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<?php function creator($var) { return new class($var) { private static $var; function __construct($var) { static::$var = $var; } function __debugInfo() { return [ "\0*\0var" => static::$var, ]; } }; } $a = creator('A'); $b = creator('B'); var_dump($a, $b, $a === $b);
Output for git.master, git.master_jit, rfc.property-hooks
object(class@anonymous)#1 (1) { ["var":protected]=> string(1) "B" } object(class@anonymous)#2 (1) { ["var":protected]=> string(1) "B" } bool(false)

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