function is_protected_meta( $meta_key, $meta_type = null ) {}

Determine whether a meta key is protected


  • string $meta_key: Meta key
  • $meta_type

Return values

returns:True if the key is protected, false otherwise.

Defined filters

  • is_protected_meta
    apply_filters( 'is_protected_meta', $protected, $meta_key, $meta_type )

Source code

function is_protected_meta( $meta_key, $meta_type = null ) {

	$protected = ( '_' == $meta_key[0] );

	return apply_filters( 'is_protected_meta', $protected, $meta_key, $meta_type );



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