What is the use of var_dump in PHP ?

var_dump() function is used to display structured information(type and value) about one or more variable
syntax:- var_dump(variable1,variable2,variablen);

var_dump
<?php

$a=5;
$b=5.1;
$c=true;
var_dump($a,$b,$c);

?>

OUTPUT :
int(5) float(5.1) bool(true)