PHP显示已上传到文件的图像

Question

我有一些代码可让您将图像上载到文件，然后在上载后将其显示在页面上。唯一的问题是图像不会显示？

<?php 
$target_dir = "uploads/"; 
$target_file = $target_dir . basename($_FILES["fileToUpload"]["name"]); 
//echo $target_file; 
$uploadOk = 1; 
//$imageFileType = pathinfo($target_file,PATHINFO_EXTENSION); 




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






// Check file size 
if ($_FILES["fileToUpload"]["size"] > 700000000) { 
    echo "Sorry, your file is too large."; 
    $uploadOk = 0; 
} 





// Check if $uploadOk is set to 0 by an error 
if ($uploadOk == 0) { 
    echo "Sorry, your file was not uploaded."; 
// if everything is ok, try to upload file 
} else { 




    if (move_uploaded_file($_FILES["fileToUpload"]["tmp_name"], $target_file)) { 
     echo "The file ". basename($_FILES["fileToUpload"]["name"]). " has been uploaded."; 
    } else { 
     echo "Sorry, there was an error uploading your file."; 
    } 
} 



/* Displaying Image*/ 
//$image=$_FILES["fileToUpload"]["name"]; 
//  $img="uploads/".$image; 

echo "<br>"; 

         //echo'<br><img src="'.$img.'">'; 
         //echo "<br><img src=\"upload/$img\">"; 


echo '<br><img src="$target_file">'; 

这里是我已经被显示的图像的一部分：

/* Displaying Image*/ 

    echo "<br>"; 

    echo '<br><img src="$target_file">'; 

Answer 1

尝试：

echo '<br><img src="'.$target_file.'">'; 

或

echo "<br><img src='$target_file'>";