php smazat prvek podle hodnoty
$colors = array("blue","green","red");
//delete element in array by value "green"
if (($key = array_search("green", $colors)) !== false) {
unset($colors[$key]);
}
php odebrat pole položek
$items = ['banana', 'apple'];
unset($items[0]);
var_dump($items); // ['apple']
php odebrat prvek z pole
$arr = array('a' => 1, 'b' => 2, 'c' => 3);
unset($arr['b']);
// RESULT: array('a' => 1, 'c' => 3)
$arr = array(1, 2, 3);
array_splice($arr, 1, 1);
// RESULT: array(0 => 1, 1 => 3)
php odebrat z pole
php remove from array