Session_start通过网络无法正常工作，我收到此错误，我该如何解决？
我有2个php页面，第一个是“sample.php”，另一个是“survey.php”。问题是，当我在我的本地机器上运行它工作正常，但当我尝试打开另一台机器通过网络它显示我这个错误。这个错误如下所示在“sample.php”和下面是我的代码为sample.php和survey.php .. sample.php和survey.php中的这个错误就像指向session_start（），我不知道如何解决它。有人请帮我解决这个问题。请... / p>
下面的图片是sample.php的错误
这是sample.php的代码
<body bgcolor="black">
<div class="container-fluid">
<div class="row header">
<div class="col-md-12">
<img src="image/header.png" class="img-responsive">
<div id="login"><a href="#login-box" class="login-window">Login</a> </div><!--End of Div login-->
</div>
</div>
<div id="login-box" class="login-popup">
<a href="sample - Copy.php" class="close">Close</a>
<form method="POST" class="signin" action="" name="Login">
<fieldset class="textbox">
<label class="username">
<span>Username or email</span>
<input id="username" name="user" value="" type="text" autocomplete="on" placeholder="Username" required/>
</label>
<label class="password">
<span>Password</span>
<input id="password" name="pass" value="" type="password" autocomplete="on" placeholder="Password" required/>
</label>
<button id="submit" type="submit" name="submit">Login</button>
</fieldset>
</form>
<?php
if(isset($_POST["submit"])){
if(!empty($_POST['user']) && !empty($_POST['pass'])) {
$user=$_POST['user'];
$pass=$_POST['pass'];
$con=mysql_connect('localhost','root','') or die(mysql_error());
mysql_select_db('region_survey') or die("cannot select DB");
$query=mysql_query("SELECT * FROM survey_login WHERE username='".$user."' AND password='".$pass."'");
$numrows=mysql_num_rows($query);
if($numrows!=0)
{
while($row=mysql_fetch_assoc($query))
{
$dbusername=$row['username'];
$dbpassword=$row['password'];
}
if($user == $dbusername && $pass == $dbpassword)
{
//Code for alert message
//after hitting ok redirect to TABLE.php
//echo "<script>
//alert('There are no fields to generate a report');
//window.location.href='admin/ahm/panel';
session_start();
$_SESSION['username']=$user;
/* Redirect browser */
header('location:Survey.php');
}
}
else {
//header("Location: sample - Copy.php");
$message = "Invalid Username or Password";
echo "<script type='text/javascript'>alert('$message');</script>";
}
}
}
?>
</div><!--End of Pop up Login-->
<div id="Slider">
<div class="items">
<center><img src="image/1.jpg" class="img-responsive"></center>
</div><!--End of Items-->
<div class="items">
<center><img src="image/2.jpg" class="img-responsive"></center>
</div><!--End of items-->
<div class="items">
<center><img src="image/3.jpg" class="img-responsive"></center>
</div>
<div class="items">
<center><img src="image/4.jpg" class="img-responsive"></center>
</div>
<div class="items">
<center><img src="image/5.jpg" class="img-responsive"></center>
</div>
<div class="items">
<center><img src="image/6.jpg" class="img-responsive"></center>
</div>
</div><!--End of Slider-->
<!--Start of Footer-->
<div class="row footer">
<p>Copyright © 2015</p>
</div><!--End of Footer-->
</div><!--End of Cotainer-Fluid-->
</body>
</html>
，这是survey.php的错误
，这是survey.php的代码
<?php
session_start();
$conn = mysql_connect("localhost", "root", "");
if(!$conn){
die("Error: ".mysql_error());
}
mysql_select_db("region_survey",$conn);
$result = mysql_query("SELECT * FROM municipality");
?>
<!DOCTYPE html>
<html lang="en">
<head>
<!--<meta charset="UTF-8">-->
<meta http-equiv="Content-type" content="text/html; charset=UTF-8">
<title>Region 5 Survey</title>
<link rel="shortcut icon" href="image/icon.ico"/>
<link rel="stylesheet" type="text/css" href="css/bootstrap.css">
<script type="text/javascript" src="js/jquery-2.1.3.min.js"></script>
