在数组中查找字符串

Question

My problem is basically, I will be trying to get data from a table called, 'rank' and it will have data formatted like, "1,2,3,4,5" etc to grant permissions. So Basically I am trying to make it an array and find if one number is there in the array. Basically making it an array is not working. How would I get this done? Here is my code below:

<?php
    function rankCheck($rank) {
        $ranks = "1,2,3,4,5";
        print_r($uRanks = array($ranks));
        if(in_array($rank, $uRanks)) {
            return true;
        } else {
            return false;
        }
    }
    if(rankCheck(5) == true) { echo "Hello"; } else { echo "What?"; }
?>

This code returns false, while it should return true. This is just a basic algorithm.

The print_r Display:

Array ( [0] => 1,2,3,4,5 )

Answer 1

Problem solved. I used the explode function instead like this:

<?php
    function rankCheck($rank) {
        $ranks = "1,2,3,4,5";
        print_r($uRanks = explode(',', $ranks));
        if(in_array($rank, $uRanks)) {
            return true;
        } else {
            return false;
        }
    }
    if(rankCheck(5) == true) { echo "Hello"; } else { echo "What?"; }
?>