pass php variable to javascript [duplicate]

Question

I have a dropdown list with name pid and a submit button in my form. when submit button is clicked i want to pass the value selected in the dropdown list (pid) to this var target_id in the javascript.

<script>
function send(fid)
{
var uid=fid;
alert('ID IS: '+uid);
}
</script>

echo "<select name='pid'>";
//this is in a for loop
echo "<option value=".$id.">".$id."</option>";
//for loop ends
</select>
<input type='submit' value='send' name='send' onclick='send(pid)' id='send'/>

what am i doing wrong here?

Could you post the full code, rather than leaving mysterious comments? Showing us what's happening in the loop might be more useful. — David Thomas
– David Thomas, Commented Jan 30, 2011 at 20:20
it is a very big code... i have grabbed the value from the dropdown and echoed it to verfiy it. the loop is all fine. I just want to execute a javascript function when submit is clicked. — Scorpion King
– Scorpion King, Commented Jan 30, 2011 at 20:34

Levi · Accepted Answer · 2011-01-30 20:45:16Z

2

Once the PHP renders into HTML it becomes less a question of passing PHP to Javascript and more a question or how to get the value from the HTML with Javascript. Would adding an onclick call to the function work for what you are trying to do?

<input type="submit" value="Submit" onclick="send(this.form.pid.value);return false;">

answered Jan 30, 2011 at 20:45

Levi

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Comments

IDev · Accepted Answer · 2011-01-30 20:18:24Z

0

this.options[this.selectedIndex].value

Please pass the value of selected index like this

answered Jan 30, 2011 at 20:18

IDev

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Comments

Muhamad Bhaa Asfour · Accepted Answer · 2011-01-30 20:36:30Z

0

you have to put pid.value as the send function parameter like this

onclick="send(pid.value)"

edited Jan 30, 2011 at 20:36

answered Jan 30, 2011 at 20:19

Muhamad Bhaa Asfour

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