我有一个站点,其中包含存储在 mySQL 数据库中的 300 篇文章,URL 格式为 www.site.com/article1.html。
大多数无效 URL 成功重定向到主站点。例如,www.site.com/article301 重定向到 www.site.com,这正是我想要的。
但是 www.site.com/article301.html 不会重定向到任何地方。相反,它会在页面顶部加载一个空白文章模板和以下错误:
Warning: mysql_num_rows(): supplied argument is not a valid MySQL result resource in /home//public_html/site.com/functions.php on line 26
第 26 行及以下读取
if(mysql_num_rows($result)>0) {
$row=mysql_fetch_array($result);
if(ENABLE_REWRITE == 1) $path=' » <a href="'.DOC_ROOT.'/'.$row['nameurl'].'/page_1/">'.$row['name'].'</a>'.$path;
if(ENABLE_REWRITE == 0) $path=' » <a href="index.php?page=1&category='.$id.'">'.$row['name'].'</a>'.$path;
if($row['parent']==0) $f=1;
else $id=$row['parent'];
} else {
return ' - ';
}
}
return $path;
}
任何想法如何解决这一问题?
这是 King Skippus 要求的完整代码
<?php
/*function get_folders_path($id) {
$f=0;
$path='';
while($f==0)
{
$result=mysql_query("SELECT name, parent FROM categories WHERE id=$id");
if(mysql_num_rows($result)>0) {
$row=mysql_fetch_array($result);
$path=' » '.$row['name'].$path;
if($row['parent']==0) $f=1;
else $id=$row['parent'];
} else {
return ' - ';
}
}
return $path;
}*/
function get_folders_path($id) {
$f=0;
$path='';
while($f==0)
{
$result=mysql_query("SELECT * FROM categories WHERE id=$id");
if($result !== FALSE && mysql_num_rows($result)>0) {
$row=mysql_fetch_array($result);
if(ENABLE_REWRITE == 1) $path=' » <a href="'.DOC_ROOT.'/'.$row['nameurl'].'/page_1/">'.$row['name'].'</a>'.$path;
if(ENABLE_REWRITE == 0) $path=' » <a href="index.php?page=1&category='.$id.'">'.$row['name'].'</a>'.$path;
if($row['parent']==0) $f=1;
else $id=$row['parent'];
} else {
return ' - ';
}
}
return $path;
}
function get_categories_tree($id) {
static $categs = array ();
static $level=0;
$level++;
$result=mysql_query("SELECT * FROM categories WHERE parent=$id");
while($row=mysql_fetch_array($result)) {
$categs[$row['id']][0] = $row['id'];
$categs[$row['id']][1] = '/'.$row['nameurl'];
$categs[$row['id']][2] = str_repeat(' ', $level-1);
$categs[$row['id']][3] = $row['name'];
get_categories_tree($row['id']);
}
$level--;
return $categs;
}
function get_cats($id) {
$categs = array ();
$result=mysql_query("SELECT * FROM categories WHERE parent=$id");
while($row=mysql_fetch_array($result)) {
$categs[$row['id']][0] = $row['id'];
$categs[$row['id']][1] = '/'.$row['nameurl'];
// $categs[$row['id']][2] = str_repeat(' ', $level-1);
$categs[$row['id']][3] = $row['name'];
}
return $categs;
}
/*function login() {
if (!isset($_SERVER['PHP_AUTH_USER'])) {
header('WWW-Authenticate: Basic realm="My Realm"');
header('HTTP/1.0 401 Unauthorized');
return false;
} else {
$result=mysql_query("SELECT * FROM users WHERE login='{$_SERVER['PHP_AUTH_USER']}' AND password='{$_SERVER['PHP_AUTH_PW']}'");
if(mysql_num_rows($result)>0) return true;
else {
header('WWW-Authenticate: Basic realm="My Realm"');
header('HTTP/1.0 401 Unauthorized');
return false;
}
}
}*/
function login() {
if (!isset($_SESSION['AUTH_USER']) || !isset($_SESSION['AUTH_PASS'])) return false;
else {
$result=mysql_query("SELECT * FROM users WHERE login='{$_SESSION['AUTH_USER']}' AND password='{$_SESSION['AUTH_PASS']}'");
if(mysql_num_rows($result)>0) return true;
else return false;
}
}
function get_categories($id) {
static $categs = array ("0" => "[Top]");
static $level=0;
$level++;
$result=mysql_query("SELECT * FROM categories WHERE parent=$id");
while($row=mysql_fetch_array($result)) {
$categs[$row['id']] = str_repeat('| ', $level-1).'|___'.$row['name'];
get_categories($row['id']);
}
$level--;
return $categs;
}
function get_parent_name($id) {
if($id!=0) {
$result=mysql_query("SELECT name FROM categories WHERE id=$id");
if(mysql_num_rows($result)>0) {
$row=mysql_fetch_array($result);
return $row['name'];
}
else return '-';
}
else return 'Top';
}
function getcatname($id, $table)
{
$r=mysql_query("SELECT title FROM $table WHERE id='$id'");
if(mysql_num_rows($r)>0) {
$row=mysql_fetch_array($r);
return $row['title'];
}
else
return "-";
}
?>