我正在尝试从while循环中获取特定数据并循环x次。
我正在选择此数据：
$r=mysql_query("SELECT ac6, ac5, ac4, ac3, ac2, ac1, ac0 FROM advertisements WHERE token = '".$_GET['token']."'");
while ($adData = mysql_fetch_array($r, MYSQL_NUM))
{
$data = $adData;
$ac0 = $data['ac0'];
$ac1 = $data['ac0'];
print $ac0;
print $ac1;
}
这行不通。什么都不会打印出来。
我想做的是将该特定广告（其中令牌）的 ac6 值获取到 ac0 值。我该怎么做？
将数字提取更改为关联提取，然后添加 foreach 循环来处理结果。
$r = mysql_query("SELECT ac6, ac5, ac4, ac3, ac2, ac1, ac0
FROM advertisements WHERE token = '" . $_GET['token'] . "'");
while ($adData = mysql_fetch_assoc($r))
{
foreach ($adData as $key => $value)
{
$nubmer = (int)substr($key, 2);
print $value; // or whatever you actually want to do
}
}
我也希望你正在验证$_GET['token']，防止你的代码中可能存在的恶作剧。
您可以创建一个数组来添加结果查询中的值
第一个是创建一个数组：
$advert_AC0 = array();
$advert_AC1 = array();
$advert_AC2 = array();
$advert_AC3 = array();
$advert_AC4 = array();
$advert_AC5 = array();
$advert_AC6 = array();
现在，向数组添加内容
$r = mysql_query("SELECT ac6, ac5, ac4, ac3, ac2, ac1, ac0
FROM advertisements WHERE token = '" . $_GET['token'] . "'");
if(mysql_num_rows($r)){ //check 1st if there is num of rows from the result
while ($adData = mysql_fetch_assoc($r))
{
array_push($advert_AC0, $dData['ac0']);
array_push($advert_AC1, $dData['ac1']);
array_push($advert_AC2, $dData['ac2']);
array_push($advert_AC3, $dData['ac3']);
array_push($advert_AC4, $dData['ac4']);
array_push($advert_AC5, $dData['ac5']);
array_push($advert_AC6, $dData['ac6']);
}
}else{
echo "NO RESULT.";
}
调用数组值，1 x 1
$count_array = count($advert_AC0);
$i = $count_array;
while(1 <= $i){
echo "AC0: $advert_AC0[$i]<br>";
echo "AC1: $advert_AC1[$i]<br>";
echo "AC2: $advert_AC2[$i]<br>";
echo "AC3: $advert_AC3[$i]<br>";
echo "AC4: $advert_AC4[$i]<br>";
echo "AC5: $advert_AC5[$i]<br>";
echo "AC6: $advert_AC6[$i]<br>";
$i++;
}
我不知道我的回答是否解决了你的问题，如果没有，请发表评论。