if statement in 1 line
<?php
$hour = 11;
print $foo = ($hour < 12) ? "Good morning!" : "Good afternoon!";
?>
return Good morning!
Denetim yapıları için diğer sözdizimi
PHP bazı denetim yapıları için farklı bir sözdizimi sağlar. Bu yapılar if, while, for, foreach ve switch yapılarıdır. Her durumda, bu farklı sözdiziminin basit şekli açılışta kullanılan kaşlı ayracın yerine iki nokta imi (:) ve kapanışta kullanılan kaşlı ayraç yerine de sırasıyla endif;, endwhile;, endfor;, endforeach; ya da endswitch; deyimlerinden birini kullanmaktır.
<?php if ($a == 5): ?>
A eşittir 5
<?php endif; ?>
Yukarıdaki örnekte, içeriği "A eşittir 5" olan HTML bloğu iki noktalı sözdimi kullanılarak yazılmış bir if deyiminin içine gömülmüştür. HTML bloğu yalnızca $a değişkeni 5'e eşit olduğunda gösterilecektir.
İki noktalı sözdimi, else ve elseif için de kullanılabilir. Birazdan vereceğimiz örnek, iki noktalı sözdizimi ile yazılmış elseif ve else içeren bir if yapısıdır:
<?php
if ($a == 5):
echo "a eşittir 5";
echo "...";
elseif ($a == 6):
echo "a eşittir 6";
echo "!!!";
else:
echo "a ne 5 ne de 6'dır";
endif;
?>
Daha fazla örnek için while, for ve if cümleciklerine bakabilirsiniz.
Denetim yapıları için diğer sözdizimi
28-May-2009 12:30
26-Mar-2009 09:43
It seems to me, that many people think that
<?php if ($a == 5): ?>
A ist gleich 5
<?php endif; ?>
is only with alternate syntax possible, but
<?php if ($a == 5){ ?>
A ist gleich 5
<?php }; ?>
is also possible.
alternate syntax makes the code only clearer and easyer to read
04-Feb-2009 01:12
The control structure should be like in BASIC languages:
<?php
if ($a == 12):
echo "a is 12\n";
end if;
while (true):
echo "loop loop loop\n";
end while;
?>
or just use end operator like in Ruby
<?php
if ($a == 12):
echo "a is 12\n";
end;
while (true):
echo "loop loop loop\n";
end;
?>
07-Nov-2008 02:05
Hello , when you going to make a script , you must try easist way to do and fastest way to parse ..
using alternative-syntax is very useful to shorten your code
e.g :
If you want to do:
<?php
$a=1 ;
if ($a==1) {
echo "<table border=1><tr><td>$a is equal to one </td></tr></table> " ;
}
?>
You can do it using alternative-syntax as following :
<?php
$a=1 ;
if ($a==1) :?>
<table border=1><tr><td><?echo $a ;?> is equal to one </td></tr></table>
<?php endif ; ?>
So the HTML code Won't excuted until the condition is true
[EDIT BY danbrown AT php DOT net: Contains a bug fix provided by (gmdebby AT gmail DOT com).]
28-Jan-2008 02:52
If you wan't to use the alternative syntax for switch statements this won't work:
<div>
<?php switch($variable): ?>
<?php case 1: ?>
<div>
Newspage
</div>
<?php break;?>
<?php case 2: ?>
</div>
Forum
<div>
<?php break;?>
<?php endswitch;?>
</div>
Instead you have to workaround like this:
<div>
<?php switch($variable):
case 1: ?>
<div>
Newspage
</div>
<?php break;?>
<?php case 2: ?>
</div>
Forum
<div>
<?php break;?>
<?php endswitch;?>
</div>
16-Oct-2007 11:40
[EDITOR'S NOTE: reference to deleted note removed]
The end_; structure sometimes makes it easier to tell which block statement end you are looking at. It's much harder to tell which nested block a } belongs to than an end_;
27-Jun-2005 11:32
If it needs saying, this alternative syntax is excellent for improving legibility (for both PHP and HTML!) in situations where you have a mix of them.
Interface templates are very often in need of this, especially since the PHP code in them is usually written by one person (who is more of a programmer) and the HTML gets modified by another person (who is more of a web designer). Clear separation in such cases is extremely useful.
See the default templates that come with WordPress 1.5+ (www.wordpress.org) for practical and smart examples of this alternative syntax.
