为值添加前缀以建立链接

Question

我正在从数据库返回一个跟踪号，并希望将其设为可点击的链接。

<td><?php echo $row['tracking_number']; ?></td>

前缀是“ http://wwwapps.ups.com/WebTracking/track?track=yes&trackNums= ”

http://wwwapps.ups.com/WebTracking/track?track=yes&trackNums=TRACKINGNUMBER

Answer 1

在此要求的下方使用echo "http://wwwapps.ups.com/WebTracking/track?track=yes&trackNums="     . $row['tracking_number'];

Answer 2

$link='http://wwwapps.ups.com/WebTracking/track?track=yes&trackNums='$link.=$row['tracking_number'];

Answer 3

<td>&nbsp; &nbsp; <?php&nbsp; &nbsp; &nbsp; &nbsp; $link_href = 'http://wwwapps.ups.com/WebTracking/track?'&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; . http_build_query(['track' => 'yes', 'trackNums' => $$row['tracking_number']]);&nbsp; &nbsp; &nbsp; &nbsp; echo '<a href="' . $link_href . '">' . $row['tracking_number'] . '</a>';&nbsp;&nbsp; &nbsp; ?></td>如果$row['tracking_number']是字符串，则不需要进一步更改，但如果是跟踪号数组，则$tracking_numbers = implode(',', $row['tracking_number']);可以插入并$tracking_numbers替换$row['tracking_number']);.