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class conditional on URL parameter

Thread began 7/19/2010 10:58 am by Justin@AdventDesign | Last modified 7/20/2010 11:10 am by Jason Byrnes | 865 views | 3 replies |

Justin@AdventDesign

class conditional on URL parameter

I have a hard coded search on a page using a URL parameter as follows:

<a class="current" href="index.php">All</a>
<a href="index.php?S_application=Air%20Flow%20Management">Air Flow Management</a>
<a href="index.php?S_application=Splash%20Shield">Splash Shield</a>
<a href="index.php?S_application=Squeak%20and%20Rattle">Squeak and Rattle</a>
<a href="index.php?S_application=Cushion%20and%20Protection">Cushion and Protection</a>
<a href="index.php?S_application=Aesthetic%20or%20Cover">Aesthetic or Cover</a>
<a href="index.php?S_application=Acoustic%20Insulation">Acoustic Insulation</a>
<a href="index.php?S_application=Gasket%20or%20Seal">Gasket or Seal</a>
<a href="index.php?S_application=Other">Other</a>

As you can see, the default page I have the A tag with a class of "current" that highlights that link. I'd like a simple way to include the class on each A tag automatically or defaults to tagging the "All" A tag when there is no URL param included. So in other words, when a user clicks on "Splash Shield", that link is automatically tagged with the class "current". How would I do this?

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Jason ByrnesWebAssist

you would need to hand code a ternary expression to check the value of the $_GET['S_application'] variable. a ternary expression is a sort of short hand if statement. see this page for a more in depth explanation:
php-ternary-operator/

an example for your purposes would look like:

php:
<a href="index.php?S_application=Air%20Flow%20Management" <?php echo((isset($_GET['S_application']) && $_GET['S_application'] == "Air Flow Management")?"class=\"current\"":""?>>Air Flow Management</a>




the default would look like:

php:
<a href="index.php" <?php echo((!isset($_GET['S_application']))?"class=\"current\"":""?>>All</a><br />
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Justin@AdventDesign

Awesome

Initial test works like a charm. Thanks! (I've got to learn more PHP).

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Jason ByrnesWebAssist

glad to hear it is working.

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