how to remove key from array in php code example

Example 1: php delete element by value

$colors = array("blue","green","red");

//delete element in array by value "green"
if (($key = array_search("green", $colors)) !== false) {
    unset($colors[$key]);
}

Example 2: php unset array key

unset($dataArray['key']);

Example 3: how to remove keys in subarray php

print_r(deep_delete_keys($arr,'country'));

function deep_delete_keys($arr, $keys) {
    if (!is_array($keys)) $keys = array($keys);
    $filteredArr = array_diff_key( $arr, array_flip( $keys ) );
    foreach ($filteredArr as &$val) {
        if (is_array($val)) {
            $val = deep_delete_keys($val, $keys);
        }
    }
    return $filteredArr;
}

Example 4: remove key of an array php

$result_Member = $this->Member->get_list_member_belong_to_company($id);

/* 
$result_Member = array(
	[10] => 10,
    [20] => 11,
    [30] => 12,
)
*/

// remove key, get values only
$member_ids = array_values($result_Member);

/*
$result_Member = array(
	[0] => 10,
    [1] => 11,
    [2] => 12,
)
*/