调查陷入循环

Question

I've got the rest of the code working, but it seems like my if statement for age, keeps getting stuck and reruns the statement. 我已经完成了其余代码的工作，但似乎我的if语句存在年龄问题，一直卡住并重新运行该语句。 I can see in the var_dump that it got the correct value, but it keeps going back to the statement where it says to enter a numeric value. 我可以在var_dump中看到它具有正确的值，但是它会一直返回到说输入数字值的语句。

<?php

session_start();

var_dump($_SESSION);

$isValid = true;

$fullName = "";
$age = "";
$gender = "";



if (isset($_POST) && !empty($_POST))
{
    if (isset($_POST['fullName']) && !empty($_POST['fullName']))    
    { 
        $_SESSION['fullName'] = $_POST['fullName']; 
    }
    else
    {   
        $isValid = false;
        echo "Please fill in your Full Name.";
    } 

    if (isset ($_POST['age']) && !empty($_POST['age'])) 
    { 
        $_SESSION['age'] = $_POST['age']; 

        if (empty($_POST['age']))
        {   
            $isValid = false;
            echo "Please fill in your Age."; 
        }

        else if(!is_numeric($age))
        {
            $isValid = false;
            echo "Must be a numeric value.";
        }
    }
    else
    {
        $isValid = true;
    }

    if (isset($_POST['yourGender']) && !empty($_POST['yourGender']))    
    { 
        $_SESSION['yourGender'] = $_POST['yourGender']; 
    }
    else
    {   
        $isValid = false;
        echo"Please pick your gender"; 
    }

    if ($isValid)
    {
        header('Location: qp2.php');
    }
}

?>

<html>
    <head>
        <title> Questions Page 1</title>
    </head>

<body>

    <form method="post" action="qp1.php"> 

        <!--Name --> 
        Full Name: <input type="text" name="fullName" value="<?php echo $fullName; ?>"/><br/>

        <!-- Email --> 
        Age: <input type="text" name="age" value="<?php echo $age; ?>"/><br/>   
        <br/>

        <!-- How? Dropdown -->
        How did you hear about us?
        <select name="yourGender" value="<?php echo $gender; ?>">
            <option value=""></option>
            <option value="male">Male</option>
            <option value="female">Female</option>
        </select>

        <br/>

        <!-- Submit button --> 
        <input type="button" value="Back" onclick="location.href='index.php'"/>
        <input type="submit" value="Next"/>


    </form>

</body>
</html>

Can anyone tell me what is wrong with my statements? 谁能告诉我我的陈述出了什么问题？

Answer 1

You branch on if(!is_numeric($age)) without having assigned $age . 您在if(!is_numeric($age))上分支但未分配$age 。

Either assign $age=$_SESSION['age']; 要么分配$age=$_SESSION['age']; or check if(!is_numeric($_SESSION['age'])) 或检查if(!is_numeric($_SESSION['age']))

调查陷入循环

问题描述

1 个解决方案

解决方案1
0 2015-10-27 23:13:49

调查陷入循环

问题描述

1 个解决方案

解决方案1 0 2015-10-27 23:13:49

解决方案1
0 2015-10-27 23:13:49