PHP,与普通按键合并阵列 [英] PHP, Merging arrays with common keys
本文介绍了PHP,与普通按键合并阵列的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我需要得到两个数组合并成一个,同时保持所有的键代替和在本实施例中的阵列列出的值如下:
$ ARRAY1 =阵列('车'=>'3','公交车'=>'2');
$数组2 =阵列('狗'=>'1','汽车'=>'2','鸟'=>'9');$合并=阵列(
'车'=>阵列('3','2'),
总线=>阵列('2',空)
'狗'=>阵列(空,'1'),
鸟= GT; (NULL,'9')
);
解决方案
函数merge_common_keys(){
$ ARR = func_get_args();
$ NUM = func_num_args(); $键=阵列();
$ I = 0;
为($ I = 0; $ I< $ NUM ++ $ I){
$键= array_merge($键,array_keys($改编[$ i]));
}
$键= array_unique($键); $合并=阵列(); 的foreach($键为$键){
$合并[$关键] =阵列();
为($ I = 0; $ I< $ NUM ++ $ I){
$合并[$关键] [] =使用isset($改编[$ i] [$关键])? $常用3 [$ i] [$关键]:空;
}
}
返回$合并;
}
用法:
$ =合并merge_common_keys($数组1,$数组2);
PS。它可以与两个以上的阵列工作,只是通过只要你想下一个参数为多。
I need to get two arrays to merge into one while keeping all the keys in place and listing the values in an array like in this example:
$array1 = array('car' => '3', 'bus' => '2');
$array2 = array('dog' => '1', 'car' => '2', 'bird' => '9');
$merged = array(
'car' => array('3','2'),
'bus' => array('2',null),
'dog' => array(null,'1'),
'bird' => (null,'9')
);
解决方案
function merge_common_keys(){
$arr = func_get_args();
$num = func_num_args();
$keys = array();
$i = 0;
for ($i=0; $i<$num; ++$i){
$keys = array_merge($keys, array_keys($arr[$i]));
}
$keys = array_unique($keys);
$merged = array();
foreach ($keys as $key){
$merged[$key] = array();
for($i=0; $i<$num; ++$i){
$merged[$key][] = isset($arr[$i][$key]) ? $arr[$i][$key] : null;
}
}
return $merged;
}
Usage:
$merged = merge_common_keys($array1,$array2);
PS. It can work with more than two arrays, just pass as many as you want as next arguments.
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