我正在运行基于文本的游戏并尝试使用while循环来重复自身，但是当条件满足时它就不会停止。
<?php
/****************************************************************/
/*********************** Created By Seker ***********************/
/**** Feel free to modify in any way, but keep this section. ****/
/****************************************************************/
session_start();
require "global_func.php";
if ($_SESSION['loggedin'] == 0)
{
header("Location: login.php");
exit;
}
$userid = $_SESSION['userid'];
require "header.php";
$h = new headers;
$h->startheaders();
include "mysql.php";
global $c;
$is =
mysql_query(
"SELECT u.*,us.* FROM users u LEFT JOIN userstats us ON u.userid=us.userid WHERE u.userid=$userid",
$c) or die(mysql_error());
$ir = mysql_fetch_array($is);
check_level();
$fm = money_formatter($ir['money']);
$cm = money_formatter($ir['crystals'], '');
$lv = date('F j, Y, g:i a', $ir['laston']);
$h->userdata($ir, $lv, $fm, $cm);
$h->menuarea();
switch ($_GET['action'])
{
case 'walk':
walk();
break;
case 'walk2':
walk();
break;
default:
home();
break;
}
function home()
{
global $ir,$h,$c,$userid;
$q=mysql_query("SELECT u.*,c.* FROM users u LEFT JOIN cities c ON u.location=c.cityid WHERE u.userid=$userid");
$r=mysql_fetch_array($q);
$city = $r['cityname'];
$trav = $ir['steps'];
echo "
<table width='70%' border='1'>
<tr>
<td align='center'>
<font size='3'><b><u>The $city Streets</u></b></font>
</td>
</tr>
<tr>
<td align='center'>
Take your chances with a walk through the $city streets!
</td>
</tr>
<tr>
<td align='center'>
Each day, you get <b>10</b> steps! <b>25</b> if you are a donator!
</td>
</tr>
<tr>
<td align='center'>
While traveling, you can find crystals, cash, or even gain experience!
</td>
</tr>
<tr>
<td align='center'>
But, be careful! There are dangers in the streets!
</td>
</tr>
</table>
";
echo "
<table width='70%' border='1'>
<tr>
<td align='center' colspan='2'>
<font size='3'><b><u>What would you like to do?</u></b></font>
</td>
</tr>
<tr>
<td align='center' colspan='2'>
You can travel <b>{$trav}</b> more times today!
</td>
</tr>
<td align='center' width='50%'>
<a href='streets.php?action=walk'>[Go For A Walk]</a>
</td>
<td align='center' width='50%'>
<a href='index.php'>[Change Your Mind]</a>
</td>
</tr>
</table>
";
}
function walk()
{
do
{
global $ir,$h,$c,$userid;
$q=mysql_query("SELECT u.*,c.* FROM users u LEFT JOIN cities c ON u.location=c.cityid WHERE u.userid=$userid");
$r=mysql_fetch_array($q);
$chance = mt_rand(1,100);
$city = $r['cityname'];
$trav = $ir['steps'];
if ($ir['steps'] <= 0)
{
echo "
You have traveled enough for today! Come back tomorrow!
<a href='index.php'>Home</a>";
exit($h->endpage());
}
if ($ir['hospital'])
{
echo "
You cannot travel while in the hospital!
<a href='index.php'>Home</a>";
exit($h->endpage());
}
if ($ir['jail'])
{
echo "
You cannot travel while in jail!
<a href='index.php'>Home</a>";
exit($h->endpage());
}
echo "
<table width=70% border='1'>
<tr>
<td align='center' width='50%'>
<font size='2'>You start your journey through the $city streets!</font>
</td>
<td align='center' width='50%'>
<font size='2'>You can travel up to <b>{$trav}</b> more times today!</font>
</td>
</tr>
<tr>";
if ($chance <= 10)
{
$rewardtok = mt_rand(5,15);
mysql_query("UPDATE users SET crystals=crystals+$rewardtok,steps=steps-1 WHERE userid=$userid");
echo "
<td align='center' colspan='2'>
Congratulations! You found <b>$rewardtok</b> crystals while walking through the streets!
