How to foreach this?

PHP
1

I have this array:

Array
(
    [2] => Array
        (
            [sex] => 1
        )

    [295] => Array
        (
            [sex] => 1
        )

    [901] => Array
        (
            [sex] => 1
        )

    [1550] => Array
        (
            [sex] => 1
        )

    [1570] => Array
        (
            [sex] => 1
        )

    [1715] => Array
        (
            [sex] => 1
        )

    [1764] => Array
        (
            [sex] => 1
        )

    [1784] => Array
        (
            [sex] => 1
        )

    [1835] => Array
        (
            [sex] => 1
        )

    [1849] => Array
        (
            [sex] => 1
        )

    [1855] => Array
        (
            [sex] => 1
        )

    [1873] => Array
        (
            [sex] => 2
        )

    [1885] => Array
        (
            [sex] => 1
        )

    [1888] => Array
        (
            [sex] => 2
        )

    [1908] => Array
        (
            [sex] => 1
        )

    [1910] => Array
        (
            [sex] => 2
        )

    [1915] => Array
        (
            [sex] => 1
        )

    [1916] => Array
        (
            [sex] => 1
        )

)

I would like to output in other array IDs that have sex value 1???

2

array_filter(), array_keys()

3

Thanks buddy but how do I use this?

4

click on the links and scroll down to the examples’ section.

5

Please give me quick example please?

6 
function odd($var)
{
    // returns whether the input integer is odd
    return($var & 1);
}

$array1 = array("a"=>1, "b"=>2, "c"=>3, "d"=>4, "e"=>5);

echo "Odd :\n";
print_r(array_filter($array1, "odd"));
7

Thanks but I don’t see how I can apply it to my array? Please could you use my array in your example?

8

how about you give it a try yourself?

9

Buddy I am a newbie in PHP. I don’t get it please?

10

How do I remove array that has sex value 2 from this array

11

“newbie” doesn’t mean you shouldn’t attempt it yourself first.

1 Like
12

I am testing but I doesn’t seems to work!

13

from the Manual of array_filter():

Iterates over each value in the array passing them to the callback function. If the callback function returns true, the current value from array is returned into the result array.

14

I am more visual learner please give me a hand please?

15

if you have code to test, you can post it here, so we can see where the problem is.

16 
function odd($var)
{
    // returns whether the input integer is odd
    return($var & 1);
}

echo "Odd :\n";
print_r(array_filter($test, "odd"));


Odd :
Array
(
    [2] => Array
        (
            [sex] => 1
        )

    [295] => Array
        (
            [sex] => 1
        )

    [901] => Array
        (
            [sex] => 1
        )

    [1550] => Array
        (
            [sex] => 1
        )

    [1570] => Array
        (
            [sex] => 1
        )

    [1715] => Array
        (
            [sex] => 1
        )

    [1764] => Array
        (
            [sex] => 1
        )

    [1784] => Array
        (
            [sex] => 1
        )

    [1835] => Array
        (
            [sex] => 1
        )

    [1849] => Array
        (
            [sex] => 1
        )

    [1855] => Array
        (
            [sex] => 1
        )

    [1873] => Array
        (
            [sex] => 2
        )

    [1885] => Array
        (
            [sex] => 1
        )

    [1888] => Array
        (
            [sex] => 2
        )

    [1908] => Array
        (
            [sex] => 1
        )

    [1910] => Array
        (
            [sex] => 2
        )

    [1915] => Array
        (
            [sex] => 1
        )

    [1916] => Array
        (
            [sex] => 1
        )

)

Doesn’t remove array that have sex value 1

17

What is $var ???

18

why do you test for the odd-ness of each sub-array, when you want to test the value for the sex key?

19

$var is each array element that is tested.

20

I get no idea what I am doing?