In addition, ...
| (or)
PHP Code:
var_a = 7; // or in binary, 000....0111
var_b = 14; // or in binary, 000....1110
// in the bit in each position becomes 1 if either bits from either variable are 1.
var_c = var_a | var_b; // which yields 000....1111, or 15.
& (and)
PHP Code:
var_a = 7; // or in binary, 000....0111
var_b = 14; // or in binary, 000....1110
// in the bit in each position becomes 1 if both bits from either variable are 1.
var_c = var_a & var_b; // which yields 000....0110, or 6.