elseif/else if
if statement in 1 line
<?php
$hour = 11;
print $foo = ($hour < 12) ? "Good morning!" : "Good afternoon!";
?>
return Good morning!
Alternative Syntax für Kontrollstrukturen
PHP bietet eine alternative Syntax für einige seiner Kontrollstrukturen an, namentlich für if, while, for, foreach und switch. In jedem Fall ist die Grundform der alternativen Syntax ein Wechsel der öffnenden Klammer gegen einen Doppelpunkt (:) und der schließenden Klammer in endif;, endwhile, endfor;, endforeach; respektive endswitch.
<?php if ($a == 5): ?>
A ist gleich 5
<?php endif; ?>
Im obigen Beispiel ist der HTML-Block "A ist gleich 5" in ein if-Statement verschachtelt, das in alternativer Syntax notiert ist. Der HTML-Block würde nur angezeigt werden, wenn $a gleich 5 ist.
Die alternative Syntax lässt sich ebenfalls auf else und elseif anwenden. Im Folgenden wird eine if-Struktur mit elseif- und else-Teilen im alternativen Format gezeigt:
<?php
if ($a == 5):
echo "a gleich 5";
echo "...";
elseif ($a == 6):
echo "a gleich 6";
echo "!!!";
else:
echo "a ist weder 5 noch 6";
endif;
?>
add a note
User Contributed NotesAlternative Syntax für Kontrollstrukturen
ej at iconcept dot fo
28-May-2009 02:30
28-May-2009 02:30
flyingmana
26-Mar-2009 10:43
26-Mar-2009 10:43
It seems to me, that many people think that
<?php if ($a == 5): ?>
A ist gleich 5
<?php endif; ?>
is only with alternate syntax possible, but
<?php if ($a == 5){ ?>
A ist gleich 5
<?php }; ?>
is also possible.
alternate syntax makes the code only clearer and easyer to read
SM
04-Feb-2009 02:12
04-Feb-2009 02:12
The control structure should be like in BASIC languages:
<?php
if ($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;
?>
mido_alone2001 at yahoo dot com
07-Nov-2008 03:05
07-Nov-2008 03:05
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 $a ;?> is equal to one </td></tr></table>
<?php endif ; ?>
So the HTML code Won't excuted until the condition is true
[EDIT BY danbrown AT php DOT net: Contains a bug fix provided by (gmdebby AT gmail DOT com).]
jeremia at gmx dot at
28-Jan-2008 03:52
28-Jan-2008 03:52
If you wan't to use the alternative syntax for switch statements this won't work:
<div>
<?php switch($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>
spa
17-Oct-2007 01:40
17-Oct-2007 01:40
[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_;
skippy at zuavra dot net
27-Jun-2005 01:32
27-Jun-2005 01:32
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.