84669 person learning
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Shouldn’t it be
$resuilt=$x-$y=20-10=10 when passed to jian like this?
//I add $one and $two, and then pass $one and $two into the function $func for processing once
//$func is a variable function, see variable function Chapter
echo $one + $two + $func($one,$two);
The little boss doesn’t review the questions carefully
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
//I add $one and $two, and then pass $one and $two into the function $func for processing once
//$func is a variable function, see variable function Chapter
echo $one + $two + $func($one,$two);
The little boss doesn’t review the questions carefully