语法错误：在 javascript php 会话中

Question

I am using the following code in a seperate js file to use a php $_SESSION variable. However, I am getting a syntax error of SyntaxError: missing ; before statement SyntaxError: missing ; before statement . I have tried putting the ; in the usual place, but still the same.

What is the correct way to use a php session in js file. Thanks

var companycode = '<?php echo $_SESSION['ls_idcode_usr']?>';

Answer 1

There may be special characters in the value of the session variable. Use json_encode() to output a valid Javascript literal:

var companycode = <?php echo json_encode($_SESSION['ls_idcode_usr']);?>;

Answer 2

You can only use PHP in files ending in .php , otherwise the web server won't parse them looking for code to execute, and it'll just get passed down to the client.

You can certainly make a whatever.js.php file, where PHP will be involved in the production of the Javascript file that is passed down to the browser.