<!--Datatables PLugin-->
<link type="text/css" rel="stylesheet" href="datatable/media/css/jquery.dataTables_themeroller.css">
<link type="text/css" rel="stylesheet" href="datatable/media/css/jquery.dataTables.css">
<script type="text/javascript" src="datatable/media/js/jquery.js"></script>
<script type="text/javascript" src="datatable/media/js/jquery.dataTables.js"> </script>
</head>
<body bgcolor="black">
<div class="container-fluid">
<div class="row header">
<div class="col-md-12">
<img src="image/header.png" class="img-responsive">
<div id="logout"><a href="logout.php">Logout</a></div><!--End of Div login-->
</div>
</div>
<div id="Session">
<?php
if (@$_SESSION['username'])
echo "Welcome, ".$_SESSION['username']. "";
else
header("location:sample - Copy.php");
?>
</div>
<div id="login-box" class="login-popup">
<a href="Survey.php" class="close">Close</a>
<form method="POST" class="signin" action="" name="Add" target="iframe">
<fieldset class="textbox">
<label class="Province">
<span>Province</span>
<select name="province" class="textfields" id="province" onchange="populate(this.id,'municipality')">
<option id="">Province</option>
<option value="Albay">Albay</option>
<option value="Camnorte">Camarines Norte</option>
<option value="Camsur1">Camarines Sur 1</option>
<option value="Camsur2">Camarines Sur 2</option>
<option value="Catanduanes">Catanduanes</option>
<option value="Masbate">Masbate</option>
<option value="Sorsogon">Sorsogon</option>
</select>
</label>
<label class="Date_Submitted">
<span>Date Submitted</span>
<input type="date" name="date" id="date" value="">
</label>
<label class="Survey_Number">
<span>Survey Number</span>
<input id="survey_number" name="survey_number" type="text" value="" autocomplete="on" placeholder="Survey Number">
</label>
<label class="Land_Type">
<span>Land Type</span>
<input id="land_type" name="land_type" value="" type="text" autocomplete="on" placeholder="Land Type">
</label>
<label class="C-Size">
<span>C-Size</span>
<input id="c_size" name="c_size" value="" type="number" autocomplete="on" placeholder="C_Size" onKeyPress="return isNumber(event)">
</label>
<label class="Contractor">
<span>Contractor</span>
<input id="contrctor" name="contractor" value="" type="text" autocomplete="on" placeholder="Contractor">
</label>
<label class="Module_Number">
<span>Module Number</span>
<input id="module_number" name="module_number" value="" type="text" autocomplete="on" placeholder="Module Number">
</label>
<label class="Lad_Target">
<span>LAD Target</span>
<input id="Lad_Target" name="Lad_Target" value="" type="text" autocomplete="on" placeholder="LAD Target">
</label>
<label class="Fund_Year">
<span>Fund Year</span>
<input id="fund_year" name="fund_year" value="" type="text" autocomplete="on" placeholder="Fund Year">
</label>
<label class="Land_Category">
<span>Land Category</span>
<input id="land_category" name="land_category" value="" type="text" autocomplete="on" placeholder="Land Category">
</label>
<label class="Title_Number">
<span>Title Number</span>
<input id="title_number" name="title_number" value="" type="text" autocomplete="on" placeholder="Title Number">
</label>
<label class="W_Bal">
<span>W_Bal</span>
<input id="w_bal" name="w_bal" value="" type="text" autocomplete="on" placeholder="W_Bal">
</label>
<label class="Lot_number">
<span>Lot Number</span>
<input id="lot_number" name="lot_number" value="" type="text" autocomplete="on" placeholder="Lot Number">
</label>
<label class="Project_Number">
<span>Project Number</span>
<input id="proj_number" name="proj_number" value="" type="text" autocomplete="on" placeholder="Project Number">
