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, PHP 7 Quick Scripting Reference, 10.1007/978-1-4842-1922-5_3

# 3. Operators

(1)Hammarland, Finland

An operator is a symbol that makes the script perform a specific mathematical or logical manipulation. The operators in PHP can be grouped into five types: arithmetic, assignment, comparison, logical, and bitwise operators.

## Arithmetic Operators

The arithmetic operators include the four basic arithmetic operations, as well as the modulus operator (%), which is used to obtain the division remainder.

``\$x = 4 + 2; // 6 // addition``\$x = 4 - 2; // 2 // subtraction``\$x = 4 * 2; // 8 // multiplication``\$x = 4 / 2; // 2 // division``\$x = 4 % 2; // 0 // modulus (division remainder)``

An exponentiation operator (**) was introduced ...

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