请你们帮我在我的代码的语法加入多个表在MySQL
<?php
$detail = mysql_query("SELECT O.geoLocation, O.vehicleId, O.date, OL.oCodeDescription, V.vMake, V.vModel, V.colour
FROM offense O, offenselist OL, vehicle V
WHERE OL.oCode = O.offenseListId AND O.offenderNatId = '$id' AND V.vehicleReg = O.vehicleId");
while($db_field = mysql_fetch_assoc($detail)){
$geo = $db_field['O.geoLocation'];
$vid = $db_field['O.vehicleId'];
$date = $db_field['O.date'];
$offense = $db_field['OL.oCodeDescription'];
$make = $db_field['V.vMake'];
$model = $db_field['V.vModel'];
$colour = $db_field['V.colour'];
echo" <tr><td>Date:</td><td>$date</td></tr>
<tr><td>Offense</td><td>$offense</td></tr>
<tr><td>Scene Location:</td><td>$geo</td></tr>
<tr><td>Vehicle Registration No.:</td><td>$vid</td></tr>
<tr><td>Vehicle Description:</td><td>$colour $make $model</td></tr>
<tr><td colspan='2'> </td></tr>
<tr><td colspan='2'> </td></tr>";
}
?>
其返回等这个错误之一:
未定义指数:O.geoLocation在C:\ WAMP \ WWW \ eroad \ view.php上线142
我想你只需要输入'$ db_field [ '地理位置'];'而不是'$ db_field [ 'O.geoLocation'];' – ckpepper02 2013-04-23 20:23:15
var_dump($ db_field)为了查看数组中的行 – 2013-04-23 20:24:15
除非你有很好的理由,否则不要在新的应用程序中使用mysql_query。此接口已被弃用,非常危险,并且在将来的PHP版本中将被完全删除。 [学习PDO](http://net.tutsplus.com/tutorials/php/why-you-should-be-using-phps-pdo-for-database-access/)只需要半小时,并会让你的应用程序如果使用正确的话,将来会更安全并且更安全。 – tadman 2013-04-23 20:34:47