It is pretty simple to delete duplicate values from PHP Array. But sometimes we confuse for how can we remove. But PHP provide pre-define function array_unique that can help to remove duplicate values from Array.
array_unique() through we can get only unique value from array. So, you can see bellow example i have 34 value two times but when i use array_unique() then it will return only unique value as bellow output:
Example:
$myArray = [11,34,56,78,34];
$myArrayNew = array_unique($myArray);
print_r($myArrayNew);
Output:
Array
(
[0] => 11
[1] => 34
[2] => 56
[3] => 78
)