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Sometimes the standard if() control structure in PHP can use up a LOT of lines, reducing the
simplicity and clarity of your code.
Imagine a config file which has setting for both your local test server, and the live production
server:
| <?php
// messy way
$local = true;
if($local) {
$admin_email = "justin@indent.com.au"; // me
} else {
$admin_email = "someone@somewhere.com"; // client
}
if($local) {
$base_url = "http://127.0.0.1/clientname/";
} else {
$base_url = "http://www.somewhere.com";
}
// etc
?> | |
Instead, I can reduce these 5 line config statements to just one line, and make things a LOT
easier to read:
| <?php
// clean way
$local = true;
$admin_email = ($local) ? "justin@indent.com.au" : "someone@somewhere.com";
$base_url = ($local) ? "http://127.0.0.1/clientname/" : "http://www.somewhere.com";
?> | |
It's a little bit hidden in the PHP docs, so not many people know about it. For more info, try:
http://www.weberdev.com/Manuals/PHP/language.expressions.html
Enjoy!
Justin French
Indent.com.au
Australia |
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| | | | Juan Pablo Aqueveque wrote : 897
pretty cool, thanks justin.
| | | | Eric Grigsby wrote : 899
Would the same principal if your IF statement was nested?
| | | | Philip Evans wrote : 900
Yes it will do. Because all you put either side of the colon are two values. It doesn`t matter if you use another if statement (either format) to generate that value.
| | | | Sarah King wrote :952
Just a pointer for people who know other languages. This is php`s version of an iif() statement which I`ve seen all over the place.
If you`re struggling with something and know the syntax from another language then you`ll be able to do it in PHP. Can`t find it? Post a question on the forums.
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