In PHP, the ** operator is used for exponentiation, while the ^ operator is used for bitwise XOR.
Here are their explanations in detail:
- ** Operator (Exponentiation):
The ** operator raises the left operand to the power of the right operand.
It is used for mathematical calculations and returns the result of exponentiation.
For example, 2 ** 3 will give the result 8 (2 raised to the power of 3).
- ^ Operator (Bitwise XOR):
The ^ operator is used for performing bitwise XOR (exclusive OR) operation on each corresponding pair of bits.
It compares the binary representation of two operands, and sets that bit to 1 if only one of the bits is 1.
It is used for manipulating individual bits within binary numbers.
For example, the binary representation of 6 is 110 and the binary representation of 3 is 011. Therefore, 6 ^ 3 results in 101 which is 5 in decimal.
In conclusion, ** is used for exponentiation and ^ is used for bitwise XOR operation in PHP.