Filtering array result

Question

My array :

<?php

$hoppa = array
(
    "0" => array
        ("0","0","0","0","0","0","0","0","0","0"),
    "1" => array
        ("0","0","0","0","0","0","0","0","0","0"),      
    "2" => array
        ("1","0","0","1","0","0","0","0","0","0"),
    "3" => array
        ("1","0","0","1","0","1","1","1","1","0"),
    "4" => array
        ("1","1","1","1","0","0","0","0","1","0"),
    "5" => array
        ("1","0","0","1","0","1","1","1","1","0"),
    "6" => array
        ("1","0","0","1","0","1","0","0","1","0"),
    "7" => array
        ("1","0","0","1","0","1","1","1","1","0"),
    "8" => array
        ("0","0","0","0","0","0","0","0","0","0"),
    "9" => array
        ("0","0","0","0","0","0","0","0","0","0")                                   

);

?>

My array's output:

Array
(
    [0] => Array
        (
            [0] => 0
            [1] => 0
            [2] => 0
            [3] => 0
            [4] => 0
            [5] => 0
            [6] => 0
            [7] => 0
            [8] => 0
            [9] => 0
        )

    [1] => Array
        (
            [0] => 0
            [1] => 0
            [2] => 0
            [3] => 0
            [4] => 0
            [5] => 0
            [6] => 0
            [7] => 0
            [8] => 0
            [9] => 0
        )

    [2] => Array
        (
            [0] => 1
            [1] => 0
            [2] => 0
            [3] => 1
            [4] => 0
            [5] => 0
            [6] => 0
            [7] => 0
            [8] => 0
            [9] => 0
        )

    [3] => Array
        (
            [0] => 1
            [1] => 0
            [2] => 0
            [3] => 1
            [4] => 0
            [5] => 1
            [6] => 1
            [7] => 1
            [8] => 1
            [9] => 0
        )

    [4] => Array
        (
            [0] => 1
            [1] => 1
            [2] => 1
            [3] => 1
            [4] => 0
            [5] => 0
            [6] => 0
            [7] => 0
            [8] => 1
            [9] => 0
        )

    [5] => Array
        (
            [0] => 1
            [1] => 0
            [2] => 0
            [3] => 1
            [4] => 0
            [5] => 1
            [6] => 1
            [7] => 1
            [8] => 1
            [9] => 0
        )

    [6] => Array
        (
            [0] => 1
            [1] => 0
            [2] => 0
            [3] => 1
            [4] => 0
            [5] => 1
            [6] => 0
            [7] => 0
            [8] => 1
            [9] => 0
        )

    [7] => Array
        (
            [0] => 1
            [1] => 0
            [2] => 0
            [3] => 1
            [4] => 0
            [5] => 1
            [6] => 1
            [7] => 1
            [8] => 1
            [9] => 0
        )

    [8] => Array
        (
            [0] => 0
            [1] => 0
            [2] => 0
            [3] => 0
            [4] => 0
            [5] => 0
            [6] => 0
            [7] => 0
            [8] => 0
            [9] => 0
        )

    [9] => Array
        (
            [0] => 0
            [1] => 0
            [2] => 0
            [3] => 0
            [4] => 0
            [5] => 0
            [6] => 0
            [7] => 0
            [8] => 0
            [9] => 0
        )

)

it will give 0 (zero) as result

echo $hoppa[1][1];

it will give 1 (one) as result

echo $hoppa[2][0];

I dont want 0 (zero) values to show in the results. I want php script to return only 1 as results. Which functions should use? or can you give me a sample?

Answer 1

Use:

foreach($hoppa as $k => $v) {
    $hoppa[$k] = array_filter($v);
}

This results in:

php > print_r($hoppa);
Array
(
    [0] => Array
        (
        )

    [1] => Array
        (
        )

    [2] => Array
        (
            [0] => 1
            [3] => 1
        )

    [3] => Array
        (
            [0] => 1
            [3] => 1
            [5] => 1
            [6] => 1
            [7] => 1
            [8] => 1
        )

    [4] => Array
        (
            [0] => 1
            [1] => 1
            [2] => 1
            [3] => 1
            [8] => 1
        )

    [5] => Array
        (
            [0] => 1
            [3] => 1
            [5] => 1
            [6] => 1
            [7] => 1
            [8] => 1
        )

    [6] => Array
        (
            [0] => 1
            [3] => 1
            [5] => 1
            [8] => 1
        )

    [7] => Array
        (
            [0] => 1
            [3] => 1
            [5] => 1
            [6] => 1
            [7] => 1
            [8] => 1
        )

    [8] => Array
        (
        )

    [9] => Array
        (
        )

)