我有一个网页，我正在工作，链接是:
http://nexusdesign.org.uk/irejobs/training-courses.html其代码如下。现在在后端，我已经为培训课程创建了条目，如所示，但这些没有显示，从我所能看到的，这些应该从数据库db_training中拉到这里和下面的单独功能框，
谁能告诉我这里出了什么问题? <?php
ob_start();
require_once("conn.php");
$pagename = "training";
$submenu = "trainings";
require_once("header.php");
require_once("pager.php");
$__table = "db_trainings";
$__page = $_SERVER['PHP_SELF'];
$__id = "TrainingID";
$__uploadfolder = "myimages/";
$NUM_COL = 2;
$NUM_ROW = 5;
$perPage = $NUM_COL * $NUM_ROW;
$page=isset($_GET['page']) ? intval($_GET['page']):1;
$MemberID = $_GET['MemberID'];
if($MemberID != "")
$andmember = " and MemberID = '".$MemberID."'";
$category = "";
$i = 0;
$r1 = mysql_query("select * from db_training_categories") or die(mysql_error());
while($a1 = mysql_fetch_array($r1))
{
if($_GET['category-'.$a1['CatID']] == "1")
{
if($i != 0)
$andcategory .= " or ";
$andcategory .= " t.category = ".$a1['CatID'];
$i++;
}
}
if($andcategory != "")
$andcategory = " and (".$andcategory.")";
$city = $_GET['city'];
if($city == "enter city")
$city = $_GET['citys'];
if($city != "" and $city != "enter city")
$andcity = " and t.city = '".$city."'";
$country = $_GET['country'];
if($country != "")
$andcountry = " and t.country = '".$country."'";
$stxt = $_GET['srchTxt'];
if($stxt == "enter keywords")
$stxt = $_GET['srchTxts'];
if($stxt != "" and $stxt != "enter keywords")
{
$srchTxt = " and (t.title like '".$stxt."%' or t.title like '%".$stxt."' or t.title like '%".$stxt."%'";
$srchTxt .= " or t.provider like '".$stxt."%' or t.provider like '%".$stxt."' or t.provider like '%".$stxt."%'";
$srchTxt .= " or t.city like '".$stxt."%' or t.city like '%".$stxt."' or t.city like '%".$stxt."%'";
$srchTxt .= " or t.terms like '".$terms."%' or t.city like '%".$stxt."' or t.terms like '%".$stxt."%'";
$srchTxt .= " or t.price like '".$stxt."%' or t.price like '%".$stxt."' or t.price like '%".$stxt."%'";
$srchTxt .= " or t.duration like '".$stxt."%' or t.duration like '%".$stxt."' or t.duration like '%".$stxt."%'";
$srchTxt .= " or t.qualification like '".$stxt."%' or t.qualification like '%".$stxt."' or t.qualification like '%".$stxt."%'";
$srchTxt .= " or t.awardingbody like '".$stxt."%' or t.awardingbody like '%".$stxt."' or t.awardingbody like '%".$stxt."%'";
$srchTxt .= " or t.description like '".$stxt."%' or t.description like '%".$stxt."' or t.description like '%".$stxt."%'";
$srchTxt .= " )";
}
if ($_GET['sortby'] == "newest") {
$sortby = "newest";
$sortbyt = " order by t.TrainingID desc";
}
elseif ($_GET['sortby'] == "oldest") {
$sortby = "oldest";
$sortbyt = " order by t.TrainingID asc";
}
else
$sortbyt = " order by t.TrainingID desc";
$textQuery = "select *,t.city,t.country from db_trainings t, db_members m where t.MemberID <> '' and t.MemberID = m.MemberID and m.advertisementexpiry > 0 and t.active = 'yes' ". $andmember . $andcountry . $andcity . $andcategory . $andmember . $srchTxt . $sortbyt;
//for paging
$ress = mysql_query($textQuery);
$total=mysql_num_rows($ress);
$maxpage = floor($total/$perPage);
if($total%$perPage !=0)
$maxpage += 1;
if($page == 0)
{
$start = 0;
$page = 1;
}
else
$start = ($perPage * $page) - $perPage;
$stop = $start + $perPage;
$qry = $textQuery." limit $start, $perPage";
//echo $qry;
$r = mysql_query($qry);
?>
<script language="javascript">
function showRecords(id)
{
document.frmItems.page.value = id;
document.frmItems.method = "get";
document.frmItems.action = "training-courses.html";
document.frmItems.submit();
}
function validateForm()
{
document.frm.action = "training-courses.html";
document.frm.submit();
}
</script>
<div id="container">
<div class="wrap">
<div class="corner-box-bot">
<?
