Introduction to Alternative syntax in PHP, Introduction to PHP alternative Syntax _php tutorial

Introduction to Alternative syntax in PHP, Introduction to PHP alternative syntax

Today looked at the WordPress code, there are some rare php substitution syntax,
Copy the Code code as follows:
<?php Else:?>

<?php the_content (__ (' Continue reading →', ' Thebox '));?>
<?php wp_link_pages (' before ' + '. __ (' pages: ', ' Thebox '), ' after ' = ') ';?>

<?php endif;?>

What does the colon and endif after else mean? Rookie one, have not seen, so on Google a bit, just understand that this is the substitution of PHP syntax,

The colon (:) equivalent to the left curly brace ({), endif equivalent less right operand curly braces (});

Let's take an example:
Copy the Code code as follows:
<?php if ($a <0):?>

is negative pull
Copy the Code code as follows:
<?php endif;?>

The above statement is equivalent to
Copy the Code code as follows:
<?php if ($a <0) {?>

is negative pull
Copy the Code code as follows:
<?php}?>

Is there an alternative syntax for those grammars in PHP?

Process Control (including If,while,forforeach,switch) has alternative syntax for several statements.

The basic form of alternative syntax:

The left curly brace ({) is replaced by a colon (:) and the right curly brace (}) is replaced by a endif;,endwhile;,endfor;,endforeach; and Endswitch;

While substitution syntax:
Copy the Code code as follows:
<?php while (expr):?>

Loop dot What

<?php Endwhile;?>

Other alternative syntaxes can be analogous.

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