PHP to find the sum of all even numbers between two

Define Show Class
class defines the method sum
Two numbers passed in the method
Within the method body, all even-numbered and two numbers are calculated
The results will be calculated to return
Results after output return
The output form is as follows
Two numbers between all even-numbered and: 30

Note: The incoming two number is smaller than the first incoming large number of the second incoming two numbers cannot be equal.

The code is as follows:

 
 $two) {for ($i = $two; $i <= $one; $i + +) {if ($i%2==0) {$num + = $i;}} else if ($two > $one) {for ($i = $one; $i <= $two; $i + +) {if ($i%2==0) {$num + = $i;}} Else{return "error, two numbers cannot be equal";//If two numbers equal}return "two number of all even numbers and for". $num;}} Instantiate class $show=new Show ();//Call echo $show->sum (20,30);//Enter two values

The above introduces PHP to find out two of the sum of all the even, including PHP, between the content, I hope to be interested in PHP tutorial friends helpful.

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