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<?php $a = []; for ($x = 0; $x < 2; ++$x) { if (!$x) { $a["color"]["price"] = "25"; } else { $a["color"]["price"] .= "5"; } } var_export($a);
Output for git.master, git.master_jit, rfc.property-hooks
array ( 'color' => array ( 'price' => '255', ), )

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