</label>
<label class="Agency">
<span>Agency</span>
<input id="agency" name="agency" value="" type="text" autocomplete="on" placeholder="Agency">
</label>
<label class="Location">
<span>Location</span>
<select name="municipality" id="municipality" style="background:#666666; color:#FFFFFF; font-size:13px; height:30px; font-family:Arial, Helvetica, sans-serif;">
<option id="">Municipality</option>
</select>
</label>
<label class="Date_Surveyed">
<span>Date Surveyed</span>
<input id="date_surveyed" name="date_surveyed" value="" type="date">
</label>
<label class="No_Lots">
<span>Number of Lots</span>
<input id="no_lots" name="no_lots" value="" type="number" autocomplete="on" placeholder="Number of Lots" onKeyPress="return isNumber(event)">
</label>
<label class="Area">
<span>Area</span>
<input id="area" name="area" value="" type="number" autocomplete="on" placeholder="Area">
</label>
<label class="LO_Name">
<span>Land Owner Name</span>
<input id="lo_name" name="lo_name" value="" type="text" autocomplete="on" placeholder="Land Owner Name">
</label>
<label class="TimesRet">
<span>Times Returned</span>
<select name="times_ret" style="background:#666666; color:#FFFFFF; font-size:13px; height:30px; font-family:Arial, Helvetica, sans-serif;">
<option selected="selected" disabled="disabled">---</option>
<option value="1">1</option>
<option value="2">2</option>
<option value="3">3</option>
<option value="4">4</option>
<option value="5">5</option>
<option value="6">6</option>
</select>
</label>
<label class="Times_resub">
<span>Times Resubmitted</span>
<select name="times_resub" style="background:#666666; color:#FFFFFF; font-size:13px; height:30px; font-family:Arial, Helvetica, sans-serif;">
<option selected="selected" disabled="disabled">---</option>
<option value="1">1</option>
<option value="2">2</option>
<option value="3">3</option>
<option value="4">4</option>
<option value="5">5</option>
<option value="6">6</option>
</select>
</label>
<label class="Date_Ret1">
<span>Date Returned 1</span>
<input id="date_ret" name="date_ret" value="" type="date">
</label>
<label class="Date_Resub1">
<span>Date Resubmitted 1</span>
<input id="date_resub1" name="date_resub1" value="" type="date">
</label>
<label class="Date_Ret2">
<span>Date Returned 2</span>
<input id="date_ret2" name="date_ret2" value="" type="date">
</label>
<label class="Date_Resub2">
<span>Date Resubmitted 2</span>
<input id="date_resub2" name="date_resub2" value="" type="date">
</label>
<label class="Date_Ret3">
<span>Date Returned 3</span>
<input id="date_ret3" name="date_ret3" value="" type="date">
</label>
<label class="Date_Resub3">
<span>Date Resubmitted 3</span>
<input id="date_resub3" name="date_resub3" value="" type="date">
</label>
<label class="Date_Suspend">
<span>Date Suspend</span>
<input id="date_suspend" name="date_suspend" value="" type="date">
</label>
<label class="Date_Completed">
<span>Date Completed</span>
<input id="date_completed" name="date_completed" value="" type="date">
</label>
<label class="Station">
<span>Station</span>
<select name="station" style="background:#666666; color:#FFFFFF; font-size:13px; height:30px; font-family:Arial, Helvetica, sans-serif;">
<option selected="selected" disabled="disabled">---</option>
</select>
</label>
<label class="Date_Approved">
<span>Date Approved</span>
<input id="date_approved" name="date_approved" value="" type="date">
</label>
<label class="Date_Dar">
<span>Date DAR</span>
<input id="date_dar" name="date_dar" value="" type="date">
</label>
<label class="Date_PARO">
<span>Date PARO</span>
