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Hrimthurs	6 May, 2008 - 10:00 AM Post #1
New D.I.C Head Joined: 10 Jan, 2008 Posts: 1	Hi there, This is a little hard to explain, but i'll give it a go. What i need to do is have a <select> dropdown with options, eg. CODE <select name="finish"> <option value="" selected="selected">Select a finish</option> <option value="white">White</option> <option value="black">Black</option> </select> Of which, the selected option is called in as a variable via php and echoed later on in the same page, which dynamically updates when you select a different option. I thought the code would look something like this CODE <?php echo $_GET['finish']; echo $finish; ?> But that method won't update dynamically. Is anyone able to help?
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mocker	6 May, 2008 - 10:54 AM Post #2
D.I.C Head Joined: 14 Oct, 2007 Posts: 219 Thanked 11 times My Contributions	If you want something on the page to update when you select a different option, you'll have to set some javascript to trigger. You can either have the javascript submit the form as soon as the select value is changed, then have php read in the value and update what you need, or you could have php write out a bunch of javascript variables, and have javascript change the page. ie.. output the javascript variables CODE echo 'var values[1] = "you selected 1"; '; echo 'var values[2] = "you selected 2"; '; echo 'function updateDiv( var_id){ document.someDiv.innerHTML = values[var_id]; }'; and your select box CODE <form name="form1"> <select name="finish" onChange="updateDiv(document.form1.finish.selectedIndex);"> ...etc of course you'll probably have you php coding loading the ids and options from some data source
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