How to realize the addition of two numbers in php
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Php to achieve the addition of two numbers: 1, the use of the "+" addition operator, syntax "$num1 + $num2"; 2, the use of the "+ =" operator, you can add the value of the expression on the right side of the operator to the left variable, syntax "$num1 + = $num2".
Operating environment of this tutorial: windows7 system, PHP7.1 version, DELL G3 computer
Php realizes the addition of two numbers
1. Use the "+" addition operator
The "+" operator is used for addition calculations.
Example:
2. Use the "+ =" operator
The addition of "+ =" equals the assignment operator, and you can assign the variable on the left of the operator plus the value of the expression on the right to the variable on the left.
Example:
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