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February 10, 2023 10:34
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WP User Manager - Custom field validation server side with regex
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<?php | |
add_filter( 'submit_wpum_form_validate_fields', function ( $check, $fields, $values, $form_name ) { | |
foreach ( $fields as $group_key => $group_fields ) { | |
$field_key = 'wpum_field_33'; // Change this to be your unique field ID with wpum_ prefix | |
if ( ! isset( $values[ $group_key ][ $field_key ] ) ) { | |
return $check; | |
} | |
$pattern = '/(a)(b)*(c)/'; // Change this to be your regex pattern | |
preg_match( $pattern, $values[ $group_key ][ $field_key ], $matches); | |
if ( empty( $matches ) ) { | |
return new WP_Error( 'validation-error', __( 'This field does not meet the requirement', 'wp-user-manager' ) ); // Change error message | |
} | |
} | |
return $check; | |
}, 10, 4 ); |
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