Search the Community
Showing results for tags '2d arraysubarray'.
Found 1 result
-
Hi all, This seems like it should be really simple but to me it's not. I have an array in a variable called $numbers. When I run print_r ($numbers) I get the following... $earchForNumber = '0304'; // Array called $numbers Array ( [0] => Array ( [0] => 0219, 0220, 0221, 0222, 0223 ) [1] => Array ( [0] => 0301, 0302, 0303, 0304 ) [2] => Array ( [0] => 1230, 1231, 0101, 0102 ) ) if (in_array($earchForNumber, $numbers)) {echo 'The key is' . $key;} What I need to do is search for a number within all of the sub arrays and find the key which it belongs to. So if I wanted to find the key for the value of $earchForNumber (0304) it would return a key of 1. There are tons of posts on stack overflow about this sort of thing but I can't find any that perform this task. I played around with inarray() but couldn't get any joy. Any ideas?