CODEWITHSUNDEEP
phparraysarray-unique
Henrik Petterson
Henrik Petterson

Reputation: 7094

array_unique() not functioning as it should?

I have an array in variable $votes. print_r($votes) gives us:

Array ( [0] => 1 [1] => 1 [2] => 1 )

So we have three values, all of which are set to 1.

Now, I want to make the array only have unique values, meaning that if there are three values that match 1, then remove two of them.

To achieve this, I tried array_unique($votes); but it did not remove any values. Why?!

Upvotes: 1

Views: 103

Answers (1)

Rizier123
Rizier123

Reputation: 59681

You have to assign the output of array_unique to the array again like this:

$votes = array_unique($votes);

As a reference you can look at the manual: http://php.net/manual/en/function.array-unique.php

And a quote from there:

Takes an input array and returns a new array without duplicate values.

Upvotes: 3

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