我经营一个梦幻篮球联赛。我的php网站/ sql数据库旨在让运行团队的人通过网站做所有事情 - 他们可以放弃玩家，玩家自动进入FA池等。
直到大约一周前，一切都运转良好。现在任何时候团队去签署一个玩家，点击“签名”后，他们会得到一个空白的PHP页面。我不知道为什么 - 我没有对任何文件进行调整。它刚刚开始发生。下面是空白PHP页面的代码 - 有人可以帮忙吗？<?php
$username = "me";
$password = "mypassword";
$database = "mydatabase";
mysql_connect(localhost,$username,$password);
@mysql_select_db($database) or die( "Unable to select database");
$Team_Offering = $_POST['Team_Name'];
$Fields_Counter = $_POST['counterfields'];
$Roster_Slots = $_POST['rosterslots'];
$Healthy_Roster_Slots = $_POST['healthyrosterslots'];
$Type_Of_Action = $_POST['Action'];
$queryt="SELECT * FROM nuke_ibl_team_info WHERE team_name = '$Team_Offering' ";
$resultt=mysql_query($queryt);
$teamid=mysql_result($resultt,0,"teamid");
$Timestamp = intval(time());
// ADD TEAM TOTAL SALARY FOR THIS YEAR
$querysalary="SELECT * FROM nuke_iblplyr WHERE teamname = '$Team_Offering' AND retired = 0 ";
$results=mysql_query($querysalary);
$num=mysql_numrows($results);
$z=0;
while($z < $num)
{
$cy=mysql_result($results,$z,"cy");
$cyy = "cy$cy";
$cy2=mysql_result($results,$z,"$cyy");
$TotalSalary = $TotalSalary + $cy2;
$z++;
}
//ENT TEAM TOTAL SALARY FOR THIS YEAR
$k=0;
$Salary=0;
while ($k < $Fields_Counter)
{
$Type=$_POST['type'.$k];
$Salary=$_POST['cy'.$k];
$Index=$_POST['index'.$k];
$Check=$_POST['check'.$k];
$queryn="SELECT * FROM nuke_iblplyr WHERE pid = '$Index' ";
$resultn=mysql_query($queryn);
$playername=mysql_result($resultn,0,"name");
$players_team=mysql_result($resultn,0,"tid");
if ($Check == "on")
{
if ($Type_Of_Action == "drop")
{
if ($Roster_Slots < 4 and $TotalSalary > 7000)
{
echo "You have 12 players and are over $70 mill hard cap. Therefore you can't drop a player! <br>You will be automatically redirected to <a href=\"http://www.chibul.com/iblv2\">the main IBL page</a> in a moment. If you are not redirected, click the link.";
}else{
$queryi = "UPDATE nuke_iblplyr SET `ordinal` = '1000', `droptime` = '$Timestamp' WHERE `pid` = '$Index' LIMIT 1;";
$resulti=mysql_query($queryi);
$topicid=32;
$storytitle=$Team_Offering." make waiver cuts";
$hometext="The ".$Team_Offering." cut ".$playername." to waivers.";
// ==== PUT ANNOUNCEMENT INTO DATABASE ON NEWS PAGE
$timestamp=date('Y-m-d H:i:s',time());
$querycat="SELECT * FROM nuke_stories_cat WHERE title = 'Waiver Pool Moves'";
$resultcat=mysql_query($querycat);
$WPMoves=mysql_result($resultcat,0,"counter");
$catid=mysql_result($resultcat,0,"catid");
$WPMoves=$WPMoves+1;
$querycat2="UPDATE nuke_stories_cat SET counter = $WPMoves WHERE title = 'Waiver Pool Moves'";
$resultcat2=mysql_query($querycat2);
$querystor="INSERT INTO nuke_stories (catid,aid,title,time,hometext,topic,informant,counter,alanguage) VALUES ('$catid','Associated Press','$storytitle','$timestamp','$hometext','$topicid','Associated Press','0','english')";
$resultstor=mysql_query($querystor);
echo "<html><head><title>Waiver Processing</title>
</head>
<body>
Your waiver moves should now be processed. <br>You will be automatically redirected to <a href=\"http://www.chibul.com/iblv2\">the main IBL page</a> in a moment. If you are not redirected, click the link.
