Title: Warning: array_key_exists() expects parameter 2 to be array, boolean given
Last modified: July 14, 2019

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# Warning: array_key_exists() expects parameter 2 to be array, boolean given

 *  Resolved [KTS915](https://wordpress.org/support/users/kts915/)
 * (@kts915)
 * [6 years, 10 months ago](https://wordpress.org/support/topic/warning-array_key_exists-expects-parameter-2-to-be-array-boolean-given/)
 * On PHP 7.3, I get the above warning in `dublin-core-metadata-generator/dcmg_metadata.
   php` on both line 167 and line 400.
 * The solution on line 167 seems to be to change this:
    ` array_key_exists( ‘dublincore_metadata_generator_image_format’,
   $options ) ? ` to this: ` is_array( $options ) && array_key_exists( ‘dublincore_metadata_generator_image_format’,
   $options ) ? ` and, on line 400, change this: ` array_key_exists( ‘dublincore_metadata_generator_cleanyoast’,
   $options ) ? ` to this: ` is_array( $options ) && array_key_exists( ‘dublincore_metadata_generator_cleanyoast’,
   $options ) ? `

Viewing 1 replies (of 1 total)

 *  Plugin Author [Darken-x](https://wordpress.org/support/users/darken-x/)
 * (@darken-x)
 * [6 years, 9 months ago](https://wordpress.org/support/topic/warning-array_key_exists-expects-parameter-2-to-be-array-boolean-given/#post-11854059)
 * Thanks a lot for finding and fixing this warning!
 * I’ve updated the plugin to reflect this.
 * Cheers!

Viewing 1 replies (of 1 total)

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 * 1 reply
 * 2 participants
 * Last reply from: [Darken-x](https://wordpress.org/support/users/darken-x/)
 * Last activity: [6 years, 9 months ago](https://wordpress.org/support/topic/warning-array_key_exists-expects-parameter-2-to-be-array-boolean-given/#post-11854059)
 * Status: resolved