这两天公司新项目写一个问卷调查小功能，当时因为问题都是循环进行展示提交，所以写到一个php文件中，但是完成后进行测试，当一路点击提交代码结果显示正常，但是当问卷到第三页时点击浏览器返回按钮，网页直接报错，瞬间懵逼啊！没有任何日志！代码如下：

<?phpif(!isset($_SESSION)){session_start();}$_SESSION['username'] = "zhangminchao";$data1 = '{"paper":{"paperId":"EECD144E3B9141E590A26F968678BD2F","questionList":[{"questionId":"1","content":"请问您毕业学校为？","type":"2","choiceList":[{"choiceId":"A","choiceValue":"浙江财经大学"},{"choiceId":"B","choiceValue":"清华北大2"},{"choiceId":"C","choiceValue":"上海工程技术大学"},{"choiceId":"D","choiceValue":"清华北大1"},{"choiceId":"E","choiceValue":"以上皆否"}]},{"questionId":"2","content":"请问您的房贷每月还款日？","type":"1","choiceList":[{"choiceId":"A","choiceValue":"22日"},{"choiceId":"B","choiceValue":"11日"},{"choiceId":"C","choiceValue":"30日"},{"choiceId":"D","choiceValue":"7日"},{"choiceId":"E","choiceValue":"以上皆否"}]},{"questionId":"3","content":"请问您的籍贯为？","type":"1","choiceList":[{"choiceId":"A","choiceValue":"dddd5"},{"choiceId":"B","choiceValue":"dddd2"},{"choiceId":"C","choiceValue":"dddd6"},{"choiceId":"D","choiceValue":"dddd1"},{"choiceId":"E","choiceValue":"以上皆否"}]},{"questionId":"4","content":"请问您的配偶为？","type":"1","choiceList":[{"choiceId":"A","choiceValue":"增八"},{"choiceId":"B","choiceValue":"邢紫丝"},{"choiceId":"C","choiceValue":"姜思娴"},{"choiceId":"D","choiceValue":"左书文"},{"choiceId":"E","choiceValue":"以上皆否"}]},{"questionId":"5","content":"请问您的消费贷款月还款额？","type":"1","choiceList":[{"choiceId":"A","choiceValue":"500"},{"choiceId":"B","choiceValue":"7500"},{"choiceId":"C","choiceValue":"1000"},{"choiceId":"D","choiceValue":"4000"},{"choiceId":"E","choiceValue":"以上皆否"}]}]}}';$data = json_decode($data1,true);$tem =  array_keys($data['paper']['questionList']);$sum = count($tem);$time = time();$username = $_SESSION['username'];if($_SERVER['REQUEST_METHOD'] == 'POST'){$result['answer']   = $_POST['answer'];$result['paperId']  = $_POST['paperid'];$time1              = $_POST['time'];$result['time']     = $time - $time1;//echo $result['time'];$result['id']       = $_POST['id'];$result['truck']    = $_SESSION[$username.$result['id']];$param = $_SESSION['param'];$n     = $result['id']-1;$param['answer'][$n] = $result;if($result['id'] == $sum){$param = json_encode($param);var_dump($param); //结束//header("Location:../shouye/index.php");
            exit;}else{$_SESSION['param'] = $param;$i = $result['id'];  }}else{//首次进入$_SESSION['param'] = array();$i = 0;for($l=0;$l<=$sum;$l++){if(isset($_SESSION[$username.$l])){$_SESSION[$username.$l] = "";}}}
?>
<!DOCTYPE html>
<html>
<head>
<meta  charset=utf-8" />
<meta name="viewport" content="width=device-width,height=device-height,inital-scale=1.0,maximum-scale=1.0,user-scalable=no;">
<meta name="format-detection" content="telephone=no">
<meta http-equiv="Cache-Control" content="no-cache"/>
<title></title>
<link href="./css/style.css" rel="stylesheet" type="text/css" />
</head><body>
<div class="whole"><!--头部信息--><div class="head"><div class="t_pic"><img src="img/head.png" /></div><div class="t_tit"><p>小邑金服问卷调查活动</p></div></div><!--选择单选题目--><div class="t_con"><div class="con_tit"><p>&nbsp;请选择</p><p><?php echo ($i+1)."、";echo $data['paper']['questionList'][$i]['content'];?></p></div><div class="con_con"><ul><form id="formid1"  action="quest.php" class="mui-input-group" method="post"> <?phpif($data['paper']['questionList'][$i]['type'] == "1"){foreach($data['paper']['questionList'][$i]['choiceList'] as $val){echo "
                                <li><div class='checkboxFour'><input type='radio' value='$val[choiceId]' id='questid' name='answer' οnblur='getTruck(this.value);'/><span>$val[choiceValue]</span></div></li>   ";
                        }}else{foreach($data['paper']['questionList'][$i]['choiceList'] as $val){echo "
                            <li><div class='checkboxFour'><input type='checkbox' value='$val[choiceId]' id='questid' name='answer[]' οnblur='getTruck(this.value);'/><span>$val[choiceValue]</span> </div> ";
                               }}?></li><input type="hidden" id="paperId" name="paperid" class="mui-input-clear" value="<?php echo $data['paper']['paperId'];?>" ><input type="hidden" id="time"    name="time"    class="mui-input-clear" value="<?php echo $time;?>" ><input type="hidden" id="type"    name="type"    class="mui-input-clear" value="<?php echo $data['paper']['questionList'][$i]['type']?>" ><input type="hidden" id="id"    name="id"    class="mui-input-clear" value="<?php echo ($i+1);?>" ></form></ul></div></div><!--上提下题按钮--><div class="t_btn"><button  οnclick="huankuan();" type="button">立即提交</button></div><!--提示遮罩层--><div class="ts_mask"><div class="tishi"><!-- <div class="qd"></div> --><img src="img/mxz_ts.png" /></div></div></div><script language="javascript" type="text/javascript" src="js/jquery-1.7.2.min.js"></script><script>function huankuan(){var type = document.getElementById("questid").type; if(type == "radio"){var returnType = $('input:radio:checked').val();   }else{var returnType = $("input:checkbox:checked").val();}//alert(returnType);if(typeof(returnType) == "undefined"){alert("请您选择答案");return false;}document.getElementById("formid1").submit();}function getTruck(data){var checkid = data;var questid = $("#id").val();$.ajax({'url':"getTruck.php",'type':"POST",'dataType':"json",'data':{questid:questid,checkid:checkid},'success':function(data){$data = JSON.stringify(data);alert($data);}});}</script>
</body>
</html>

