Home >Backend Development >PHP Problem >How to delete duplicate elements in php array

How to delete duplicate elements in php array

王林
王林Original
2020-08-03 13:51:332044browse

How to delete duplicate elements in an array in php: You can use the php built-in function array_unique() to delete. This function removes duplicate values ​​from an array and returns the filtered array. If two or more array values ​​are the same, only the first value is retained and the other values ​​are removed.

How to delete duplicate elements in php array

array_unique() function is used to remove duplicate values ​​from the array and return the filtered array. If two or more array values ​​are the same, only the first value is retained and the other values ​​are removed.

(Recommended tutorial: php graphic tutorial)

Grammar:

array_unique(array)

(Recommended video tutorial: php video tutorial )

Code implementation:

<?php
$a=array("a"=>"red","b"=>"green","c"=>"red");
print_r(array_unique($a));
?>

Output result:

Array ( [a] => red [b] => green )

The above is the detailed content of How to delete duplicate elements in php array. For more information, please follow other related articles on the PHP Chinese website!

Statement:
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn