Alternative syntax for control structures
PHP offers an alternative syntax for some of its control
structures; namely, if,while, for,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 toendif;, endwhile;,endfor;, endforeach;, orendswitch;, respectively.

In the above example, the HTML block "A is equal to 5" is nested within anif 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 andelseif as well. The following is anif structure with elseif andelse in the alternative format:




