<?php public static function providerMethod() { return [ ['a' => 1, 'b' => 2, 'c' => 3], // OK ['c' => 3, 'a' => 2, 'b' => 1], // OK ['c' => 1, 'hoge' => 2, 'b' => 3], // NG ]; } #[DataProvider('providerMethod')] public function testAdd($a, $b, $c): void { $this->assertEquals($c, $a + $b); } ❌