<input id="date_paro" name="date_paro" value="" type="date">
</label>
<label class="Cert_40">
<span>Cert 40</span>
<input id="cert_40" name="cert_40" value="" type="text" autocomplete="on" placeholder="Cert 40">
</label>
<label class="Date_Reported">
<span>Date Reported</span>
<input id="date_reported" name="date_reported" value="" type="date">
</label>
<br />
<label class="Remarks">
<span>Remarks</span>
<textarea id="remarks" name="remarks" rows="10" cols="60" style="font-family:Arial, Helvetica, sans-serif; font-size:13px;">
</textarea>
<br />
<button id="submit" type="submit" name="submit">Save</button>
<button id="submit" type="reset" name="reset">Reset</button>
</fieldset>
</form>
<iframe src="about:blank" style="display:none" id="iframe" name="iframe"></iframe>
<script type="text/javascript">
var iframe = document.getElementById("iframe");
iframe.onload = function () { formSubmitResponse(iframe); };
function formSubmitResponse(iframe) {
var idocument = (iframe.contentDocument || iframe.contentWindow.document);
if(idocument) {
var responseFromBackend = idocument.getElementsByTagName("body")[0].innerHTML;
}
}
</script>
</div>
<!--End-->
<div class="add_record">
<a href="export.php"><input name="image" type="image" value="download" onClick="return confirm('Are you sure you want to download?');" src="image/Download.png" class="img-responsive" width="40px" height="40px"></a>
</div>
<form action="delete.php" method="post">
<div class="add_record">
<input name="image" type="image" value="delete" onClick="return confirm('Are you sure you want to delete?');" src="image/DELETE.png" class="img-responsive" width="40px" height="40px">
</div>
<div class="add_record">
<a href="#login-box" class="login-window"><input name="images" type="image" value="add" src="image/Add_record.ico" class="img-responsive" width="40px" height="40px"></a>
</div>
<div id="clear">
</div>
<hr>
<br />
<div id="datatable_wrapper">
<table id="datatables" class="display" cellspacing="0" width="100%">
<thead>
<tr>
<th>LO Name</th>
<th>Province</th>
<th>Location</th>
<th>Title Number</th>
<th>Lot Number</th>
<th>Survey Status</th>
<th>Survey Number</th>
<th>Project No</th>
<th>Module No</th>
<th>Area</th>
<th>Date Approved</th>
<th>Received by DAR</th>
<th>To PARO</th>
<th>Date Surveyed</th>
<th>Date Submitted</th>
<th>Ret1</th>
<th>Resub1</th>
<th>Ret2</th>
<th>Resub2</th>
<th>Ret3</th>
<th>Resub3</th>
<th>Fund Year</th>
<th>Remarks</th>
<th>Action</th>
</tr>
</thead>
<tbody>
<?php
//Loop through the result set just as you would loop
//through a normal mysql result set
while($row = mysql_fetch_array($result)){
?>
<tr>
<td><?php echo $row['id']; ?></td>
<td><?php echo $row['province_id']; ?></td>
<td><?php echo $row['municipality_name']; ?></td>
<td><input name="selector[]" type="checkbox"
id="checkbox[]" value="<?php echo $row['id'];?>">
<a href="update.php<?php echo '?id='.$row['id']; ?>">Edit</a></td>
</tr>
<?php
}
?>
</tbody>
</table>
</div>
</form>
<!--Start of Footer-->
<div class="row footer">
<p>Copyright © 2015</p>
</div><!--End of Footer-->
</div><!--End of Cotainer-Fluid-->
</body>
</html>
2 个答案:
答案 0 :(得分：1)
PHP session_start()只能在网页中回显任何内容之前启动，即网页上的任何输出。以下是您正在使用已弃用的mysql_*函数，因此在会话开始之前您将收到该错误消息。我建议您使用mysqli_*或PDO。暂时使用以下方法关闭页面中的警告消息和错误消息：
error_reporting(0); //or
ini_set('display_errors', 0);
答案 1 :(得分：1)
您需要将PHP配置为不呈现E_DEPRECATED通知，或修复弃用通知。您应该使用mysqli而不是mysql客户端。
在会话开始之前，不能将任何输出发送回浏览器。
在你的php.ini
中error_reporting = E_ALL & ~E_DEPRECATED
或者在你的剧本中：
ini_set("error_reporting", E_ALL & ~E_DEPRECATED);
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