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+--- Thread: Alternative Control Structures (/showthread.php?tid=34171)
Alternative Control Structures - El Forum - 09-21-2010
[eluser]Milos[/eluser]
Hi all.
I just started to use CodeIgniter so I can't understand something very basic.
I am doing tutorials...
Anyway code looks like this: (this is from a view "home.php")
<?php foreach ($rows as $r) : ?> //why are we closing PHP tag here?
<h1><?php echo $r->title; ?></h1>
<div><?php echo $r->contents; ?> //why I can't use alternative syntax <?= $r->contents?>
<?php endforeach; ?> // again why are we opening and closing PHP tag?
So what confuses me is that normal PHP short tags should be like this:
<?php foreach ($rows as $r) : // we are opening a foreach structure
//dosomething
endforeach; ?> // we are closing a foreach structure
So this makes for me a second problem to understand echo statement used inside.
I didn't find so many things to read about this.
Also I wander what is the code in CodeIgniter itself that allows this behavior, since if I look at it I may understand this better.
Thanks
Alternative Control Structures - El Forum - 09-21-2010
[eluser]Eric Barnes[/eluser]
This is php itself http://php.net/manual/en/control-structures.alternative-syntax.php
Alternative Control Structures - El Forum - 09-21-2010
[eluser]Milos[/eluser]
Thanks.
Still I don't understand why can't I echo like this:
Normally to echo, or print out a variable you would do this:
<?php echo $variable; ?>
With the alternative syntax you can instead do it this way:
<?=$variable?>
So in my case:
<?php echo $r->contents; ?>
<?= $r->contents?> don't work.
Alternative Control Structures - El Forum - 09-21-2010
[eluser]danmontgomery[/eluser]
Then you don't have short tags enabled in php.ini
Alternative Control Structures - El Forum - 09-21-2010
[eluser]Milos[/eluser]
:O)
I was stupid.
Thank you.
Alternative Control Structures - El Forum - 09-21-2010
[eluser]InsiteFX[/eluser]
You should not use the short tags, because some servers
have turned them off. stick to using <?php ;?> tags
to avoid errors later on.
InsiteFX