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Editorial Team
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Asked: 2026-06-11T16:52:21+00:00

I am trying to call a javascript function from the onchange attribute of the

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I am trying to call a javascript function from the onchange attribute of the select tag ! My issue is that I am passing the name attribute of the select to the function which always go null.

<body>


<form action="" method="post">
<select name="slct" id="name" onchange="rohan('measurement_conversion', '<?php echo isset($_POST["slct"])?$_POST["slct"]:"null" ?>')">
<option value="yes" selected="selected"> yes </option>
<option value="nopes"> nopes </option>
<option value="may be"> May be </option>
<option value="dont know"> dont know </option>
</select>
</form>

<div id="abc">
</div>


</body>

And here my javascript function

<script>

function rohan(var1, var2)
{

    document.getElementById("abc").innerHTML=var1 + "            " + var2;
}

</script>

It always prints null..
Any help will be appreciated !

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1 Answer

  1. Editorial Team

    HTML:

    <body>
    <form action="" method="post">
        <select name="slct" id="name" onchange="rohan(this.value)">
            <option>Select</option>
            <option value="yes" selected="selected"> yes </option>
            <option value="nopes"> nopes </option>
            <option value="may be"> May be </option>
            <option value="dont know"> dont know </option>
        </select>
    </form>
</body>

    JS:

    <script>
    function rohan(value)
    {
        //you can get the value from arguments itself
        alert(value);
    }
</script>
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