Could anyone tell me why we use isset() method in php

Answer 1

I think it's to check if a variable is set, for example.

Answer 2

<?php
$var = ""; // variable set
if (isset($var))
echo "it's true because the variable is set";
?>

you can also compare:

if(isset($var) == ""){
echo "empty";
} else {
echo "not empty";
}

As I sad, the isset() method is to check if a variable IS SET.

Answer 3

got it😇

Answer 4

like????

Answer 5

To check if variable is set.