Php Special Function

//dump all data and display it to browser. <pre> display it more nicer.
<pre>
var_dump($person);
</pre>

//execute the command and die (stop running program)
die(var_dump($person));  //or just die(); 

//remove array item
unset($person['age']);

//uppercase world - first letter uppercase in each world
ucwords('let's go') //will show as "Lets Go"

//custom function
function dump($one, $two, $three) {
  var_dump($one, $two, $three);
}
//call the custom function
 dump('hello', 'big', 'world');