如何允许php数组中的重复键 [英] How to allow duplicate keys in php array
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问题描述
如何让php数组有重复的键?当我尝试插入一个键值对时,它会用新值覆盖对应的先前键的值.有没有办法可以同时维护两个具有不同值的重复键?
How to allow php array to have duplicate keys? When I try to insert a key, value pair with already existing key it overwrites the value of corresponding previous key with the new value. Is there a way that I could maintain both duplicate keys having different values?
推荐答案
您可以拥有一个具有数组值(也称为多维数组)的键,该数组将包含具有该给定键的所有元素.一个例子可能是
You could have a single key that has a value of an array(aka a multi-dimensional array), which would contain all the elements with that given key. An example might be
$countries = array(
"United States" => array("California", "Texas"),
"Canada" => array("Ontario", "Quebec")
);
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