Boolean¶

A boolean is a value that is either true or false.

PHP’s boolean are constants. They may be prefixed by \\, and are case-insensitive. They can’t be redefined in namespaces.

There are rules to convert any data to a boolean.

Booleans have a related scalar type : bool. There is also a special false type.

<?php

$a = True;
$b = \FALSE;

?>

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