PHP simple way to implement Process control switch

This article mainly introduces the PHP implementation Process Control switch's simple method, the interest friend's reference, hoped to be helpful to everybody.

switch allows you to select multiple possible results for a scalar (expression).

Grammar:

Switch (expr) {case   result1:   statement1 break   ;   Case RESULT2:   statement2 break   ;   ... Default:   Statement}

The system calculates the value of expr, according to the calculation results (RESULT1, RESULT2, etc.) to select the following corresponding execution statement, if all case results are not met, will execute the statement in default.

Example:

<?php switch ($x) {case   0:   echo "x equals 0";   break;   Case 1:   echo "x equals 1";   break;   Case 2:   echo "x equals 2";   break;   Default:   echo "x is neither equal to 1 and 2 nor equal to 0";}?>

Tips

• Multiple case conditions can be judged

case later results are not limited to numbers, or they can be characters or other types supported by PHP

default not necessary.

Summary: The above is the entire content of this article, I hope to be able to help you learn.