[PHP / JavaScript]：在其他文件的JavaScript函数中获取PHP会话值

Question

I have a PHP file and it holds a value in this session variable: $_SESSION['image_value'].

I want this session value in a JavaScript function. Actually, I want to match a string in my JavaScript function with this session value.

Anyway I can do this?

Answer 1

You could use json_encode():

<script type="text/javascript">
    var image_value = <?php echo json_encode($_SESSION['image_value'], JSON_HEX_TAG); ?>;
</script>

But be aware that PHP is entirely server-side and javascript is entirely client-side. That variable will be set when the page loads and any javascript modifications to it will not be preserved in the session.