HI there,
Is there any PHP native function which returns the range of records from the array based on the start and end of the index?
i.e.:
array(0 => 'a', 1 => 'b', 2 => 'c', 3 => 'd');
and now I would like to only return records between index 1 and 3 (b, c, d).
Any idea?
Couldn't you do that with e.g. array_slice?
$a = array(0 => 'a', 1 => 'b', 2 => 'c', 3 => 'd');
array_slice($a, 1, 3);
there is a task for array_slice
array array_slice ( array $array , int $offset [, int $length [, bool $preserve_keys = false ]] )
example:
$input = array("a", "b", "c", "d", "e");
$output = array_slice($input, 2); // returns "c", "d", and "e"
$output = array_slice($input, -2, 1); // returns "d"
$output = array_slice($input, 0, 3); // returns "a", "b", and "c"
// note the differences in the array keys
print_r(array_slice($input, 2, -1));
print_r(array_slice($input, 2, -1, true));
By using array_intersect_key
$myArray = array(0 => 'a', 1 => 'b', 2 => 'c', 3 => 'd');
$arrayRange = array('1', '2', '3');
// this can also be used if you have integer only array values
// $arrayRange = range(1,3);
$newArray = array_intersect_key($myArray, array_flip($arrayRange));
print_r($newArray); // output: Array ( [1] => b [2] => c [3] => d )
$array1 = array(1,2,3,4,5,6,23,24,26,21,12);
foreach(range ($array1[0],$array1[5]) as $age){
echo "Age: {$age}<br />";
}
you should get the following output:
Age: 1
Age: 2
Age: 3
Age: 4
Age: 5
Age: 6
range() fabricates values where there are no values in the array. Here is the flaw using your own input: Demo2 Please delete this answer. array_slice() and array_intersect_key() are the most sensible methods.