Question

I have an array like this:

[5229561]=> 8
[5229582]=> 9
[5229583]=> 10
[5229584]=> 11

etc

How can I get the minimum value greater than/equal to 10?

So, it this example, it would give me 5229583. I know about the min() function, but I'm not sure how to get a value greater than 10.

Answer 1

You need to evaluate the array for this, a number of methods you can use:

for simplicity (and not trying to be fancy) i’ll show you the easiest way to learn to do this in PHP.

$input_array = array('5229561' => 8,
                     '5229582' => 9,
                     '5229583' => 10,
                     '5229584' => 11);

foreach ($input_array as $key => $value) {
    if($value >= 10) {
        $output[$key] = $value;
    }
}

$output will be:

array (
      '5229583' => 10,
      '5229584' => 11
      )

hope that helps

EDIT Addition: (Due to RiaD post below) another simple method to do this.

function greaterTen($var) {
    return ($var >= 10);
}

$output = array_filter($input_array,"greaterTen");

and even (as of php5.3):

$output = array_filter($input_array,function ($var) {
    return ($var >= 10);
});