if($_SESSION['MemberType'] == 'Employer')
include("employer-menu.html");
elseif($_SESSION['MemberType'] == 'Seeking')
include("seeker-menu.html");
elseif($_SESSION['MemberType'] == 'Training')
include("training-menu.html");
?>
<div class="content">
<div style="float:left;width:280px;"><h1>Training & Skills</h1>
<strong class="blue" style="line-height: 31px; font-size: 14px;">
Upgrade
your skills and qualifications?<br />
Find out what's available near you:
<br /><br />
</strong></div>
<div style="float:right;width:550px;">
<p><strong>Training providers: </strong>use www.PaediatricNursingJobs.com to effectively promote your courses to students in the UK & internationally .</p>
<strong>Reach out and speak to a global market of clients and students</strong>
<?
if($_SESSION['MemberID'] == "")
echo "<a href='login-training.html' class='blue-btn-04' style='font-size:13px;margin-top:20px;'>ADVERTISE YOUR COURSES HERE</a>";
else
echo "<a href='training-courses-add.html' class='blue-btn-04' style='font-size:13px;margin-top:20px;'>ADVERTISE YOUR COURSES HERE</a>";
?>
</div>
<div class="clear"></div>
<form name="frmItems" id="frmItems">
<input type="hidden" name="page" value="">
<input type="hidden" name="MemberID" value="<?=$MemberID?>">
<input type="hidden" name="srchTxts" value="<?=$stxt?>">
<div class="side_bar">
<h1 style="line-height:1;">Advanced Search</h1>
<h2 class="blue">Course Location</h2>
<div class="custom-select-2" id="select-box-01">
<select name="country">
<option value="">select country</option>
<?
$r2 = mysql_query("select * from db_countries order by Name = 'United Kingdom' desc, Name") or die(mysql_error());
while($a2 = mysql_fetch_array($r2))
{
if($a2['CountryID'] == $country)
echo "<option value='".$a2['CountryID']."' selected>".$a2['Name']."</option>";
else
echo "<option value='".$a2['CountryID']."'>".$a2['Name']."</option>";
}
?>
</select>
</div>
<div class="custom-select-2" id="select-box-02">
<input type='text' name='city' class='txt-field-2' value='enter city' />
</div>
<div class="clear"></div>
<div style="border-top: 1px solid #d4d4d4; padding-top: 20px; margin-top: 10px;">
<h2 class="blue">Course Subject</h2>
<div class="custom-select-2" id="select-box-04">
<?
$r1 = mysql_query("select * from db_training_categories order by CatName") or die(mysql_error());
while($a1 = mysql_fetch_array($r1))
{
if($_GET['category-'.$a1['CatID']] == "1")
echo "<input type='checkbox' name='category-".$a1['CatID']."' value='1' checked /> ".$a1['CatName']."<br />";
else
echo "<input type='checkbox' name='category-".$a1['CatID']."' value='1' /> ".$a1['CatName']."<br />";
}
?>
</div>
</div>
<div style="border-top: 1px solid #d4d4d4; padding-top: 20px; margin-top: 20px;">
<a href="javascript:void(0);" class="blue-btn-06" onClick="showRecords(1);">Search for course</a>
</div>
</div>
<div class="col_710 r-content">
<?
