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PHP 中& & 与 || 的差别

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Release： 2016-06-13 13:02:43
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PHP 中& & 与 || 的区别

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注意： & & 与 || ?的区别:

& ?与 ? | ?的特点：先执行两侧表达式，再判断；

&& ?与 ? || ?的特点：先执行左侧，再判断，需要时再执行右侧表达式。

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