PHP array_multisort() Function
The array_multisort() function returns a sorted array. You can assign one or more arrays. The function sorts the first array, and the other arrays follow, then, if two or more values are the same, it sorts the next array, and so on.
Note: Associative (string) keys will be maintained, but numeric keys will be re-indexed.
| Parameter | Description |
|---|---|
| array1 | Required. Specifies an array |
| sorting order | Optional. Specifies the sorting order. Possible values:SORT_ASC – Default. Sort in ascending order (A-Z)SORT_DESC – Sort in descending order (Z-A) |
| sorting type | Optional. Specifies the type to use, when comparing elements. Possible values:SORT_REGULAR – Default. Compare elements normally (Standard ASCII)SORT_NUMERIC – Compare elements as numeric valuesSORT_STRING – Compare elements as string valuesSORT_LOCALE_STRING – Compare elements as string, based on the current locale (can be changed using setlocale())SORT_NATURAL – Compare elements as strings using “natural ordering” like natsort()SORT_FLAG_CASE – Can be combined (bitwise OR) with SORT_STRING or SORT_NATURAL to sort strings case-insensitively |
| array2 | Optional. Specifies an array |
| array3 | Optional. Specifies an array |
Syntax
array_multisort(array1,sorting order,sorting type,array2,array3...) Example
$array1 = array("Dog","Cat");
$array2 = array("Samuel","Cooper");
array_multisort($array1,$array2);
print_r($array1);
print_r($array2);Output
Array ( [0] => Cat [1] => Dog ) Array ( [0] => Cooper [1] => Samuel ) More Example
$array1 = array("Dog","Cat");
$array2 = array("Cooper","Samuel");
array_multisort($array1,SORT_ASC,$array2,SORT_DESC);
print_r($array1);
print_r($array2);Output
Array ( [0] => Cat [1] => Dog ) Array ( [0] => Samuel [1] => Cooper )
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