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run code in 300+ PHP versions simultaneously
<?php $foo = 'Bob'; // gán giá trị 'Bob' cho $foo $bar = &$foo; // Tham chiếu $foo qua $bar. $bar = "My name is $bar"; // thay đổi $bar... echo $bar; echo $foo; // $foo cũng bị thay đổi.
Output for git.master, git.master_jit, rfc.property-hooks
My name is BobMy name is Bob

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