PHP elseif 不起作用。(比较运算符与整数)

Question

function ageIssue($age){
    if ($age > 10) {
        echo "Age is greater than 10";
    } elseif ($age>20) {
        echo "Age is greater than 20";
    } elseif($age>30) {
        echo "Age is greater than 30";
    }else {
        echo "Enter valid age";
    }
 }

 ageIssue(32);

这段代码有什么问题？我需要答案“年龄大于 30 岁”，但它总是说“年龄大于 10 岁”。请帮忙....

Answer 1

你的代码逻辑有问题。如果你想用if else来处理，你必须这样做:

function ageIssue($age){
    if ($age > 30 && $age < 40) {
        echo "Age is greater than 30";
    } elseif ($age>20) {
        echo "Age is greater than 20";
    } elseif($age>10) {
        echo "Age is greater than 10";
    }else {
        echo "Enter valid age";
    }
}