empty - Know the Code

The What

bool empty ( mixed $var );

The empty function does two tasks:

It returns TRUE when the variable either does not exist (it is not set) or its value is a falsey state.

Show It in ActionBasic

Let’s see the empty function in action. In this video, you will see how it works, including the sequencing flowchart.

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You get WET when you swim. Stay DRY when you code.

In this video, you will go deeper into the instruction.

Pro Members get access to the Deep series of videos, where you get to deeply learn about the empty instruction.

In this video, you will learn when to use empty.

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