来自MySQL的查询显示没有结果
问题描述:
我的数据库中有一列显示禁止的词。我想要做的是从我的数据库中回收坏词的列表,如果它们中的一些将被显示,则它们应该用以下代码替换它:-x来自MySQL的查询显示没有结果
我使$bwords
回忆起来自数据库和$pmsg
发布的结果,如果有坏词或不。问题是执行此代码后,我的消息没有得到显示。我哪里错了?
以下是摘录
// 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
,这里是完整的代码:
<?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=$totalpages'>>></a> ";
} // end if
/****** end build pagination links ******/
?>
答
您获取数据后
while ($list = mysql_fetch_assoc($result)) {
,而使用它
当它不前即使存在;无论是变量$列表
$pmsg = ($list['StringyChat_message'] == $bwords) ? ":-x" : $list['StringyChat_message'];
-
此外,$ bwords是一种资源,而不是一个数组或对象,在这里:
$bwords = mysql_query("SELECT word FROM StringyChat_WordBan");
+0
现在我有一个错误,说'解析错误:语法错误,意想不到的T_IF在/home/u506124311/public_html/ag/page.php 58行 – Nesquick 2014-08-29 12:40:38
[请不要使用'mysql_ * '功能](http://*.com/q/12859942/1190388)在新的代码。他们不再被维护,并[正式弃用](https://wiki.php.net/rfc/mysql_deprecation)。改为了解准备好的语句,然后使用[tag:PDO]或[tag:MySQLi]。 – hjpotter92 2014-08-29 10:35:51