3v4l.org

run code in 300+ PHP versions simultaneously
<?php /** * @param array{id: string, name: string} $user * @return array{id: string, name: string} */ function takesUserData(array $user): array { $user['extra_data'] = new stdClass(); return $user; } $foo = ['id' => 'DP42', 'name' => 'Douglas Adams']; echo implode('', takesUserData($foo));
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Uncaught Error: Object of class stdClass could not be converted to string in /in/PoVil:13 Stack trace: #0 /in/PoVil(13): implode('', Array) #1 {main} thrown in /in/PoVil on line 13
Process exited with code 255.

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