PHP offers an alternative syntax for some of its control
structures; namely, if,
foreach, and switch.
In each case, the basic form of the alternate syntax is to change
the opening brace to a colon (:) and the closing brace to
endfor;, endforeach;, or
<?php if ($a == 5): ?>
A is equal to 5
<?php endif; ?>
In the above example, the HTML block "A is equal to 5" is nested within an
if statement written in the alternative syntax. The
HTML block would be displayed only if $a is equal to 5.
The alternative syntax applies to else and
elseif as well. The following is an
if structure with elseif and
else in the alternative format:
if ($a == 5):
echo "a equals 5";
elseif ($a == 6):
echo "a equals 6";
echo "a is neither 5 nor 6";
See also while,
for, and if for further examples.