[PHP] 출력 비교(echo, print, print_r, var_dump)

출력 비교 $message = "Hello, World"; ----- echo $message; => Hello, World print($message); => Hello, World print_r($message); => Hello, World string(14) var_dump($message); => "Hello, World" $message = array("Hello", "World"); OR $message = array(); $message[0] = "Hello"; $message[1] = "World"; OR $message = [ "Hello", "World" ]; ----- echo $message; => Array print($message); => Array print_r($message); => Array ( [0] => Hello [1] => World ) var_dump($message); => array(2) { [0]=> string(6) "Hello" ...