Pass php variabe to JavaScript function with other parameter

Question

I have several groups of checkboxes, each group has unique class name, I would like to select all function for each group. I have a JavaScript function like this:

function toggle(source) {
    var checkboxes = document.getElementsByClassName(classname);
    for(var i=0, n=checkboxes.length;i<n;i++) {
        checkboxes[i].checked = source.checked;
    }
}

It works when <INPUT type="checkbox" onClick="toggle(this)" /> and I hard coded class name in javascript function.

I tried:

<INPUT type="checkbox" onClick="toggle(this,<?php echo $key ?>)" />

And change javascript function to function toggle(source, classname){...} and toggle() then use arguments[0] for source, arguments[1] for classname in original function. Neither of them worked.

What is the right way to add parameter to this function?

Why are you writing the element with all caps?

user2486953
– user2486953

2016-01-31 03:06:38 +00:00
Commented Jan 31, 2016 at 3:06 — user2486953
– user2486953, Commented Jan 31, 2016 at 3:06

Dan Ovidiu Boncut · Accepted Answer · 2016-01-31 02:58:15Z

1

I think you missed some quotes:

<INPUT type="checkbox" onClick="toggle(this,'<?php echo $key ?>')" />

answered Jan 31, 2016 at 2:58

Dan Ovidiu Boncut

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1 Comment

Dan Ovidiu Boncut Over a year ago

Glad to help :) Please consider accepting this answer.

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