在数组数组的位置x处插入一个数组

Question

We have an array of ranges in $r:

$r = array( array(3,5), array(36,54) );

We want to add a new range to our ranges:

$n = array(11, 19);

We also want $r to be sorted, so the new range should be inserted at position 1. If we use array_splice the result would be having 11 and 19 added as two new elements:

array_splice($r, 1, 0, $n);
// output: array( array(3,5), 11, 19, array(36,54) )

How can we get the desired result as shown below?

// output: array( array(3,5), array(11,19), array(36,54) )

Answer 1

You can wrap array with new range in another array:

array_splice($r, 1, 0, array($n));

Output:

array(3) {
  [0]=>
  array(2) {
    [0]=>
    int(3)
    [1]=>
    int(5)
  }
  [1]=>
  array(2) {
    [0]=>
    int(11)
    [1]=>
    int(19)
  }
  [2]=>
  array(2) {
    [0]=>
    int(36)
    [1]=>
    int(54)
}

Example