14 replies to this topic

[Xav]

Hi, it's Xav. Now here's something pointless, but interesting nevertheless. It is actually possible to use another syntax when writing control structures in PHP! This could potentially be useful for VB programmers who want an easy way into PHP, before they learn the {} syntax.

Example 1

So, here's a normal If statement:

<?php

if ($forum == "CodeCall")
{
   echo "This is the best forum!";
}

?>

However, you can also do it like this:

<?php if ($forum == "CodeCall"): ?>

This is the best forum!

<?php endif; ?>

The text inbetween the two PHP tags will only be printed if the variable $forum contains the value "CodeCall". This makes the two above statements identical.

Example 2

Here's another normal If statement, then:

if ($forum == "CodeCall")
{
 echo "This is the best forum!";
}
else
{
 echo "This is not the best forum!";
}

But we can rewrite it using a VB-like syntax, like this:

<?php

if ($forum == "CodeCall"):

    echo "This is the best forum!";

elseif ($forum == "DiC"):

    echo "This is a load of rubbish!";

else:

    echo "I don't know this forum!";

endif;

?>

So, what's happened here:

• The curly braces { } have disappeared from the code.
  
• A colon : has been added after every condition statement.
  
• We now have an "endif" statement to mark the end of the decision. This is followed by a semi-colon ;.

Conclusion

It may not be as nice as the { } syntax, but, like all other things in programming, has a use. Have fun!

Test yourself: Write a condition that rewrites the example above using a switch statement, but using the alternative syntax. Refer to PHP: Alternative syntax for control structures - Manual if you are stuck.

~Xav

+rep if useful. Leave any comments below!

[chili5]

The only thing with not using the { } is that the code is a lot harder to read. If VB programmers are gonna learn PHP, they might as well learn it with the correct PHP syntax. :)

[Xav]

I thought it would be useful for people to know anyway.

BTW, did you +rep? :D

[John]

Or you can refer to my blog: PHP Colon Syntax

[Xav]

Woah, didn't see that - but my one's better, I think. ;)

[Xav]

Wa wa WHAT? Why not?

[chili5]

C'mon it's not that big of a deal. :eek:

[Xav]

Yes it IS! :D

[John]

I reserve +reputation for posts I find useful. That said, if you ever post something I find useful, you will receive reputation from me (as probably Jordan too). However, since tutorials are awarded 25 points toward winning the competition, Jordan sees no reason to award you with another 20 points for the same thing.

[Xav]

Aw, c'mon John, be the nice guy you are!

[adserverexpert]

its simple one.