使用PHP / MySQL，我正在尝试在我们的网络中显示当前正在使用VLAN的数据库。我有3个段，每个段有总共40个VLAN。
细分市场是'dist''核心''nds'。 Dist有10个VLAN，核心有4个，nds有40个。
我设置它的方式，显示的是我的HTML表格中每列的4行。显示核心段的所有4个VLAN ID。
我需要帮助让每个HTML列显示所有与该段相关的VLAN
$dist = "SELECT * FROM `used_vlans` WHERE segments = 'dist'";
$core = "SELECT * FROM `used_vlans` WHERE segments = 'core'";
$nds = "SELECT * FROM `used_vlans` WHERE segments = 'nds'";
$result_d = mysqli_query($con,$dist);
$result_c = mysqli_query($con,$core);
$result_n = mysqli_query($con,$nds);
echo "<table>
<tr>
<th width='100' height='18'>DIST</th>
<th width='120' height='18'>CORE</th>
<th width='120' height='18'>NDS</th>
</tr>";
while (($row = mysqli_fetch_assoc($result_d)) && ($row2 = mysqli_fetch_assoc($result_c)) && ($row3 = mysqli_fetch_assoc($result_n)))
{
echo "<tr>";
echo "<td height='20'>" . $row['vlan_id'] . "</td>";
echo "<td height='20'>" . $row2['vlan_id'] . "</td>";
echo "<td height='20'>" . $row3['vlan_id'] . "</td>";
echo "</tr>";
}
mysqli_close($con);
echo "</table>";
mysql> show columns from used_vlans;
+----------+----------+------+-----+---------+-------+
| Field | Type | Null | Key | Default | Extra |
+----------+----------+------+-----+---------+-------+
| vlan_id | int(4) | YES | | NULL | |
| segments | tinytext | YES | | NULL | |
| descript | tinytext | YES | | NULL | |
+----------+----------+------+-----+---------+-------+
^^^ snapshot of the sql columns
+---------+----------+----------------------------------+
| vlan_id | segments | descript |
+---------+----------+----------------------------------+
| 1 | dist | default |
| 8 | dist | x.y.0.0/22-Srvr |
| 10 | dist | VLAN00w. |
| 11 | dist | VMware_ESX_Hosts_x.y.11.0/24 |
| 12 | dist | VMware_Prod_x.y.12.0/24 |
| 13 | dist | VMware_Non-Prod_x.y.13.0/24 |
| 20 | dist | x.y.5.0/24-Srvr_Prod |
| 21 | dist | SeaChange_Prod_x.y.21.0/24 |
| 22 | dist | SeaChange_Non-Prod_x.y.22.0/24 |
| 30 | dist | x.y.30.0/24-Srvr_Backup |
| 31 | dist | DEV_x.y.31.0/24 |
| 253 | core | icoms_csl_fw_x.y.253.x/24 |
| 392 | core | x.3.32.x/24 |
| 950 | core | CORE_VDC_vPC_peer_link_Native |
| 980 | core | InterCoreVDCRouting |
| 2 | nds | native_Dist5_to_Dist6_4Gb_EthCh |
| 4 | nds | native_Dist5_to_NX6_4Gb_EthCh |
| 17 | nds | RDC_Tools_x.y.17.0/24 |
| 18 | nds | Linux/Unix_Admin_x.y.18.0/24 |
| 19 | nds | NOC_ESX_Hosts-x.y.19.0/24 |
| 23 | nds | DMZ_x.17.1.0/24 |
| 33 | nds | CA_t.168.164.0/29 |
| 70 | nds | .63.70.0/24 |
| 71 | nds | .63.71.0/24 |
| 72 | nds | .63.72.0/24 |
| 73 | nds | .63.73.0/24 |
| 74 | nds | .63.74.0/24 |
| 75 | nds | .63.75.0/24 |
| 76 | nds | .63.76.0/24 |
| 77 | nds | .63.77.0/24 |
| 94 | nds | x.0.14.65/27 |
| 96 | nds | Telcordia_x.y.14.t.28 |
| 122 | nds | Abuse_x.y.14.248/29 |
| 130 | nds | Polaris_x.y.14.16/28 |
| 140 | nds | Disa_t.168.174.0/29 |
| 144 | nds | TSD_Sh_Oracle_RK_t.168.144.x |
| 145 | nds | Unified_Poller_Prod_DB_t.168.1 |
| 150 | nds | Trust_x.17.3.0/24 |
| 292 | nds | DROP-DMZ-PRIVATE-HOSTS |
| 293 | nds | DROP-SHARED-SERVICES-HOSTS |
| 294 | nds | DROP-DMZ-MGMT-HOSTS |
| 295 | nds | DROP-SHARED-SERVICES-MGMT-HOSTS |
| 296 | nds | DROP-DMZ-PUBLIC-HOSTS |
| 301 | nds | w.3.w..0/22 |
| 500 | nds | x.y.26.0/26 |
| 519 | nds | x.y.28.0/26 |
| 520 | nds | x.y.24.0/24 |
| 530 | nds | x.y.27.0/25 |
| 531 | nds | x.y.27.128/25 |
| 540 | nds | x.y.29.0/24 |
| 560 | nds | Solarwinds2 |
| 570 | nds | Doors_Apps_x.y.31.0/24 |
| 571 | nds | ESX_NDC_Vmotion |
| 900 | nds | Oracle_RAC_HB_t.168.90.x |
| 901 | nds | MS_SQL_DB_Cluster_HB |
| 902 | nds | DMZ_x.16.8.0/24 |
+---------+----------+----------------------------------+
^^^ query results