Get filtered values from array like values between range 10-20

Question

how to get filtered values from array like values between range 10-20. my array contain 10,15,18,25,88,20. i want to print only between range 10-20.

Answer 1

Any specific requirement? php standard array does not support range search.

I have 2 suggestions: 1) sort the array and then search for the your upper limit, anything before the upperlimit would be your results 2) traverse the array, while traversing, apply your range conditions.

Answer 2

There are number of way to filter array in PHP.

Using array_filter

$your_array = array(10,15,18,25,88,20);
$filtered = array_filter($your_array, create_function('$var', 'return $var >= 10 && $var <= 20;'));
var_export($filtered);

In action

If you want to change range start and range end without modifying create_function code:

$your_array = array(10,15,18,25,88,20);
$range_start = 10;
$range_end = 20;
$filtered = array_filter($your_array, create_function('$var', 'return $var >= '.$range_start.' && $var <= '.$range_end.';'));
var_export($filtered);

In action

$your_array = array(10,15,18,25,88,20);

Using foreach loop:

$filtered = array();
$range_start = 10;
$range_end = 20;
foreach ($your_array as $k=>$v) {
    if ($v >= $range_start && $v <= $range_end) {
        $filtered[$k] = $v;
    }
}
var_export($filtered);

In action

Or so if you don't need to create new array, but modify existing one:

$your_array = array(10,15,18,25,88,20);

$range_start = 10;
$range_end = 20;
foreach ($your_array as $k=>$v) {
        if (!($v >= $range_start && $v <= $range_end)) {
                unset($your_array[$k]);
        }
}
var_export($your_array);

In action

Answer 3

You can use array_filter

function range10_20($var) {
    return ( $var >= 10 && $var <= 20 );
}

$input  = array(10,15,18,25,88,20);
$output = array_filter($input, 'range10_20');

Or something like that:

$input  = array(10,15,18,25,88,20);
$range  = array(
    'from' => 10,
    'to'   => 20
);
$output = array_filter($input, function ($element) use ($range) {
    return ( $var >= $range['from'] && $var <= $range['to'] );
});

Answer 4

use array_intersect with range

$input = array(10,15,18,25,88,20);
$myrange = range(10,20);
$output = array_intersect($input , $myrange );
print_r($output );

DEMO