Answers for "php cast null to int"

cast string to int php

$num = "3.14"; 
$int = (int)$num;//string to int
$float = (float)$num;//string to float

convert to int php

$myintvariable = intval($myvariable);

string to int php

method_1:
  intval($string);//for string to integer
  floatval($string); //for string to float

method_2:
	$int = (int)$string;//string to int
	$float = (float)$string;//string to float