我正在尝试构建一个简单的PHP投票系统，其中一个网站用户被要求对他们最喜欢的照片进行投票。每天只允许一次投票。
当投票时，PHP脚本将:
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1——检查用户的IP地址，并将其与IP日志文本文件
进行比较2—如果在日志中找到用户的IP地址，它会检查最近一次投票(针对该IP地址)是否在当前日期提交
3——如果用户的IP地址被记录，最后一次投票是在当前日期，用户被重定向到提醒他们每天只允许一次投票的页面
4—如果用户的IP地址被记录，但最后一次投票是在当前日期之前，投票被记录，用户被重定向到感谢投票页面
5—如果用户的IP地址没有被记录，投票将被记录下来，用户将被重定向到感谢投票页面。
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不幸的是，我正在使用的PHP脚本将做两件事中的一件:
1——如果在If/else语句($logIP == $ipAddress)之后包含"break"，脚本将在日志
中添加两个投票和两个IP条目2—如果"break"被删除，则输入一票并记录一个IP地址。但是，无论记录的投票和IP如何，新选民和返回的投票都将被重定向到提醒他们同一用户每天只允许一次投票的页面
脚本:
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// GET USERS VOTE, IP ADDRESS AND TODAYS DATE
$userVote = $_REQUEST['vote'];
$ipAddress = $_SERVER["REMOTE_ADDR"];
$ipDate = date("Y/m/d");
// IF THE USERS VOTE IS NULL, REDIRECT TO ERROR PAGE
if ($userVote != "") {
$userFound = false;
$userVoted = false;
echo $userFound . " -- " . $userVoted . "<br /><br />";
$file_handle = fopen("ip_log.txt", "r");
// LOOP THROUGH FILE IP ADDRRESSES AND DATES THOSE ADDRESSES WHERE LOGGED
while (!feof($file_handle)) {
$line_of_text = fgets($file_handle);
$parts = explode('||', $line_of_text);
$logIP = $parts[0];
$logDate = $parts[1];
// CHECK IF THE LOGGED IP ADDRESS MATCHES THE USERS IP ADDRESS
if ($logIP == $ipAddress) {
$userFound = true;
// CHECK IF THE LOGGED VOTE DATE MATCHES == TODAY FOR THE CURRENT IP ADDRESS BEING CHECKED
if ($logDate == $ipDate) {
// IP ADDRESS FOUND AND LOGGED DATE == TODAY, RREDIRECT USER TO TRY AGAIN LATER PAGE
header("Location: http://www.fotohuis.ca/vote/tryagain.html");
exit;
}
else {
// IP ADDRESS FOUND BUT LOGGED DATE != TODAY, KEEP CHECKING UNTIL EOF
}
}
else {
// IP ADDRESS NOT FOUND, KEEP CHECKING UNTIL EOF
continue;
}
}
// USER FOUND
if ($userFound == true) {
// USER FOUND BUT THE LOGGED VOTE DATE != TODAY
if ($userVoted == false) {
// GET IP ADDRESS LOG CONTENT
$filename1 = "ip_log.txt";
$content1 = file($filename1);
// INSERT USER IP ADDRESS INTO LOG
$insertip = "'r'n" . $ipAddress . "||" . $ipDate;
$fp1 = fopen($filename1, "a");
fputs($fp1, $insertip);
fclose($fp1);
// GET POLL RESULT CONTENT
$filename2 = "poll_result.txt";
$content = file($filename2);
// PUT VOTE CONTENT INTO ARRAY
$array = explode("||", $content[0]);
$picOne = $array[0];
$picTwo = $array[1];
$picThree = $array[2];
$picFour = $array[3];
$picFive = $array[4];
$picSix = $array[5];
// CALCULATE VOTE TOTAL
if ($userVote == 0) {
$picOne = $picOne + 1;
}
if ($userVote == 1) {
$picTwo = $picTwo + 1;
}
if ($userVote == 2) {
$picThree = $picThree + 1;
}
if ($userVote == 3) {
$picFour = $picFour + 1;
}
if ($userVote == 4) {
$picFive = $picFive + 1;
}
if ($userVote == 5) {
$picSix = $picSix + 1;
}
// INSERT USER VOTE
$insertvote = $picOne . "||" . $picTwo . "||" . $picThree . "||" . $picFour . "||" . $picFive . "||" . $picSix;
$fp2 = fopen($filename2, "w");
fputs($fp2, $insertvote);
fclose($fp2);
// /REDIRECT USER TO THANK YOU FOR VOTING PAGE
header("Location: http://www.fotohuis.ca/vote/thankyou.html");
exit;
}
// USER FOUND AND THE LOGGED VOTE DATE == TODAY
else {
// USER ATTEMPTED TO VOTE 2+ TIMES IN THE SAME DAY, REDIRECT USER TO TRY AGAIN LATER PAGE
