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java软件工程师学php - 8. 神奇的extract()

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Release: 2016-06-13 13:11:53
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java程序员学php - 8. 神奇的extract()
声明这样一个关联数组:
  $map['BJ'] = 'Beijing';
  $map['SH'] = 'Shanghai';

然后做一下extract($map), 你就可以自动获得 $BJ 和 $SH这两个变量,它们的值分别为Beijing和Shanghi。

也就是说,extract替你编程了。这在Java语言里还是很难想象的。

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