integer to string php

phpCopy<?php  
$variable = 10;
$string1 = (string)$variable;
echo "The variable is converted to a string and its value is $string1.";  
?>

phpCopy<?php  
$variable = 10;
$string1 = strval($variable);
echo "The variable is converted to a string and its value is $string1.";  
?>

phpCopy$string = (string)$intVariable