没办法，还是存在问题，然后百度，网上找相关的问题解决方案，但是一无所获。还是自己定位吧。把文件分开处理，还是无果，最后想到是否是php处理代码和html代码在同一页面导致的。所以赶紧进行分开。最终成功。如下代码：

<?phpif(!isset($_SESSION)){session_start();}$_SESSION['username'] = "zhangminchao";$data1 = '{"paper":{"paperId":"EECD144E3B9141E590A26F968678BD2F","questionList":[{"questionId":"1","content":"请问您毕业学校为？","type":"2","choiceList":[{"choiceId":"A","choiceValue":"浙江财经大学"},{"choiceId":"B","choiceValue":"清华北大2"},{"choiceId":"C","choiceValue":"上海工程技术大学"},{"choiceId":"D","choiceValue":"清华北大1"},{"choiceId":"E","choiceValue":"以上皆否"}]},{"questionId":"2","content":"请问您的房贷每月还款日？","type":"1","choiceList":[{"choiceId":"A","choiceValue":"22日"},{"choiceId":"B","choiceValue":"11日"},{"choiceId":"C","choiceValue":"30日"},{"choiceId":"D","choiceValue":"7日"},{"choiceId":"E","choiceValue":"以上皆否"}]},{"questionId":"3","content":"请问您的籍贯为？","type":"1","choiceList":[{"choiceId":"A","choiceValue":"dddd5"},{"choiceId":"B","choiceValue":"dddd2"},{"choiceId":"C","choiceValue":"dddd6"},{"choiceId":"D","choiceValue":"dddd1"},{"choiceId":"E","choiceValue":"以上皆否"}]},{"questionId":"4","content":"请问您的配偶为？","type":"1","choiceList":[{"choiceId":"A","choiceValue":"增八"},{"choiceId":"B","choiceValue":"邢紫丝"},{"choiceId":"C","choiceValue":"姜思娴"},{"choiceId":"D","choiceValue":"左书文"},{"choiceId":"E","choiceValue":"以上皆否"}]},{"questionId":"5","content":"请问您的消费贷款月还款额？","type":"1","choiceList":[{"choiceId":"A","choiceValue":"500"},{"choiceId":"B","choiceValue":"7500"},{"choiceId":"C","choiceValue":"1000"},{"choiceId":"D","choiceValue":"4000"},{"choiceId":"E","choiceValue":"以上皆否"}]}]}}';$data = json_decode($data1,true);$tem =  array_keys($data['paper']['questionList']);$sum = count($tem);$time = time();$username = $_SESSION['username'];$result['answer']   = $_POST['answer'];$time1              = $_POST['time'];$result['time']     = $time - $time1;//echo $result['time'];$result['id']       = $_POST['id'];$result['truck']    = $_SESSION[$username.$result['id']];$param = $_SESSION['param'];$n     = $result['id']-1;$param['answer'][$n] = $result;if($result['id'] == $sum){$param = json_encode($param);var_dump($param); //结束//header("Location:../shouye/index.php");exit;}else{$_SESSION['param'] = $param;header("location:quest1h.php?questid=1");exit;  }
?>

<?php
if(!isset($_SESSION)){session_start();}$_SESSION['username'] = "zhangminchao";$data1 = '{"paper":{"paperId":"EECD144E3B9141E590A26F968678BD2F","questionList":[{"questionId":"1","content":"请问您毕业学校为？","type":"2","choiceList":[{"choiceId":"A","choiceValue":"浙江财经大学"},{"choiceId":"B","choiceValue":"清华北大2"},{"choiceId":"C","choiceValue":"上>海工程技术大学"},{"choiceId":"D","choiceValue":"清华北大1"},{"choiceId":"E","choiceValue":"以上皆否"}]},{"questionId":"2","content":"请问您的房贷每月还款日？","type":"1","choiceList":[{"choiceId":"A","choiceValue":"22日"},{"choiceId":"B","choiceValue":"11日"},{"choiceId":"C","choiceValue":"30日"},{"choiceId":"D","choiceValue":"7日"},{"choiceId":"E","choiceValue":"以上皆否"}]},{"questionId":"3","content":"请问您的籍贯为>？","type":"1","choiceList":[{"choiceId":"A","choiceValue":"dddd5"},{"choiceId":"B","choiceValue":"dddd2"},{"choiceId":"C","choiceValue":"dddd6"},{"choiceId":"D","choiceValue":"dddd1"},{"choiceId":"E","choiceValue":"以上皆否"}]},{"questionId":"4","content":"请问您的配偶为？","type":"1","choiceList":[{"choiceId":"A","choiceValue":"增八"},{"choiceId":"B","choiceValue":"邢紫丝"},{"choiceId":"C","choiceValue":"姜思娴"},{"choiceId":"D","choiceValue":"左书文"},{"choiceId":"E","choiceValue":"以上皆否"}]},{"questionId":"5","content":"请问您的消费贷款月还款额？","type":"1","choiceList":[{"choiceId":"A","choiceValue":"500"},{"choiceId":"B","choiceValue":"7500"},{"choiceId":"C","choiceValue":"1000"},{"choiceId":"D","choiceValue":"4000"},{"choiceId":"E","choiceValue":"以上皆否"}]}]}}';$data = json_decode($data1,true);$time = time();
$i = $_GET['questid'];
?>
<!DOCTYPE html>
<html>
<head>
<meta  charset=utf-8" />
<meta name="viewport" content="width=device-width,height=device-height,inital-scale=1.0,maximum-scale=1.0,user-scalable=no;">
<meta name="format-detection" content="telephone=no">
<meta http-equiv="Cache-Control" content="no-cache"/>
<title></title>
<link href="./css/style.css" rel="stylesheet" type="text/css" />
</head><body>
<div class="whole"><!--头部信息--><div class="head"><div class="t_pic"><img src="img/head.png" /></div><div class="t_tit"><p>小邑金服问卷调查活动</p></div></div><!--选择单选题目--><div class="t_con"><div class="con_tit"><p>&nbsp;请选择</p><p><?php echo ($i+1)."、";echo $data['paper']['questionList'][$i]['content'];?></p></div><div class="con_con"><ul><form id="formid1"  action="quest2.php" class="mui-input-group" method="post"> <?phpif($data['paper']['questionList'][$i]['type'] == "1"){foreach($data['paper']['questionList'][$i]['choiceList'] as $val){echo "<li><div class='checkboxFour'><input type='radio' value='$val[choiceId]' id='questid' name='answer' οnblur='getTruck(this.value);'/><span>$val[choiceValue]</span></div></li>   ";}}else{foreach($data['paper']['questionList'][$i]['choiceList'] as $val){echo "<li><div class='checkboxFour'><input type='checkbox' value='$val[choiceId]' id='questid' name='answer[]' οnblur='getTruck(this.value);'/><span>$val[choiceValue]</span> </div> ";}}?></li><input type="hidden" id="time"    name="time"    class="mui-input-clear" value="<?php echo $time;?>" ><input type="hidden" id="type"    name="type"    class="mui-input-clear" value="<?php echo $data['paper']['questionList'][$i]['type']?>" ><input type="hidden" id="id"    name="id"    class="mui-input-clear" value="<?php echo ($i+1);?>" ></form></ul></div></div><!--上提下题按钮--><div class="t_btn"><button  οnclick="huankuan();" type="button">立即提交</button></div><!--提示遮罩层--><div class="ts_mask"><div class="tishi"><!-- <div class="qd"></div> --><img src="img/mxz_ts.png" /></div></div></div><script language="javascript" type="text/javascript" src="js/jquery-1.7.2.min.js"></script><script>function huankuan(){var type = document.getElementById("questid").type; if(type == "radio"){var returnType = $('input:radio:checked').val();   }else{var returnType = $("input:checkbox:checked").val();}//alert(returnType);if(typeof(returnType) == "undefined"){alert("请您选择答案");return false;}document.getElementById("formid1").submit();}function getTruck(data){var checkid = data;var questid = $("#id").val();$.ajax({'url':"getTruck.php",'type':"POST",'dataType':"json",'data':{questid:questid,checkid:checkid},'success':function(data){$data = JSON.stringify(data);alert($data);}});}</script>
</body>
</html>

转载于:https://www.cnblogs.com/52-hz/p/7389005.html

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