PHP control structure statement

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 to endif;, endwhile;, endfor;, endforeach;, or endswitch;, respectively.

	      	<?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.

			if ($a == 5):
			    echo "a equals 5";
			    echo "...";
			elseif ($a == 6):
			    echo "a equals 6";
			    echo "!!!";
			    echo "a is neither 5 nor 6";

Mixing syntaxes in the same control block is not supported.

			     $value = 'Jesus';

			     // This is a simple if statement
			     if( isset( $value ) )
			          print $value;

			     print '<br />';

			     // This is an alternative
			     isset( $value ) AND print( $value );

			$bar = 'bar';
			$foo = 'foo';

			if (isset($bar)):
			   if (isset($foo)) echo "Both are set.";
			elseif (isset($foo)):
			   echo "Only 'foo' is set.";
			   echo "Only 'bar' is set.";


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