在PHP中结果集,该如何解决

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Release: 2016-06-13 12:26:44
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在PHP中结果集
array (size=355)
  0 => 
    array (size=1)
      'title' => string '语文' (length=0)
  1 => 
    array (size=1)
      'title' => string '英语' (length=1)
  2 => 
    array (size=1)
      'title' => string '数学' (length=2)
  3 => 
    array (size=1)
      'title' => string '物理' (length=2)
  4 => 
    array (size=1)
      'title' => string '化学' (length=2)
  5 => 
    array (size=1)
      'title' => string '生物' (length=2)

以上是得到的结果集 。  我需要得到的是一串字符串:   语文,英语,数学,物理,化学,生物
------解决思路----------------------
设取得的数组为 $a,则有

$s = join(',', array_map('current', $a));
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$s 中就是你要的结果

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