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Search for NO VALUE in the Dropdown Menu

Thread began 3/30/2018 6:30 am by vanroojdotcom | Last modified 3/30/2018 10:21 am by Ray Borduin | 1283 views | 3 replies |


Search for NO VALUE in the Dropdown Menu

I have a dropdown menu (that is pulled from a table) the first Value is manually imputted "ALL MAKES" and the Value itself is blank. This returns all the Makes from the database! Selecting BMW from the Dropdown list returns only BMWs. So far so good.

OK, in order to make the result page a little bit nicer, I add a line, you selected "X" from the database and that returned "y" results. This works too.

However, with the blank value and all the rows returning, I can't get the return message to work. It just adds the first car returned from the database.

I want to use something like
<?php if ($WADAproducts->getColumnVal("vehicleMake") == "" ) echo "A message here"; ?>

This works fine:
<?php if ($WADAproducts->getColumnVal("vehicleMake") == "BMW" ) echo "A message here"; ?>

But I can't work out how to get the VALUE = NOTHING into the statement.

The serach string URL is as follows:

So you can see in the URL there's no value for the vehicleMake, but I can't get the PHP code to recognise NO VALUE.

I want the code to be like:


<?php if ($WADAproducts->getColumnVal("vehicleMake") == "NO VALUE / BLANK / NOTHING" )





So the end product would be

You searched for ALL MAKES (values of makes is blank)


You search for BMW (value of makes is BMW)

Or even
<?php if ($WADAproducts->getColumnVal("vehicleMake") == "IS NOT BLANK / HAS AT LEAST SOMETHING IN IT" )

Many thanks

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Ray BorduinWebAssist

Can I see a copy of the page? Your code won't work because of your check:

<?php if ($WADAproducts->getColumnVal("vehicleMake") == "" ) echo "A message here"; ?>

This code checks the database field for vehicleMake, which will return a value since it is returning all makes. You probably want an IF statement that checks the WHERE clause to see if that is blank, not the database column.

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Yes, I've searched for a car that doesn't exist and that element actually is visible! So it's thinking, if the result of the database search is zero, show that element. But I need if the "Value of the actual search is zero" then return X. Or something.

I've attached the file.

The website is here (it's not finished yet!)

Attached Files
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Ray BorduinWebAssist

I think this would work:

if (strpos($WADAproducts->Statement,"WHERE") === false)

That will check to see if any WHERE clause (filter) is applied.

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