PHP code

Question

How this possible bellow output?

<?php
$str1=10;
$str2=20;
$str3="15"-$str1;
echo $str1+$str2/$str3;
?>

// output 14

Answer 1

This is due to operator precedence, Gauhar Rahman Niazi . First, the echo line checks the division of $str2 and $str3 (20 divided by 5 = 4). Only then it sums this result with $str1 (10+4). Hope it helps, even if so long afterwards.

Answer 2

Thanks Abdul Moqueet

Answer 3

Also the string "15" is implicitly converted to integer when doing calculations.