Question

80

Dropdown selected with URL parameter

rated 0 times [ 86] [ 6] / answers: 1 / hits: 8366 / 9 Years ago, mon, february 16, 2015, 12:00:00

How can I have my dropdown selected with an url parameter?
I found this:
Dropdown selected based on URL parameter - PHP or jQuery?

But it does not work for me. What am I doing wrong?
My url would be:

kontakt.php?Betreff=3

script:

var val = location.href.match(/[?&]Betreff=(.*?)[$&]/)[1];   // get params from URL

$('#Betreff').val(val);   //  assign URL param to select field

and:

<select class=mailstyle name=Betreff id=Betreff>

    <option value=1>First</option>

    <option value=2>Second</option>

    <option value=3>Third</option>

</select>

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ellisw

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answered 9 Years ago rocioblancac · Accepted Answer

Your regex is incorrect. You can use this function (from this question) to get the parameter value:

function getURLParameter(name) {

    return decodeURIComponent((new RegExp('[?|&]' + name + '=' + '([^&;]+?)(&|#|;|$)').exec(location.search)||[,])[1].replace(/+/g, '%20'))||null

}

You can then use that to set the value:

var val = getURLParameter('Betreff');

$('#Betreff').val(val);   //  assign URL param to select field