</body></html>";
}
} else {
if ($players_team == $teamid)
{
$queryi = "UPDATE nuke_iblplyr SET `ordinal` = '800', `teamname` = '$Team_Offering', `tid` = '$teamid' WHERE `pid` = '$Index' LIMIT 1;";
$resulti=mysql_query($queryi);
$Roster_Slots++;
$topicid=33;
$storytitle=$Team_Offering." make waiver additions";
$hometext="The ".$Team_Offering." sign ".$playername." from waivers.";
// ==== PUT ANNOUNCEMENT INTO DATABASE ON NEWS PAGE
$timestamp=date('Y-m-d H:i:s',time());
$querycat="SELECT * FROM nuke_stories_cat WHERE title = 'Waiver Pool Moves'";
$resultcat=mysql_query($querycat);
$WPMoves=mysql_result($resultcat,0,"counter");
$catid=mysql_result($resultcat,0,"catid");
$WPMoves=$WPMoves+1;
$querycat2="UPDATE nuke_stories_cat SET counter = $WPMoves WHERE title = 'Waiver Pool Moves'";
$resultcat2=mysql_query($querycat2);
$querystor="INSERT INTO nuke_stories (catid,aid,title,time,hometext,topic,informant,counter,alanguage) VALUES ('$catid','Associated Press','$storytitle','$timestamp','$hometext','$topicid','Associated Press','0','english')";
$resultstor=mysql_query($querystor);
echo "<html><head><title>Waiver Processing</title>
</head>
<body>
Your waiver moves should now be processed. <br>You will be automatically redirected to <a href=\"http://www.chibul.com/iblv2\">the main IBL page</a> in a moment. If you are not redirected, click the link.
</body></html>";
} else {
if ($Healthy_Roster_Slots < 4 and $TotalSalary + $Salary > 7000)
{
echo "You have 12 or more healthy players and this signing will put you over $70. Therefore you can not make this signing. <br>You will be automatically redirected to <a href=\"http://www.chibul.com/iblv2\">the main IBL page</a> in a moment. If you are not redirected, click the link.";
} elseif ($Healthy_Roster_Slots > 3 and $TotalSalary + $Salary > 7000 and $Salary > 103) {
echo "You are over the hard cap and therefore can only sign players who are making veteran minimum contract! <br>You will be automatically redirected to <a href=\"http://www.chibul.com/iblv2\">the main IBL page</a> in a moment. If you are not redirected, click the link.";
} elseif ($Healthy_Roster_Slots < 1) {
echo "You have full roster of 15 players. You can't sign another player at this time! <br>You will be automatically redirected to <a href=\"http://www.chibul.com/iblv2\">the main IBL page</a> in a moment. If you are not redirected, click the link.";
} else {
$queryi = "UPDATE nuke_iblplyr SET `ordinal` = '800', `bird` = '0', `cy` = '1', `cy1` = '$Salary', `teamname` = '$Team_Offering', `tid` = '$teamid' WHERE `pid` = '$Index' LIMIT 1;";
$resulti=mysql_query($queryi);
$Roster_Slots++;
$topicid=33;
$storytitle=$Team_Offering." make waiver additions";
$hometext="The ".$Team_Offering." sign ".$playername." from waivers.";
// ==== PUT ANNOUNCEMENT INTO DATABASE ON NEWS PAGE
$timestamp=date('Y-m-d H:i:s',time());
$querycat="SELECT * FROM nuke_stories_cat WHERE title = 'Waiver Pool Moves'";
$resultcat=mysql_query($querycat);
$WPMoves=mysql_result($resultcat,0,"counter");
$catid=mysql_result($resultcat,0,"catid");
$WPMoves=$WPMoves+1;
$querycat2="UPDATE nuke_stories_cat SET counter = $WPMoves WHERE title = 'Waiver Pool Moves'";
$resultcat2=mysql_query($querycat2);
$querystor="INSERT INTO nuke_stories (catid,aid,title,time,hometext,topic,informant,counter,alanguage) VALUES ('$catid','Associated Press','$storytitle','$timestamp','$hometext','$topicid','Associated Press','0','english')";
$resultstor=mysql_query($querystor);
echo "<html><head><title>Waiver Processing</title>
</head>
<body>
Your waiver moves should now be processed. <br>You will be automatically redirected to <a href=\"http://www.chibul.com/iblv2\">the main IBL page</a> in a moment. If you are not redirected, click the link.
