javascript not running in php program

Question

i have following java script in my php program for Given integers n, l and r, find the number of ways to represent n as a sum of two integers A and B such that l ≤ A ≤ B ≤ r. and my code is...

<script>
function count(n, l, r) {
var result = 0;
for(var a = l; a <= r; a++){
    for(var b = a; a <= r; b++){
        if(a + b == n){
            result++;
        }
    }
}
return result;
}
</script>
<?php
echo "<script>count(6,2,4);</script>";
?>

and i want to run this code on page load and call a function count() on load and give output. i don't know what to do.

Why would JS ever run in PHP...? That's like telling somebody to speak German in English. — Jonnix, Jun 22 '16 at 10:22
i change my code but now it's continues running not showing any output. — Divyesh Jesadiya, Jun 22 '16 at 10:44

score 1 · Answer 1 · answered Jun 22 '16 at 10:22

1

You need to echo content that you want written to the resulting page.

Right now you're trying to run Javascript in your PHP script which makes zero sense.

answered Jun 22 '16 at 10:22

Jonathon Reinhart

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i change my code but now it's continues running not showing any output. – Divyesh Jesadiya Jun 22 '16 at 10:43
Obviously. Where did you write any code that is supposed to output anything? I suggest you do some tutorials on Javascript or PHP (by themselves) before trying to use both at once. – Jonathon Reinhart Jun 22 '16 at 10:46

score 0 · Answer 2 · edited May 23 '17 at 11:58

0

take a look how to get onload event https://stackoverflow.com/a/807895/1074179 or you can add jquery lib to your code and then do like https://api.jquery.com/ready/

edited May 23 '17 at 11:58

Community

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answered Jun 22 '16 at 10:25

Alexandr

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i change my code but now it's continues running not showing any output. – Divyesh Jesadiya Jun 22 '16 at 10:43

score 0 · Answer 3 · answered Jun 22 '16 at 10:28

0

you can't run directly a HTML tag tag inside a php script. You must have to print or echo that html. for example if you want print <h1>Hello World</h1> then you have echo the html as <?php echo "<h1>Hello World</h1>"; ?> like this you have write <?php echo "<script>alert('hi');</script>";?>

answered Jun 22 '16 at 10:28

Biswanath Sahoo

1
2

1

Change your code to: count(6,2,4);"; ?> – Biswanath Sahoo Jun 22 '16 at 10:32
i change my code but now it's continues running not showing any output. – Divyesh Jesadiya Jun 22 '16 at 10:43

javascript not running in php program

3 Answers3