</td>
</tr>
<tr>
<td align='center' width='50%'>
<a href='streets.php?action=walk'><b>[Continue Traveling]</b></a>
</td>
<td align='center' width='50%'>
<a href='streets.php'><b>[Back]</b></a>
</td>
</tr>
</table>";
}
if (($chance >= 15) && ($chance <= 30))
{
$rewardg = mt_rand(100,5000);
$reward = money_formatter($rewardg);
mysql_query("UPDATE users SET money=money+$rewardg,steps=steps-1 WHERE userid=$userid");
echo "
<td align='center' colspan='2'>
Congratulations! You found <b>$reward</b> while walking through the streets!
</td>
</tr>
<tr>
<td align='center' width='50%'>
<a href='streets.php?action=walk'><b>[Continue Traveling]</b></a>
</td>
<td align='center' width='50%'>
<a href='streets.php'><b>[Back]</b></a>
</td>
</tr>
</table>";
}
if (($chance >= 40) && ($chance <= 50))
{
$rewardexp = mt_rand(5,50) * ($ir['level'] /2);
mysql_query("UPDATE users SET exp=exp+$rewardexp,steps=steps-1 WHERE userid=$userid");
echo "
<td align='center' colspan='2'>
Congratulations! You gained <b>$rewardexp<b> experience while walking through the streets!
</td>
</tr>
<tr>
<td align='center' width='50%'>
<a href='streets.php?action=walk'><b>[Continue Traveling]</b></a>
</td>
<td align='center' width='50%'>
<a href='streets.php'><b>[Back]</b></a>
</td>
</tr>
</table>";
}
if (($chance >= 55) && ($chance <= 65))
{
$rewardexp = mt_rand(5,50);
mysql_query("UPDATE users SET exp=exp+$rewardexp,steps=steps-1 WHERE userid=$userid");
echo "
<td align='center' colspan='2'>
Congratulations! You gained <b>$rewardexp<b> experience while walking through the streets!
</td>
</tr>
<tr>
<td align='center' width='50%'>
<a href='streets.php?action=walk'><b>[Continue Traveling]</b></a>
</td>
<td align='center' width='50%'>
<a href='streets.php'><b>[Back]</b></a>
</td>
</tr>
</table>";
}
if (($chance >= 75) && ($chance <= 85))
{
$rewardtok = mt_rand(5,15);
mysql_query("UPDATE users SET crystals=crystals+$rewardtok,steps=steps-1 WHERE userid=$userid");
echo "
<td align='center' colspan='2'>
Congratulations! You found <b>$rewardtok</b> crystals while walking through the streets!
</td>
</tr>
<tr>
<td align='center' width='50%'>
<a href='streets.php?action=walk'><b>[Continue Traveling]</b></a>
</td>
<td align='center' width='50%'>
<a href='streets.php'><b>[Back]</b></a>
</td>
</tr>
</table>";
}
if ((($chance > 10) && ($chance < 15)) || (($chance > 30) && ($chance < 40)) || (($chance > 50) && ($chance < 55)) || (($chance > 65) && ($chance < 75)) || ($chance > 85))
{
$rewardtok = mt_rand(5,15);
mysql_query("UPDATE users SET steps=steps-1 WHERE userid=$userid");
echo "
<td align='center' colspan='2'>
You found nothing while walking through the streets
</td>
</tr>
<tr>
<td align='center' width='50%'>
<a href='streets.php?action=walk'><b>[Continue Traveling]</b></a>
</td>
<td align='center' width='50%'>
<a href='streets.php'><b>[Back]</b></a>
</td>
</tr>
</table>";
}
}
while ($ir['steps'] > 0);
}
$h->endpage();
该函数应该运行，直到步骤值为0，当函数从总计中减去时运行。然而当它达到0并且我得到类似这样的东西时它不会停止“步骤：-15535”
我相信这是“重温代码”
function walk()
{
do
{
global $ir,$h,$c,$userid;
$q=mysql_query("SELECT u.*,c.* FROM users u LEFT JOIN cities c ON u.location=c.cityid WHERE u.userid=$userid");
$r=mysql_fetch_array($q);
$chance = mt_rand(1,100);
$city = $r['cityname'];
$trav = $ir['steps'];
if ($ir['steps'] <= 0)
{
echo "
You have traveled enough for today! Come back tomorrow!
<a href='index.php'>Home</a>";
exit($h->endpage());
}
if ($ir['hospital'])
{
echo "
You cannot travel while in the hospital!
<a href='index.php'>Home</a>";
exit($h->endpage());
}
if ($ir['jail'])
{
echo "
You cannot travel while in jail!
