Question

我可以在屏幕上显示图像，但我想使用session显示图像。请帮助我。

$_SESSION['user_name6'] = $_FILES["file"]["name"];



 if(isset($_SESSION['user_name6']))
    {
    echo "<img src=<?php echo $_SESSION[user_name6]; ?> width=300 height=400
    alt=Image path Invalid name=image />";
    }
    else
    {   
        print "no pic here";
    }

Answer 1

我不知道你会做什么，但这是最适合的方法

当您在表单中放置文件类型时，需要使用全局变量Files

<强> form.html

 <form action="process.php" method="post" enctype="multipart/form-data">
  <label for="picture">Picture:</label>
  <input type="file" name="picture" id="picture"><br>
  <input type="submit" name="submit" value="Upload">
</form>

<强> process.php

<?php
    session_start();
    //make sure you have created the **upload** directory
    $filename    = $_FILES["picture"]["tmp_name"];
    $destination = "upload/" . $_FILES["picture"]["name"]; 
    move_uploaded_file($filename, $destination); //save uploaded picture in your directory

    $_SESSION['user_name6'] = $destination;

    header('Location: display_picture.php');

<强> display_picture.php

<?php
session_start();
?>
<div>
  <img src="<?php echo $_SESSION['user_name6']; ?>" alt="picture"/>
</div>

如何在PHP中使用Session显示图像

1 个答案: