Contact Form 7 – PHP Warning: Undefined Array Key “Title”…

Overview of the Issue

If you are using Contact Form 7 Multilingual plugin, you may encounter a PHP warning when viewing a page that includes a translated contact form. The warning states:

Warning: Undefined array key "title" in /path-to-website/wp-content/plugins/contact-form-7/includes/contact-form-functions.php on line 239

Workaround

Please, make sure of having a full backup of your site before proceeding.

• Open …/wp-content/plugins/contact-form-7-multilingual/classes/shortcodes.php file.
• Look for this piece of code:

  if ( ! $form && ! empty( $atts['title'] ) ) {
  	$form = wpcf7_get_contact_form_by_title( trim( $atts['title'] ) );
  	unset( $atts['title'] );
  }

• Comment out line 30:

  if ( ! $form && ! empty( $atts['title'] ) ) {
  	$form = wpcf7_get_contact_form_by_title( trim( $atts['title'] ) );
  	//unset( $atts['title'] );
  }

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