Javascript将内容写入PHP var以在IF语句中使用不起作用[关闭]

Question

this is the code:

    <script language="Javascript" src="http://gd.geobytes.com/gd?after=-1&variables=GeobytesCountry,GeobytesCity">
    </script>

    <?php
      $City = '<script language="Javascript">
        document.write(sGeobytesCity);
      </script>';

      if($City=='Tijuana'){echo'This is Tijuana';}

    ?>

I want to use the result from the document.write() inside a php var to validate the city, I'm sure I'm doing it right cause if I echo the $City var it prints the string perfectly well but it s not working when using the var inside the if statement.

Answer 1

PHP executes on the server and Javascript executes on the client. So you can pass values from PHP to Javascript, but not vice versa without AJAX or a POST or GET method.