if(mysql_num_rows($r) > 0)
{
$query = $_SERVER['QUERY_STRING'];
$arr = explode('&', $query);
if(strchr($arr[count($arr)-1],'page')!='')
array_pop($arr);
$purl = 'training-courses.html?'.implode('&', $arr);
?>
<div class="search-box">
<div>
<label>Training Title (e.g. Nurse)</label>
<input type="text" class="txt-field" name="srchTxt" />
</div>
<div>
<label>Training Location (e.g. Bristol)</label>
<input type="text" class="txt-field" name="citys" value="<?=$city?>" />
</div>
<a href="javascript:void(0);" class="blue-btn-02" onClick="showRecords(1);">Search</a>
<div class="clear"></div>
</div>
<div class="clear"></div>
<div class="sort-bar">
<span style="float: left; display: block; padding-top: 4px; width: 420px;"><strong class="blue"><?=$total?> courses found</strong></span>
<span style="float: left; display: block; padding-top: 4px;">Sort by</span>
<div class="custom-select-2" id="select-box-05">
<select name="sortby" id="sortby" class="input" onChange="showRecords(1);">
<option value="newest" <? if($_GET['sortby']=='newest') echo "selected"; ?>>Newest</option>
<option value="oldest" <? if($_GET['sortby']=='oldest') echo "selected"; ?>>Oldest</option>
</select>
</div>
<div class="clear"></div>
</div>
<div style="padding: 25px 0 0 25px;">
<?
$i=0;
while($a = mysql_fetch_array($r))
{
$r1 = mysql_query("select * from db_members where MemberID = '".$a['MemberID']."'") or die(mysql_error());
$a1 = mysql_fetch_array($r1);
$r2 = mysql_query("select * from db_categories where CatID = '".$a['category']."'") or die(mysql_error());
$a2 = mysql_fetch_array($r2);
$r3 = mysql_query("select * from db_countries where CountryID = '".$a['country']."'") or die(mysql_error());
$a3 = mysql_fetch_array($r3);
$r4 = mysql_query("select * from db_training_categories where CatID = '".$a['category']."'") or die(mysql_error());
$a4 = mysql_fetch_array($r4);
echo "
<div class='block-result'>
<img alt='' src='".$__uploadfolder.$a['logo']."' width='134' />
<div class='desc'>
<a href='training-courses-view.html?TrainingID=".$a['TrainingID']."'> ".cleaninput($a['title'],"ss|he|tr")."</a>
<span class='blue'>Location:</span> ".cleaninput($a['city'].", ".$a3['Name'],"ss|he|tr")."<br/>
<span class='blue'>Sector:</span> ".cleaninput($a4['CatName'],"ss|he|tr")."<br/>
<span class='blue'>Price:</span> ".$currency.cleaninput($a['price'],"ss|he|tr")."<br/>
<span class='blue'>Duration:</span> ".cleaninput($a['duration'],"ss|he|tr")." hours<br/>
</div>
</div>
";
$i++;
}
?>
</div>
<?
if($maxpage > 1)
echo showpage($page,$purl,$total,$maxpage,$perPage);
}
else
echo "
<div class='sort-bar' style='margin-top: 0px'>
<span style='float: left; display: block; padding-top: 4px; width: 420px;'><strong class='blue'>No results found...</strong></span>
<div class='clear'></div>
</div>
";
?>
</div>
</form>
<div class="clear"></div>
</div>
</div>
<? include("bottom-featuredcourses.php"); ?>
<div class="clear"></div>
</div>
</div>
<?php
require_once("footer.php");
ob_flush();
?>
从上面的评论:
all of the members tables show advertisementexpiry at 0
您的查询尝试匹配任何与advertisementexpiry> 0的内容。这意味着查询将永远不会匹配任何行，因为没有一个大于0。
你需要分解这个位t.MemberID <> '' and t.MemberID = m.MemberID and m.advertisementexpiry > 0 and t.active = 'yes'
测试每一部分调试
t.MemberID <> ''
看起来不需要，因为我假设每个成员都有一个id。