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java软件工程师学php -13. 值传递与引用传递
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- 2016-06-13 13:11:231045browse
java程序员学php -13. 值传递与引用传递
php和Java一样，调用函数时，基本数据类型用值传递，对象用引用传递
但php也可以传递基本数据类型的引用(用&符号):
$w = 65;
function change_it(&$weight){
$weight = 60;
}
change_it($w);
echo $w; //60
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