Question

我的数据库中有一列显示禁止的单词。我想要做的是回忆一下我的数据库中的坏词列表，如果要显示其中的一些，他们应该用以下内容替换它：-x

我让$bwords从数据库中回忆信息，并$pmsg发布结果，如果结果不好的话。问题是在实现此代码后，我的消息根本没有显示。我哪里错了？

这是片段

    // the offset of the list, based on current page 
$offset = ($currentpage - 1) * $rowsperpage;

// get the info from the db 
$sql = "SELECT StringyChat_time, StringyChat_name, StringyChat_message FROM StringyChat LIMIT $offset, $rowsperpage";
$bwords = "SELECT word FROM StringyChat_WordBan";
$result = mysql_query($sql, $conn) or trigger_error("SQL", E_USER_ERROR);
$test = mysql_query($bwords, $conn) or trigger_error("SQL", E_USER_ERROR);

$pmsg = ($list['StringyChat_message'] == $bwords) ? ":-x" : $list['StringyChat_message'];

// while there are rows to be fetched...
while ($list = mysql_fetch_assoc($result, $test)) 
//while (($pmsg = $list['StringyChat_message'] == $bwords) ? ":-x" : $list['StringyChat_message'])
{
   // echo data
   //echo ($pmsg = ($list['StringyChat_message'] == $bwords) ? ":-x" : $list['StringyChat_message'])

   echo '<span style="color:#828282">' . '(' . date( 'D H:i:s', $list['StringyChat_time'] )  . ') ' . '</span>' . '<b>' . if($list['StringyChat_message'] == $test) ? ":-x" : $list['StringyChat_message'] . '</b>' . ' : ' . $pmsg . '<br />'
} 

// end while

这是完整的代码：

<?php

// database connection info
$conn = mysql_connect('...','...','...') or trigger_error("SQL", E_USER_ERROR);
$db = mysql_select_db('...',$conn) or trigger_error("SQL", E_USER_ERROR);

// find out how many rows are in the table 
$sql = "SELECT COUNT(*) FROM StringyChat";
$result = mysql_query($sql, $conn) or trigger_error("SQL", E_USER_ERROR);
$r = mysql_fetch_row($result);
$numrows = $r[0];

// number of rows to show per page
$rowsperpage = 5;
// find out total pages
$totalpages = ceil($numrows / $rowsperpage);

// get the current page or set a default
if (isset($_GET['currentpage']) && is_numeric($_GET['currentpage'])) {
   // cast var as int
   $currentpage = (int) $_GET['currentpage'];
} else {
   // default page num
   $currentpage = 1;
} // end if

// if current page is greater than total pages...
if ($currentpage > $totalpages) {
   // set current page to last page
   $currentpage = $totalpages;
} // end if
// if current page is less than first page...
if ($currentpage < 1) {
   // set current page to first page
   $currentpage = 1;
} // end if

// the offset of the list, based on current page 
$offset = ($currentpage - 1) * $rowsperpage;

// get the info from the db 
$sql = "SELECT StringyChat_time, StringyChat_name, StringyChat_message FROM StringyChat LIMIT $offset, $rowsperpage";
$bwords = "SELECT word FROM StringyChat_WordBan";
$result = mysql_query($sql, $conn) or trigger_error("SQL", E_USER_ERROR);
$test = mysql_query($bwords, $conn) or trigger_error("SQL", E_USER_ERROR);

$pmsg = ($list['StringyChat_message'] == $bwords) ? ":-x" : $list['StringyChat_message'];


// while there are rows to be fetched...
while ($list = mysql_fetch_assoc($result, $test)) 
//while (($pmsg = $list['StringyChat_message'] == $bwords) ? ":-x" : $list['StringyChat_message'])
 {
   // echo data
   //echo ($pmsg = ($list['StringyChat_message'] == $bwords) ? ":-x" : $list['StringyChat_message'])

   echo '<span style="color:#828282">' . '(' . date( 'D H:i:s', $list['StringyChat_time'] )  . ') ' . '</span>' . '<b>' . if($list['StringyChat_message'] == $test) ? ":-x" : $list['StringyChat_message'] . '</b>' . ' : ' . $pmsg . '<br />';
} 

// end while

/******  build the pagination links ******/
// range of num links to show
$range = 3;

// if not on page 1, don't show back links
if ($currentpage > 1) {
   // show << link to go back to page 1
   echo " <a href='{$_SERVER['PHP_SELF']}?currentpage=1'><<</a> ";
   // get previous page num
   $prevpage = $currentpage - 1;
   // show < link to go back to 1 page
   echo " <a href='{$_SERVER['PHP_SELF']}?currentpage=$prevpage'><</a> ";
} // end if 

// loop to show links to range of pages around current page
for ($x = ($currentpage - $range); $x < (($currentpage + $range) + 1); $x++) {
   // if it's a valid page number...
   if (($x > 0) && ($x <= $totalpages)) {
      // if we're on current page...
      if ($x == $currentpage) {
         // 'highlight' it but don't make a link
         echo " [<b>$x</b>] ";
      // if not current page...
      } else {
         // make it a link
         echo " <a href='{$_SERVER['PHP_SELF']}?currentpage=$x'>$x</a> ";
      } // end else
   } // end if 
} // end for

// if not on last page, show forward and last page links        
if ($currentpage != $totalpages) {
   // get next page
   $nextpage = $currentpage + 1;
    // echo forward link for next page 
   echo " <a href='{$_SERVER['PHP_SELF']}?currentpage=$nextpage'>></a> ";
   // echo forward link for lastpage
   echo " <a href='{$_SERVER['PHP_SELF']}?currentpage=$totalpages'>>></a> ";
} // end if
/****** end build pagination links ******/
?>

Answer 1

您稍后要提取数据

while ($list = mysql_fetch_assoc($result)) {

在使用它之前甚至不存在时;变量$ list

$pmsg = ($list['StringyChat_message'] == $bwords) ? ":-x" : $list['StringyChat_message'];

-

此外，$ bwords是资源，而不是数组或对象，在这里：

$bwords = mysql_query("SELECT word FROM StringyChat_WordBan");

来自MySQL的查询显示没有结果

1 个答案: