PHP array deduplicate data example_PHP tutorial

Repeating data starting with a number such as:

Copy code The code is as follows:

Array (
[0 ] => 100
[k1] => 100
[1] => 2123
[k2] => 2123 )

This method can be used as To remove the values ​​whose numbers are keys, first sort the array in reverse order by key, and then use the array_unique method to remove duplicate values.
It cannot be applied to the following situations: different key values ​​have the same value

Copy code The code is as follows:

function array_unique_value($arr = array()){
array_multisort($arr , SORT_DESC, array_keys($arr));
print_r(array_unique($arr));
}

http://www.bkjia.com/PHPjc/736858.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/736858.htmlTechArticleRepeating data starting with a number such as: Copy code The code is as follows: Array ( [0] = 100 [k1] = 100 [1] = 2123 [k2] = 2123 ) This method can remove the value with a number as the key. First, convert the array according to...