function delete_item() from array php

Question

Why this function does not work? After calling it, the same array is printed.

$myArray1 = ["Barcelona",  "Romania", "Cile", "France"];

function del(&$array, $item_to_del){
    foreach ($array as $item) {
        if ($item == $item_to_del){
            unset($item);

        }
    }
}

del($myArray1, "Barcelona");
var_dump($myArray1);

Because you're not actually deleting the item in the array. You're unsetting $item. — P. Gearman
– P. Gearman, Commented May 11, 2016 at 13:25

Jayesh Chitroda · Accepted Answer · 2016-05-11 13:27:58Z

1

Just replace your del function with this. try this:

function del(&$array, $item_to_del){
    if (($key = array_search($item_to_del, $array)) !== false) {
        unset($array[$key]);
    }
}

answered May 11, 2016 at 13:27

Jayesh Chitroda

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1 Comment

Md Mahfuzur Rahman Over a year ago

What will happen if the item repeats multiple time into the array ?

Md Mahfuzur Rahman · Accepted Answer · 2016-05-11 13:26:51Z

0

You must delete the index also.

Try this:

<?php

$myArray1 = ["Barcelona",  "Romania", "Cile", "France"];

function del(&$array, $item_to_del){
    foreach ($array as $key => $item) {
        if ($item == $item_to_del){
            unset($array[$key]);

        }
    }
}

del($myArray1, "Barcelona");
var_dump($myArray1);

answered May 11, 2016 at 13:26

Md Mahfuzur Rahman

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1 Comment

Egle Nausedaite Over a year ago

Md Mahfuzur Rahman, thank you, that works, cool. But it is weird since it is not a map.

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