php在一个文件中写入一个数组

$data = "<?php\r\nreturn " . var_export($config, true) . ";\r\n?>";
file_put_contents("system.php", $data);

$data = "<?php\r\nreturn " . var_export($config, true) . ";\r\n?>"; file_put_contents("system.php", $data);

<?php
return array (
  'zs_num' => 0,
  'qdzs' => 99999,
  'qdjiangli' => 0.10000000000000001,
  'MEMBER_LOGIN' => 'on',
  'MEMBER_REG' => '',
  'mySelf' => 
  array (
    0 => 18867513490,
    1 => 18916953132,
    2 => 18918174254,
  ),
  'buy_reward_1' => 0,
  'buy_reward_2' => 0
);
?>

<?php return array ( 'zs_num' => 0, 'qdzs' => 99999, 'qdjiangli' => 0.10000000000000001, 'MEMBER_LOGIN' => 'on', 'MEMBER_REG' => '', 'mySelf' => array ( 0 => 18867513490, 1 => 18916953132, 2 => 18918174254, ), 'buy_reward_1' => 0, 'buy_reward_2' => 0 ); ?>