PHP has several types of operators, which are used to perform various operations on variables, values, and expressions. Here are some of the most common types of operators in PHP:
- Arithmetic Operators: These operators are used to perform mathematical calculations such as addition, subtraction, multiplication, division, modulus, and exponentiation.
- Assignment Operators: These operators are used to assign values to variables, and perform arithmetic operations at the same time. Examples include =, +=, -=, *=, /=, %=, and **=.
- Comparison Operators: These operators are used to compare values and return a boolean value (true or false). Examples include ==, ===, !=, !==, <, >, <=, and >=.
- Logical Operators: These operators are used to perform logical operations on boolean values. Examples include && (and), || (or), and ! (not).
- String Operators: These operators are used to concatenate (join together) strings. The concatenation operator is the period (.), for example “hello ” . “world”.
- Array Operators: These operators are used to manipulate arrays. The union operator (+) returns the union of two arrays, and the equality operator (==) checks if two arrays are equal.
- Increment/Decrement Operators: These operators are used to increment or decrement the value of a variable. The increment operator is ++ and the decrement operator is –.
- Ternary Operator: This is a conditional operator that takes three operands and evaluates an expression. It is represented by the ? : symbols.
- Null Coalescing Operator: This operator is used to check if a variable exists and is not null. It is represented by the ?? symbol.
These are just some of the most common types of operators in PHP, there are many other types of operators as well.
