How to get sub array in PHP?

Question

I want to get an array composed of the first 4 rows of the original array $arr,

how to do it in PHP?

Answer 1

You need to use array_slice().

$output = array_slice($arr, 0, 4);

Answer 2

array_slice()

$subArray = array_slice($arr,0,4);

Answer 3

Check this out.. this should help

<?php
$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));
?>

From http://docs.php.net/array_slice.