# 1. Classic
# 2. Weird
# 3. With Breaks
# 4. Short
# 5. Even Shorter
1.) Classic
===========
<?php
if($foo) {
// $foo
} else {
// empty
}
?>
2.) Weird
=========
<?php
if($foo):
// $foo
else:
// empty
endif;
?>
3.) With Breaks
===============
<?php if($foo): ?>
<!-- $foo -->
<? else: ?>
<!-- empty -->
<? endif; ?>
4.) Short
=========
<?php
echo $foo ? $foo : 'fallback';
// is $foo empty
echo !empty($foo) ? $foo : 'empty'; // $foo or 'empty'
// is 5 greater than 1?
echo 5 > 1 ? 'yes' : 'no'; // 'no'
// Does 'a' equal 'b'?
echo 'a' == 'b' ? 'equals' : 'no'; // 'no'
?>
5.) Even Shorter ("Elvis operator")
<?php
echo $foo ?: 'fallback'; // $foo or 'fallback'
?>
5 kurze If / Else (Wenn / Dann) Schreibweise in PHP (inkl. Elvis operator)
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