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✏️ Editing: enum.php

<?php

class WPCF7_SWV_EnumRule extends WPCF7_SWV_Rule {

const rule_name = 'enum';

public function matches( $context ) {
		if ( false === parent::matches( $context ) ) {
			return false;
		}

if ( empty( $context['text'] ) ) {
			return false;
		}

return true;
	}

public function validate( $context ) {
		$field = $this->get_property( 'field' );

$input = isset( $_POST[$field] ) ? $_POST[$field] : '';

$input = wpcf7_array_flatten( $input );
		$input = wpcf7_exclude_blank( $input );

$acceptable_values = (array) $this->get_property( 'accept' );
		$acceptable_values = array_map( 'strval', $acceptable_values );
		$acceptable_values = array_filter( $acceptable_values );
		$acceptable_values = array_unique( $acceptable_values );

foreach ( $input as $i ) {
			if ( ! in_array( $i, $acceptable_values, true ) ) {
				return new WP_Error( 'wpcf7_invalid_enum',
					$this->get_property( 'error' )
				);
			}
		}

return true;
	}

public function to_array() {
		return array( 'rule' => self::rule_name ) + (array) $this->properties;
	}
}

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