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Change the captcha math for the Custom Catpcha Addon

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This article contains PHP code and is intended for developers. We offer this code as a courtesy, but don't provide support for code customizations or 3rd party development.

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The Custom Captcha addon can be setup to display a math captcha for users to solve. The settings of this type of captcha can be adjusted using a filter.

The example snippet below changes the max number used to 4 which will simplify the equations. The cal could also be modified to only include addition.

/**
 * Adjust math captcha settings.
 *
 * @params array $settings
 * @return array
 */
function wpf_dev_math_captcha_settings( $settings ) {
	
	/* Default settings
		array(
			'min' => 1,
			'max' => 15,
			'cal' => array( '+', '*' ),
		);
	 */

	// Change max number 4 for easier math
	$settings['max'] = 4;

	return $settings;
}
add_filter( 'wpforms_math_captcha', 'wpf_dev_math_captcha_settings' );
Updated on November 20, 2017

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