Parse a string with two delimiters into an associative array AND how to get the last tag in an HTML string

Question

1. Question

   i have string like this $str="a|apple||b|bat||c|cat||d|dog";

   from the above string i want to create a array dynamically n that newly created array shud look like this Array ( [a] => apple [b] => bat [c] => cat [d] => dog )

2. Question

   i have html string like this

               $html_string="<div>Content Div1</div>
                             <div>Content Div2</div>
                             <div>Content Div3</div>";
   

how can i get 3rd DIV ,resulting answer should be like this

              $ans="<div>Content Div3</div>" ;

Please anyone help me

Answer 1

for the first one

$str = "a|apple||b|bat||c|cat||d|dog";
$new_array = array();

$my_array = explode("||", $str);
$my_array = array_filter($my_array);

foreach ($my_array as $mine) {
  $my = explode("|", $mine);
  $new_array[$my[0]] = $my[1];
}

print_r($new_array);

// Output

Array
(
    [a] => apple
    [b] => bat
    [c] => cat
    [d] => dog
)