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PHP传参之传值与传址的区别,php传参
PHP传参之传值与传址的区别,php传参
废话不多说,先来看段代码
function test(&val){ return $val; }
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其中为什么用到&进行传参呢,有什么好处?
传址是允许在函数内部进行改变的意思,比如:
$test = "hello"; function myFun(&$val){ $val = "hello world"; return $val; } echo myFun(&$test); //hello world echo $test; //hello world
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以上所述就是本文的全部内容了,希望大家能够喜欢。
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