header("Location: http://www.fotohuis.ca/vote/tryagain.html");
exit;
}
}
// USER NOT FOUND
else {
// GET IP ADDRESS LOG CONTENT
$filename1 = "ip_log.txt";
$content1 = file($filename1);
// INSERT USER IP ADDRESS INTO LOG
$insertip = "'r'n" . $ipAddress . "||" . $ipDate;
$fp1 = fopen($filename1, "a");
fputs($fp1, $insertip);
fclose($fp1);
// GET POLL RESULT CONTENT
$filename2 = "poll_result.txt";
$content2 = file($filename2);
// PUT VOTE COUNT INTO ARRAY
$array = explode("||", $content2[0]);
$picOne = $array[0];
$picTwo = $array[1];
$picThree = $array[2];
$picFour = $array[3];
$picFive = $array[4];
$picSix = $array[5];
// CALCULATE VOTE TOTAL
if ($userVote == 0) {
$picOne = $picOne + 1;
}
if ($userVote == 1) {
$picTwo = $picTwo + 1;
}
if ($userVote == 2) {
$picThree = $picThree + 1;
}
if ($userVote == 3) {
$picFour = $picFour + 1;
}
if ($userVote == 4) {
$picFive = $picFive + 1;
}
if ($userVote == 5) {
$picSix = $picSix + 1;
}
// INSERT USER VOTE
$insertvote = $picOne . "||" . $picTwo . "||" . $picThree . "||" . $picFour . "||" . $picFive . "||" . $picSix;
$fp2 = fopen($filename2, "w");
fputs($fp2, $insertvote);
fclose($fp2);
// REDIRECT USER TO THANK YOU FOR VOTING PAGE
header("Location: http://www.fotohuis.ca/vote/thankyou.html");
exit;
}
fclose($file_handle);
}
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任何帮助都将非常感激，因为我已经做了一个星期了，没有任何进展:(
这段代码可以大大简化，以便在将来更容易理解和修改。还有一些不需要重复的代码。
这是未经测试的，但它应该工作，并给你一个如何继续前进的想法。
在您尝试之前，请确保测试它或备份您现有的投票计数!!
<?php
$userVote = $_REQUEST['vote'];
$ipAddress = $_SERVER["REMOTE_ADDR"];
$ipDate = date("Y/m/d");
$ipLogFile = 'ip_log.txt';
$resultLogFile = 'poll_result.txt';
//IF THE USERS VOTE IS NULL or out of range, REDIRECT TO ERROR PAGE
if (empty($userVote) || $userVote < 0 || $userVote > 5) {
header('Location: errorpage.html');
exit;
}
$file_handle = fopen($ipLogFile, "r");
//LOOP THROUGH FILE IP ADDRRESSES AND DATES THOSE ADDRESSES WHERE LOGGED
while (!feof($file_handle) )
{
$line_of_text = fgets($file_handle);
$parts = explode('||', $line_of_text);
$logIP = $parts[0];
$logDate = $parts[1];
if ($logIP == $ipAddress && $logDate == $ipDate) {
// IP ADDRESS FOUND AND LOGGED DATE == TODAY FOR CURRENT IP
header("Location: http://www.fotohuis.ca/vote/tryagain.html");
exit;
}
}
fclose($file_handle);
// user has not voted ever, or today
$insertip = "'r'n".$ipAddress."||".$ipDate;
file_put_contents($ipLogFile, $insertip, FILE_APPEND);
//GET POLL RESULT CONTENT
$fp = fopen($resultLogFile, 'r+'); // open for reading and writing
flock($fp, LOCK_EX); // lock file so it can't be changed
$content = fgets($fp); // read contents of file
//PUT VOTE CONTENT INTO ARRAY
$array = explode("||", $content);
// $array[0] = picOne; $array[1] = picTwo; etc
$array[$userVote] = (int)$array[$userVote] + 1;
ftruncate($fp); // truncate the file so it is empty
rewind($fp); // jump to beginning of file
$insertvote = implode('||', $array); // array to string 0||1||2||3||4||5
fwrite($fp, $insertvote); // write new vote tally
flock($fp, LOCK_UN); // unlock file
fclose($fp); // close file
///REDIRECT USER TO THANK YOU FOR VOTING PAGE
header("Location: http://www.fotohuis.ca/vote/thankyou.html");
exit;
希望有帮助!