Remove the first element from a multidimensional array with PHP

Question

Form this array, how can I remove the first element of Provinces ?

Array
(
    [Country] => Canada
    [Provinces] => Array
        (
            [0] => Quebec
            [1] => Ontario
            [2] => British Columbia
        )
)

Thanks.

Answer 1

You can do that with unset() :

unset( $myArray['Cities'][0] )

https://www.php.net/manual/en/function.unset.php

Answer 2

If you want to remove the first items in the array for the key name Provinces and the numerical keys do not have to be preserved, you could also use array_splice :

$arr = [
    "Country" => "Canada",
    "Provinces" => [
        "Quebec",
        "Ontario",
        "British Columbia"
    ]
];
array_splice($arr["Provinces"], 0, 1);

Php demo

Or using unset to keep the numerical keys:

unset($arr['Provinces'][0]);

Answer 3

You can do both way but difference is that when you use unset will remove an element by its key, say unset( $myArray['country']) will remove the country key value pair.

if you want to remove first element in multidimensional array then you can easily dt with array_shift(); it will remove all the child array of this particular element.

suppose it is a location array

   $location = Array
       (
        [Country] => Canada
        [Provinces] => Array
         (
            [0] => Quebec
            [1] => Ontario
            [2] => British Columbia
        )
)

// Removing first array item
$location_new = array_shift($planets);
print_r($location_new);//it will give **Canada**
//and now
print_r($location);//it will give the 

 Array
       (
        [Provinces] => Array
         (
            [0] => Quebec
            [1] => Ontario
            [2] => British Columbia
        )
)