W3Schools Tryit Editor

​x
 
<!DOCTYPE html><html><body><pre>​<?php$car = array("brand"=>"Ford", "model"=>"Mustang", "year"=>1964);$car["year"] = 2024;var_dump($car);?>​</pre></body></html>​

array(3) {
  ["brand"]=>
  string(4) "Ford"
  ["model"]=>
  string(7) "Mustang"
  ["year"]=>
  int(2024)
}