Math in PHP

Addition ($a + $b): 100 + 50 = 150

Subtraction ($a - $b): 100 - 50 = 50

Multiplication ($a * $b): 100 * 50 = 5000

Division ($a / $b): 100 / 50 = 2

Modulus ($a % $b): 100 % 50 = 0

Exponent ($a ** $b): 100 ** 50 = 1.0E+100

Pre-Increment (++$a): 101

Post-Increment ($a++): 50

Pre-Decrement (--$b): 100

Post-Decrement ($b--): 51

Expalnation


Addition (+): Adds two numbers together.
Subtraction (-): Subtracts the second number from the first.
Multiplication (*): Multiplies two numbers.
Division (/): Divides the first number by the second.
Modulus (%): Returns the remainder of the division of the first number by the second.
Exponentiation (**): Raises the first number to the power of the second number.
Pre-Increment (++$var): Increases the value of a variable by one.
Post-Increment ($var++): Returns the value of the variable, then increases the value by one.
Pre-Decrement (--$var): Decreases the value of a variable by one.
Post-Decrement ($var--): Returns the value of the variable, then decreases the value by one.