Answers for "php unset sub array"

php unset array element

//Delete array items with unset(no re-index) or array_splice(re-index)
$colors = array("red","blue","green");                             
unset($colors[1]);//remove second element, do not re-index array

$colors = array("red","blue","green");
array_splice($colors, 1, 1); //remove second element, re-index array

php remove element from array

$array = [0 => "a", 1 => "b", 2 => "c",3=>"d"];
//Params are: array,index to delete,number of elements to remove
array_splice($array, 2, 1); 
//print_r($array); 
//Array
//(
//    [0] => a
//    [1] => b
//    [2] => d
//)