PHP Operators

• An operator is a special symbol that performs specific operations on one, two, or three operands and then returns a result.

• Operators can be grouped according to the number of values they take.

• Unary operators take only one value, for example, ++ (the increment operator).

• Binary operators take two values, for example, arithmetic operators familiars like + (plus) and - (minus), and the majority of PHP operators.

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