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php函数参数摘引调用

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WBOYOriginal
2016-06-13 13:07:451037browse

php函数参数引用调用
作者:zccst

一、参数的两种调用方式
1,传值调用

2,传址调用
function getFun(&$a){
    $a++;
}

$a = 1;
getFun($a);
echo $a; //$a的值是2.

批注:getFun不用返回值,因为函数直接修改了$a的数值。

二、数组和对象循环区别

 php函数参数摘引调用

 php函数参数摘引调用

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