Alternative Syntax for Control Structures
Syntax#
- structure: /* code */ endstructure;
Remarks#
When mixing the alternative structure for switch
with HTML, it is important to not have any whitespace between the initial switch($condition):
and first case $value:
. Doing this is attempting to echo something (whitespace) before a case.
All control structures follow the same general idea. Instead of using curly braces to encapsulate the code, you’re using a colon and endstructure;
statement: structure: /* code */ endstructure;
Alternative for statement
<?php
for ($i = 0; $i < 10; $i++):
do_something($i);
endfor;
?>
<?php for ($i = 0; $i < 10; $i++): ?>
<p>Do something in HTML with <?php echo $i; ?></p>
<?php endfor; ?>
Alternative while statement
<?php
while ($condition):
do_something();
endwhile;
?>
<?php while ($condition): ?>
<p>Do something in HTML</p>
<?php endwhile; ?>
Alternative foreach statement
<?php
foreach ($collection as $item):
do_something($item);
endforeach;
?>
<?php foreach ($collection as $item): ?>
<p>Do something in HTML with <?php echo $item; ?></p>
<?php endforeach; ?>
Alternative switch statement
<?php
switch ($condition):
case $value:
do_something();
break;
default:
do_something_else();
break;
endswitch;
?>
<?php switch ($condition): ?>
<?php case $value: /* having whitespace before your cases will cause an error */ ?>
<p>Do something in HTML</p>
<?php break; ?>
<?php default: ?>
<p>Do something else in HTML</p>
<?php break; ?>
<?php endswitch; ?>
Alternative if/else statement
<?php
if ($condition):
do_something();
elseif ($another_condition):
do_something_else();
else:
do_something_different();
endif;
?>
<?php if ($condition): ?>
<p>Do something in HTML</p>
<?php elseif ($another_condition): ?>
<p>Do something else in HTML</p>
<?php else: ?>
<p>Do something different in HTML</p>
<?php endif; ?>