使用php在onclick事件中提供变量

Question

I am trying to pass a variable through the onclick function into javascript.

So I am trying to pass

onclick = "purchase_song(<?php echo $row['filename']; ?> , <?php echo $row['price'] ?> )"

note the function works fine if I pass it a non php variable

onclick = "purchase_song( 'filename'  , 1)" 

And I use a similar technique to pass variables through hyperlinks and the GET function. Is it not possible to use PHP inside a javascript onlick? If so, what am I doing wrong.

Thanks,

Answer 1

If the values are valid strings then you are doing everything right except one thing : to pass php input as a string argument to the javascript function you should wrap it in single quotes ':

onclick = "purchase_song('<?php echo $row['filename']; ?>' , '<?php echo $row['price'] ?>')"