENSION); 

    if (file_exists($target_file)) { 
     echo "Sorry, file already exists."; 
     $uploadOk = 0; 
    } 

    if ($_FILES['$img[]']["size"] > 500000) { 
     echo "Sorry, your file is too large."; 
     $uploadOk = 0; 
    } 

    if($imageFileType != "jpg" && $imageFileType != "jpeg") { 
     echo "Sorry, only JPG & JPEG files are allowed."; 
     $uploadOk = 0; 
    } 

    if ($uploadOk == 0) { 
     echo "Sorry, your file was not uploaded."; 
    } else { 
     if (move_uploaded_file($_FILES['$img[]']["tmp_name"], $target_file)) { 
      echo "The file ". basename($_FILES['$img[]']["name"]). " has been uploaded."; 
     } else { 
      echo "Sorry, there was an error uploading your file."; 
     } 
    } 
} 
header("Location: upload1.php?id=$msg"); 
?> 

Answer 1

你的问题是你的命名。作为@Twinfriends在命令中说，这是极不可能上传任何文件

用$ _FILES取代$ _FILES [ '$ IMG []'] [ 'IMG'。（$ I + 1）]在你的代码。

线＃5

$target_file = $target_dir . basename($_FILES['img'.($i+1)]["name"]); 

行＃13

if ($_FILES['img'.($i+1)]["size"] > 500000) { 

行＃25

if (move_uploaded_file($_FILES['img'.($i+1)]["tmp_name"], $target_file)) { 
    echo "The file ". basename($_FILES['img'.($i+1)]["name"]). " has been uploaded."; 

要重命名的文件。

$imageFileType = pathinfo($_FILES['img'.($i+1)]["name"],PATHINFO_EXTENSION); 
$target_file = $target_dir . ($i+1).".".$imageFileType;