how can string variable and a integer can be added?

Question

if $str="10"; and $int=20 then how the output becomes 30

Answer 1

Bishal Shrestha

PHP will automatically change the type when you enter a number as a string.

https://www.sololearn.com/learn/PHP/1796/

Answer 2

Use . instead of + for adding strings. $str . $int equals to "1020".