Dive into the PHP array_multisort_PHP tutorial

For first time learning

Like this array_multisort($arr1,$arr2,$arr3); The default is that all arrays are sorted in ascending order. If you want to sort $arr2 in descending order , and treated as strings for comparison, it must be written as:

array_multisort($arr1, $arr2, SORT_DESC, SORT_STRING, $arr3);

Each array can be followed by a sort order flag or a sort type flag, or both flags. But only one sort flag of each type can appear after each array.

PHP array_multisort sort order flags:

SORT_ASC - Sort in ascending order (default)

SORT_DESC - Sort in descending order

PHP array_multisort sort type flag:

SORT_REGULAR - compare items according to the usual method (default)

SORT_NUMERIC - compare items numerically

SORT_STRING - Compare items by string

http://www.bkjia.com/PHPjc/446072.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/446072.htmlTechArticleFor first time learning like this array_multisort($arr1,$arr2,$arr3); The default is that all arrays are in ascending order Arrange, if you want to sort $arr2 in descending order and compare it as a string, you must write: ar...