<a href='index.php'>Home</a>";
exit($h->endpage());
}
echo "
<table width=70% border='1'>
<tr>
<td align='center' width='50%'>
<font size='2'>You start your journey through the $city streets!</font>
</td>
<td align='center' width='50%'>
<font size='2'>You can travel up to <b>{$trav}</b> more times today!</font>
</td>
</tr>
<tr>";
if ($chance <= 10)
{
$rewardtok = mt_rand(5,15);
mysql_query("UPDATE users SET crystals=crystals+$rewardtok,steps=steps-1 WHERE userid=$userid");
echo "
<td align='center' colspan='2'>
Congratulations! You found <b>$rewardtok</b> crystals while walking through the streets!
</td>
</tr>
<tr>
<td align='center' width='50%'>
<a href='streets.php?action=walk'><b>[Continue Traveling]</b></a>
</td>
<td align='center' width='50%'>
<a href='streets.php'><b>[Back]</b></a>
</td>
</tr>
</table>";
}
if (($chance >= 15) && ($chance <= 30))
{
$rewardg = mt_rand(100,5000);
$reward = money_formatter($rewardg);
mysql_query("UPDATE users SET money=money+$rewardg,steps=steps-1 WHERE userid=$userid");
echo "
<td align='center' colspan='2'>
Congratulations! You found <b>$reward</b> while walking through the streets!
</td>
</tr>
<tr>
<td align='center' width='50%'>
<a href='streets.php?action=walk'><b>[Continue Traveling]</b></a>
</td>
<td align='center' width='50%'>
<a href='streets.php'><b>[Back]</b></a>
</td>
</tr>
</table>";
}
if (($chance >= 40) && ($chance <= 50))
{
$rewardexp = mt_rand(5,50) * ($ir['level'] /2);
mysql_query("UPDATE users SET exp=exp+$rewardexp,steps=steps-1 WHERE userid=$userid");
echo "
<td align='center' colspan='2'>
Congratulations! You gained <b>$rewardexp<b> experience while walking through the streets!
</td>
</tr>
<tr>
<td align='center' width='50%'>
<a href='streets.php?action=walk'><b>[Continue Traveling]</b></a>
</td>
<td align='center' width='50%'>
<a href='streets.php'><b>[Back]</b></a>
</td>
</tr>
</table>";
}
if (($chance >= 55) && ($chance <= 65))
{
$rewardexp = mt_rand(5,50);
mysql_query("UPDATE users SET exp=exp+$rewardexp,steps=steps-1 WHERE userid=$userid");
echo "
<td align='center' colspan='2'>
Congratulations! You gained <b>$rewardexp<b> experience while walking through the streets!
</td>
</tr>
<tr>
<td align='center' width='50%'>
<a href='streets.php?action=walk'><b>[Continue Traveling]</b></a>
</td>
<td align='center' width='50%'>
<a href='streets.php'><b>[Back]</b></a>
</td>
</tr>
</table>";
}
if (($chance >= 75) && ($chance <= 85))
{
$rewardtok = mt_rand(5,15);
mysql_query("UPDATE users SET crystals=crystals+$rewardtok,steps=steps-1 WHERE userid=$userid");
echo "
<td align='center' colspan='2'>
Congratulations! You found <b>$rewardtok</b> crystals while walking through the streets!
</td>
</tr>
<tr>
<td align='center' width='50%'>
<a href='streets.php?action=walk'><b>[Continue Traveling]</b></a>
</td>
<td align='center' width='50%'>
<a href='streets.php'><b>[Back]</b></a>
</td>
</tr>
</table>";
}
if ((($chance > 10) && ($chance < 15)) || (($chance > 30) && ($chance < 40)) || (($chance > 50) && ($chance < 55)) || (($chance > 65) && ($chance < 75)) || ($chance > 85))
{
$rewardtok = mt_rand(5,15);
mysql_query("UPDATE users SET steps=steps-1 WHERE userid=$userid");
echo "
<td align='center' colspan='2'>
You found nothing while walking through the streets
</td>
</tr>
<tr>
<td align='center' width='50%'>
<a href='streets.php?action=walk'><b>[Continue Traveling]</b></a>
</td>
<td align='center' width='50%'>
<a href='streets.php'><b>[Back]</b></a>
</td>
</tr>
</table>";
}
}
while ($ir['steps'] > 0);
}
$h->endpage();
答案 0 :(得分：2)
$ir['steps']
不会在任何地方更改/减少。
在循环结束之前减少它：
$ir['steps'] -= 1;
在循环的结束括号之前。