Can JavaScript Directly Access PHP Variables?

PHP and JavaScript Variable Accessibility

Question:

Can PHP variables be accessed from JavaScript?

Answer:

Directly, it is not possible to access PHP variables in JavaScript.

Implementation:

To bridge the gap, you can:

• Echo PHP Variable to JavaScript:

  <script type="text/javascript">
   var php_var = "<?php echo $php_var; ?>";
  </script>

• Use AJAX:
  Load the variable through an AJAX request.
• Rhino Javascript Engine:
  Integrate Rhino, a JavaScript engine for Java, to access PHP variables.

Note:

• PHP variables must be echoed as strings within the script tag.
• Quotes within $php_var may break the script; consider using escaping functions.

The above is the detailed content of Can JavaScript Directly Access PHP Variables?. For more information, please follow other related articles on the PHP Chinese website!