check_key()

public function check_key( $key )

This method checks to see if a passed value is set and is not empty. If both conditions are met, the method returns true. Otherwise, the method returns false.

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Arguments

• $key
  (string) (required) The variable to evaluate.
  

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Example

Take the following code:

$my_array = array(

'title' => 'My Awesome Title',

'content' => '',

);

$check1 = $this->check_key( $my_array['title'] );

$check2 = $this->check_key( $my_array['content'] );

$check3 = $this->check_key( $my_array['image_id'] );

In the example above:

• $check1 would equal true
• $check2 would equal false
• $check3 would equal false