"=&"是什么意思?和“& =" PHP中的运算符是什么意思? [英] What do the "=&" and "&=" operators in PHP mean?

问题描述

"=&"做什么? /& ="运算符在PHP中是什么意思?在哪里可以阅读有关它们的信息?

What do "=&" / "&=" operators in PHP mean? Where can I read information about them?

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推荐答案

$a &= $b是$a = $a & $b的缩写，它是

$a &= $b is short for $a = $a & $b which is the bitwise-and operator.

$a =& $b将$ a分配为对$ b的引用.

$a =& $b assigns $a as a reference to $b.

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