php form and onsubmit javascript function call

Question

I've created a form with html being echoed in PHP and am trying to call a Javascript function in the same form. I've copied and pasted the js part which I have put in my head tags at the top of the php file.

<script>
    function validate(){
        alert("You need to enter the date in format dd-mm-yyyy");
    }
</script>

Further on I have this at the start of the form

echo "<form method=\"post\" action=\"index.php\" onsubmit=\"validate()\">
        <br>
        <span>Name: <input type=\"text\" name=\"name\" value=\"$name\"></span>"

Is it possible to call javascript from php in the same document? Cheers

calling JavaScript function inside PHP (in server side) is like to call undefined function, but if you mean calling the function in client side, then yes you can — user1646111
– user1646111, Commented Mar 10, 2013 at 18:55
@Akam The thing is I use PHP to create a form if a button is clicked because it processes using the same file. — user1060187
– user1060187, Commented Mar 10, 2013 at 18:57

dp4solve · Accepted Answer · 2013-03-11 05:45:26Z

1

you have to try this inside php code ..

       echo "<script type='text/javascript'>
        function validate(){
         alert('You need to enter the date in format dd-mm-yyyy');
                        }
     </script>";

Hope it use-full fro you..

answered Mar 11, 2013 at 5:45

dp4solve

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Dawson · Accepted Answer · 2013-03-10 19:18:33Z

0

For the sake of argument, you tried moving your script to the bottom of your page?

echo ... validate()
...
<script>function validate()</script>

answered Mar 10, 2013 at 19:18

Dawson

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Comments

Starx · Accepted Answer · 2013-03-10 19:51:37Z

0

You need to make your function available when it is executed.

window.onload = function() {
    function validate(){
        alert("You need to enter the date in format dd-mm-yyyy");
    }
};

answered Mar 10, 2013 at 19:51

Starx

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