PHP » Operators » <<
- Syntax:
- expression1 << expression2
- expression1
- Number to shift.
- expression2
- Number of steps to shift it.
Shift left.
This operator shifts a binary number a number of steps to the left.
Examples
Code:
<?php
$a = 11;
$b = $a << 1;
printf("%b << 1 = %b", $a, $b);
?> Output:
1011 << 1 = 10110 Explanation:
A number is shifted one step to the left.
