Php 合并多个数组,然后按数组值计数排序
请帮助我,我需要合并多个数组,然后按数组值计数排序。问题如下:Php 合并多个数组,然后按数组值计数排序,php,arrays,sorting,merge,array-merge,Php,Arrays,Sorting,Merge,Array Merge,请帮助我,我需要合并多个数组,然后按数组值计数排序。问题如下: $array1 = array("abc", "def", "ghi", "jkl", "mno"); $array2 = array("mno", "jkl", "mno", "ghi", "pqr", "stu"); $array3 = array_merge($array1, $array2); $array4 = ??? print_r($array4); 我希望$array4的返回如下: Array ( [0] =&g
$array1 = array("abc", "def", "ghi", "jkl", "mno");
$array2 = array("mno", "jkl", "mno", "ghi", "pqr", "stu");
$array3 = array_merge($array1, $array2);
$array4 = ???
print_r($array4);
我希望$array4
的返回如下:
Array
(
[0] => mno
[1] => ghi
[2] => jkl
[3] => abc
[4] => def
[5] => pqr
[6] => stu
)
你可以做:
$array1 = array("abc", "def", "ghi", "jkl", "mno");
$array2 = array("mno", "jkl", "mno", "ghi", "pqr", "stu");
$array3 = array_merge($array1, $array2);
// get the array of count.
$array4 = array_count_values($array3);
// sort it in reverse order.
arsort($array4);
// extract just the keys.
$array4 = array_keys($array4);
顺便问一下,是否可以合并3个或更多阵列?@Sofyan:是的,您可以使用
array\u merge