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<?php function &z(&$a) { $a[0]=1; return $a; } $a = [ 'a', 'b', 'c' ]; foreach(z($a) as &$x) { $x .= 'q'; } print_r($a);
Output for git.master, git.master_jit, rfc.property-hooks
Array ( [0] => 1q [1] => bq [2] => cq )

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