How to call a JavaScript function from PHP?

Question

How to call a JavaScript function from PHP?

The followi

Answer 1

Per now (February 2012) there's a new feature for this. Check here

Code sample (taken from the web):

<?php

$v8 = new V8Js();

/* basic.js */
$JS = <<< EOT
len = print('Hello' + ' ' + 'World!' + "\\n");
len;
EOT;

try {
  var_dump($v8->executeString($JS, 'basic.js'));
} catch (V8JsException $e) {
  var_dump($e);
}

?>

Answer 2

If you want to echo it out for later execution it's ok

If you want to execute the JS and use the results in PHP use V8JS

V8Js::registerExtension('say_hi', 'print("hey from extension! "); var said_hi=true;', array(), true);
$v8 = new V8Js();
$v8->executeString('print("hello from regular code!")', 'test.php');
$v8->executeString('if (said_hi) { print(" extension already said hi"); }');

You can refer here for further reference: What are Extensions in php v8js?

If you want to execute HTML&JS and use the output in PHP http://htmlunit.sourceforge.net/ is your solution

Answer 3

you can try this one also:-

    public function PHPFunction()
    {
            echo '<script type="text/javascript">
                 test();
            </script>'; 
    }
    <script type="text/javascript">
    public function test()
    {
        alert('In test Function');
    }
    </script>

Answer 4

try like this

<?php
 if(your condition){
     echo "<script> window.onload = function() {
     yourJavascriptFunction(param1, param2);
 }; </script>";
?>