无法找到 if/else 函数的确切值

Question

我有这段代码并试图将$bonval 放入mysql 插入函数，但它返回null。我在这里做错了什么？

<?php
if (!isset($_SESSION['views'])) { 
    $_SESSION['views'] = 0;
}
$_SESSION['views'] = $_SESSION['views']+1;

$first =  mt_rand(10,20);
$second =  mt_rand(40,50);
$third =  mt_rand(60,70);
if ($_SESSION['views'] == 2 or ($_SESSION['views'] == 5) or ($_SESSION['views'] == 10) or ($_SESSION['views'] == 20) or ($_SESSION['views'] == 50)) { 
?>
    <div class="popup">
        <form role="form" method='post' action='test.php'>
            <fieldset>
                <h2 class="blink_me" style="color:green;font-size:40px;"><?php if ($_SESSION['views'] == 2) { echo $bonval = $first; } elseif ($_SESSION['views'] == 5) { echo $bonval = $third; } elseif ($_SESSION['views'] == 10) { echo $bonval = $second; } elseif ($_SESSION['views'] == 20) { echo $bonval = $second; } elseif ($_SESSION['views'] == 50) { echo $bonval = $first; } ?></h2>

                <div class="form-group">
                    <center><div class="g-recaptcha" data-sitekey="sitekey"></div></center>
                </div>
                <div class="row">
                    <center><input type="submit" name="submit" class="btn btn-lg btn-success btn-block" value="Submit"></center>
                </div>
            </fieldset>
        </form>
    </div>
<?php
 }


if (isset($_POST['submit'])) {
    if(!empty($recaptcha)) {
        require("getCurlData.php");
        $google_url="https://www.google.com/recaptcha/api/siteverify";  
        $secret='6LdriBAUAAAAAFTwQuLozpK9V2qsZAA5gTtBV60G';    
        $ip=$_SERVER['REMOTE_ADDR'];
        $url=$google_url."?secret=".$secret."&response=".$recaptcha."&remoteip=".$ip;
        $resp=getCurlData($url); 
        if($resp['success']) {
            $db->fetchVal("insert into  log (`user_id`,`amount`) values (?,?) ", [$id, $bonval]); } 
        } else {
            $_SESSION['views'] = $_SESSION['views']-1;
        }
    }
}
?>

我收到此错误：

插入日志 (`user_id`,`amount`) 值 (?,?) 数组 ( [0] => 9 [1] => ) 数组 ( [0] => 23000 [1] => 1048 [ 2] => 列“数量”不能为空）数组（[0] => 数组（[file] =>

这段代码有什么问题，或者有更好的方法吗？

Answer 1

这里有一些事情可以尝试。创建一些函数来整理您的脚本并在表单中提交您需要的变量或分配给$_SESSION。

function hasView()
    {
        # Use an array instead of a bunch of OR
        $filter =   array(2,5,10,20,50);
        return (in_array($_SESSION['views'],$filter));
    }

# Create a switch here, but you may want a default otherwise it will be null
# if none of the conditions are met
function getBonVal($first,$second,$third)
    {
         switch($_SESSION['views']) {
             case(2):
                return $first;
            case(5):
                return $third;
            case(10):
                return $second;
            case(20):
                return $second;
            case(50):
                return $first;
         }
    }

# Create a cURL function, no reason not to to keep this contained
function getGoogleRecaptcha($secret = 'key-here')
    {
        require_once("getCurlData.php");
        $google_url =   "https://www.google.com/recaptcha/api/siteverify"; 
        $ip         =   $_SERVER['REMOTE_ADDR'];
        $url        =   $google_url."?secret=".$secret."&response=".$recaptcha."&remoteip=".$ip;
        return getCurlData($url); 
    }

if(!isset($_SESSION['views'])) 
    $_SESSION['views'] = 0;
# This will increment by 1
$_SESSION['views']++;
# If you don't need these anywhere else in the page,
# maybe put them into the function
$first  =   mt_rand(10,20);
$second =   mt_rand(40,50);
$third  =   mt_rand(60,70);
# Use the function instead of all the OR clauses
if (hasView()) { 
    # Get the value here instead of in the middle of the html
    $bonval =   getBonVal($first,$second,$third);
    # Set value to session
    $_SESSION['bonval'] = $bonval;
?>
<div class="popup">
    <form role="form" method='post' action='test.php'>
        <fieldset>
            <h2 class="blink_me" style="color:green;font-size:40px;"><?php echo $bonval ?></h2>
            <div class="form-group">
                <center>
                    <div class="g-recaptcha" data-sitekey="sitekey"></div>
                </center>
            </div>
            <div class="row">
                <center>
                    <input type="submit" name="submit" class="btn btn-lg btn-success btn-block" value="Submit">
                </center>
            </div>
        </fieldset>
    </form>
</div>
<?php
}

if(isset($_POST['submit'])) {
    if(!empty($recaptcha)) {
        # Use the recaptcha function here
        $resp   =   getGoogleRecaptcha();
        if($resp['success']) {
            # Capture value from session
            $bonval =   $_SESSION['bonval'];
            # Insert normally
            $db->fetchVal("insert into log (`user_id`,`amount`) values (?,?)", array($id, $bonval));
        }
    }
    else {
        # This will auto-decrease by 1
        $_SESSION['views']--;
    }
}