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<?php
 /**
 * Legacy plural form function.
 *
 * @param int $nplurals
 * @param string $expression
 */
 function tests_make_plural_form_function( $nplurals, $expression ) {
 $closure = static function ( $n ) use ( $nplurals, $expression ) {
 $expression = str_replace( 'n', $n, $expression );
 
 // phpcs:ignore Squiz.PHP.Eval -- This is test code, not production.
 $index = (int) eval( 'return ' . $expression . ';' );
 
 return ( $index < $nplurals ) ? $index : $nplurals - 1;
 };
 
 return $closure;
 }
 
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