我是用户，而不是开发人员，但必须负责。我在public_html / index.php中的代码如下：
<title>abcxyz</title>
<meta name="description" content="abcxyz>
<meta name="google-site-verification" content="h6tGrelLZ7k8OFzpXkJsOCDKxGChHoGs-y16DY8JuwQ" />
<meta name="google-site-verification" content="xgZkRTmPS-FeH494yBlk1MKYyXU4W5Gd8y0t2IE0daM" />
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1">
现在所有页面都具有相同的meta标签，我有2个产品页面，但是只有一个product.php，如何设置2个不同的meta标签？如有必要，如何找到page_id，标题...？
product.php
<section id="main">
<div class="wraper">
<div class="main">
<div class="row">
<div class="col-xs-24 col-sm-16 col-md-17 col-sm-push-8 col-md-push-7 col">
<div class="mainbody">
<div class="head">
<h3><?=$lang['menu']['sanpham']?></h3>
<div class="gach"></div>
</div>
<div class="content">
<?php
$tbl=new table('products');
if($_GET['id'])
$id=intval($_GET['id']);
$res = $tbl->loadOne(' id='.$id.' ' );
$row = mysql_fetch_object($res);
if($_SESSION['lang1']=='vi'){
$name=$row->name;
$details=$row->summary;
$link=convert($row->name);
}else{
$name=$row->name_en;
$details=$row->details;
$link=convert($row->name);
}
?>
<h1><?=$name?></h1>
<div class="detail"><?=$details?></div>
<div class="otherdetail">
<h3><?=$lang['menu']['cacsanphamkhac']?></h3>
<ul>
<?php
$tbl=new table('products');
$limit = 20;
$nume = 10;
$res = $tbl->loadPaging($start,$nume,$limit,'where id!='.intval($_GET['id']).' ','order by id desc' );
if(mysql_num_rows($res) ==0)
echo "<p style='text-align:center; color:red'>Empty!</p>";
else{
while ($row = mysql_fetch_object($res)) {
$id=$row->id;
if($_SESSION['lang1']=='vi')
$name=$row->name;
else
$name=$row->name_en;
$link=convert($name);
?>
<li><a href="<?=$root?>chi-tiet/<?=$id?>/<?=$link?>.html" ><?=$name?></a></li>
<?php }} ?>
</ul>
</div>
</div>
</div>
</div>
<div class="col-xs-24 col-sm-8 col-md-7 col-sm-pull-16 col-md-pull-17">
<?php include "source/left/left.php";?>
</div>
</div>
<div class="row">
<div class="col-md-24">
<?php include "source/public/footer_other.php";?>
</div>
</div>
</div>
</div>
<!-- Go to www.addthis.com/dashboard to customize your tools -->
<script type="text/javascript" src="//s7.addthis.com/js/300/addthis_widget.js#pubid=ra-5cfcbefe582d68b7"></script>
代码
<section id="main">
<div class="wraper">
<div class="main">
<div class="row">
<div class="col-xs-24 col-sm-16 col-md-17 col-sm-push-8 col-md-push-7 col">
<div class="mainbody">
<div class="head">
<h3><?=$lang['menu']['sanpham']?></h3>
<div class="gach"></div>
<div class="ms"><span class="sign_in"><?=$lang['menu']['mausac']?></span> <span class="sign_in">(click here)</span></div>
<div id="sign_box" style="display:none">
<div id="an"><img src="<?=$root?>images/close_color.png" width="24" height="24" /></div>
<?php
$tbl=new table('category2');
$res = $tbl->loadOne('1=1');
while($row = mysql_fetch_object($res)){
if($_SESSION['lang1']=='vi')
$name=$row->name;
else $name=$row->name_en;
?>
<div class="mau">
<div class="tenmau"><?=$name?></div>
<div class="imgmau"><img src="<?
$chuoi=$row->image;
if($chuoi1=substr($chuoi,0,7)=='http://')
echo $chuoi;
else {
if($chuoi=='')
echo $root."images/noimage.jpg";
else
echo $root."uploads".$chuoi;
}
?>" width="100" height="53" /></div>
</div>
<?php } ?>
</div>
</div>
<div class="content product row">
<?php
$tbl=new table('products');
if(isset($_GET["start"])){
$start = $_GET["start"];
}
if(!isset($start)) $start = 0; $limit = 12; $nume = 10; $pagename =$root."san-pham/"; $res = $tbl->loadPaging($start,$nume,$limit,'where 1=1 and block=0 ','order by id asc' );
if(mysql_num_rows($res) ==0)
echo "<p style='text-align:center'>Empty</p>";
else{
while ($row = mysql_fetch_object($res)) {
$id=$row->id;
if($_SESSION['lang1']=='vi'){
$name=$row->name;
$details=$row->summary;
$link=convert($row->name);
}else{
$name=$row->name_en;
$details=$row->details;
$link=convert($row->name);
}
?>
<div class="col-xs-24 col-sm-8 col-md-8">
<div class="item">
<div class="thumb">
<a href="<?=$root?>chi-tiet/<?=$id?>/<?=$link?>.html"><img src="<?
$chuoi=$row->image;
if($chuoi1=substr($chuoi,0,7)=='http://')
echo $chuoi;
else {
if($chuoi=='')
echo $root."images/noimage.jpg";
else
echo $root."uploads".$chuoi;
}
?>"/>
</a>
</div>
<h3><a href="<?=$root?>chi-tiet/<?=$id?>/<?=$link?>.html"><?=$name?></a></h3>
</div>
</div>
<?php } }?>
</div>
</div>
</div>
<div class="col-xs-24 col-sm-8 col-md-7 col-sm-pull-16 col-md-pull-17">
<?php include "source/left/left.php";?>
</div>
</div>
<div class="row">
<div class="col-md-24">
<?php include "source/public/footer_other.php";?>
</div>
</div>
</div>
</div>
<!-- Go to www.addthis.com/dashboard to customize your tools -->
<script type="text/javascript" src="//s7.addthis.com/js/300/addthis_widget.js#pubid=ra-5cfcbefe582d68b7"></script>
</section>