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Logical Operators Without If in PHP Functions

Let's say we have a function with an if statement. Here it is:

<?php function func($a, $b) { if ($a > $b) { return true; } else { return false; } } ?>

As you already know from previous lessons, if constructs that return boolean values can be rewritten in a shortened form.

Let's do this:

<?php function func($a, $b) { return $a > $b; } ?>

Given the following function:

<?php function func($a, $b) { if ($a === $b) { return true; } else { return false; } } ?>

Rewrite its code in a shortened form according to the studied theory.

Given the following function:

<?php function func($a, $b) { if ($a !== $b) { return true; } else { return false; } } ?>

Rewrite its code in a shortened form according to the studied theory.

Given the following function:

<?php function func($a, $b) { if ($a + $b >= 10) { return true; } else { return false; } } ?>

Rewrite its code in a shortened form according to the studied theory.

Given the following function:

<?php function func($num) { if ($num >= 0) { return true; } else { return false; } } ?>

Rewrite its code in a shortened form according to the studied theory.

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