</body></html>";
}
}
}
}
$k++;
}
?>
答案 0 :(得分：11)
在打开的PHP标记后面加上以下内容：
error_reporting(E_ALL);
ini_set('display_errors', 'On');
如果这不起作用，可能存在解析错误，那么您需要检查错误日志。
您还需要转义您在查询中添加的值。这可能导致MySQL查询失败。如果有人在$ _POST ['Team_Name']中放入"，您的第一个查询可能会失败。
另一个最终可能的问题：你确定它仍然可以连接到MySQL吗？
找到问题的一个选项是注释掉大部分代码，然后逐段取消注释。
修改：首先问题是mysql_connect行。需要更改为，请注意引号：mysql_connect('localhost',$username,$password);此外，变量$result和$queryt在此行拼写错误并用于正确的拼写：$resultt=mysql_query($queryt);我没有检查其余的，但可能会有其他错误导致您的脚本中断。一些错误列表很重要，但不会破坏您的脚本。
转义：查看以下页面：http://php.net/manual/en/function.mysql-escape-string.php这基本上可以防止人们删除整个数据库。
检查this page上的示例代码，了解如何连接到MySQL并检查您是否已连接。
另一个建议：您确定没有任何查询失败吗？您可能希望在继续之前检查查询结果是否为false，例如：
if ($resultcat2 === false) {
trigger_error('query failed ' . $sql, E_USER_ERROR);
echo 'Sorry, there was a problem processing your request. Please try again later.';
exit;
}
答案 1 :(得分：2)
在php.ini文件中打开PHP的错误报告，看看是否报告了任何错误或警告。还可以尝试删除文件末尾之前的尾随空格吗？＆gt;，这在过去给我带来了问题。
答案 2 :(得分：2)
为上述部分回复添加了评论。请尽量为我愚蠢 - 我对此非常陌生。但是，当我对代码没有任何改变时，我无法弄清楚为什么它会突然停止工作。
答案 3 :(得分：2)
如果您没有对任何文件进行任何更改而且它只是“破坏”那么这表明您的webhost通过配置更改，您的数据库以某种方式被清除，或者其他人可能已经更改了某些内容。
在每一个
之后帮助发现罪魁祸首if{
else{
while{
或/和每个语句之后（语句以分号结尾;）将其添加到下一行
print "<br> made it to this label: some_unique_label_name_here";
每次都应该替换标签，以帮助您跟踪代码。 这将是您调试脚本的第一步，以确定代码执行的范围。
答案 4 :(得分：0)
如果没有详细介绍您的代码，我建议您查找可能会循环很长时间的任何部分，而不返回
答案 5 :(得分：0)
启用错误报告后，请确保放入与所有if语句对应的else语句，以便确定是否触发了这些语句。抛出一些回声。
答案 6 :(得分：0)
此外，澄清一下 - 我在网站上可能有三十几个PHP文件 - 这是唯一一个停止工作的文件。
答案 7 :(得分：0)
这就是我得到的地方......如果我把打印线放在它下面，打印线下面的所有东西都不会出现。
$k=0;
$Salary=0;
print "<br> made it to this label: some_unique_label_name_here";
while ($k < $Fields_Counter)
{
$Type=$_POST['type'.$k];
$Salary=$_POST['cy'.$k];
$Index=$_POST['index'.$k];
$Check=$_POST['check'.$k];
$queryn="SELECT * FROM nuke_iblplyr WHERE pid = '$Index' ";
$resultn=mysql_query($queryn);
$playername=mysql_result($resultn,0,"name");
$players_team=mysql_result($resultn,0,"tid");
答案 8 :(得分：0)
另外，您应该更改get或post中的每个变量，例如：
$Team_Offering = $_POST['Team_Name'];
到
$Team_Offering = mysql_real_escape_string($_POST['Team_Name']);
在mysql查询中使用它之前，否则你可能会受到SQL注入攻击。
答案 9 :(得分：0)
所以更新......没有。洛尔
如果您查看此代码：
$k=0;
$工资= 0;
print“
使它成为这个标签：some_unique_label_name_here”;
while（$ k＆lt; $ Fields_Counter）
{
$类型= $ _ POST [ '类型' $ķ。];
$工资= $ _ POST [ 'CY' $ķ。];
$指数= $ _ POST [ '索引' $ķ。];
$检查= $ _ POST [ '检查' $ķ。];
$ queryn =“SELECT * FROM nuke_iblplyr WHERE pid ='$ Index'”; $ resultn =的mysql_query（$ queryn）;
$ playername = mysql_result（$ resultn，0， “名称”）;
$ players_team = mysql_result（$ resultn，0， “TID”）;
如果我将下面的打印声明放在下面，则页面会变为空白并且不会显示。如果print语句在while之前，则语句会显示，但页面上没有任何操作。最终结果是，在运行此页面时，应从自由代理中删除在上一页上选择的播放器，添加到用户的团队，并在首页上发布一个故事，宣布它。显然这些都不会发生在这里。