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下拉列表中的每个状态我想要php中每个状态的记录总数_Php_Mysqli - Fatal编程技术网

下拉列表中的每个状态我想要php中每个状态的记录总数

下拉列表中的每个状态我想要php中每个状态的记录总数,php,mysqli,Php,Mysqli,PHP代码 Table_sup | +-------------------+ | supid=>int | | scompany=>varchar | | sstate=>varchar | | scity=>varchar | | scat=>varchar | 我想要什么 Select State ------------- | ALL | | CA

PHP代码

Table_sup           |
+-------------------+
| supid=>int        |                
| scompany=>varchar | 
| sstate=>varchar   | 
| scity=>varchar    | 
| scat=>varchar     | 
我想要什么

Select State
-------------
| ALL       | 

| CA        | 

| CO        |

| FL        | 

| GA        |

像这样。下拉列表中的每个状态我需要每个状态的记录总数

您没有从mysqli结果中获取第二列。尝试如下

Select State
+-------------------+

| ALL       |  

| CA (472)  | 

| CO  (7)   | 

| FL  (5)   | 

| GA   (45) | 

因为国家可以有多个州,每个州可以有多个城市,当你加入这些1对多和1对多时,你的州数就膨胀了。所以你需要不同的状态计数。城市计数对于国家和州来说已经是独一无二的,因此不需要区分。如果州不是乡村城市独有的,那么就需要有明显的区别。当然,这假设您需要每个国家的唯一州数

<?php
        $dd_res=mysqli_query($con,"Select sstate, count(sstate) AS state from sup GROUP BY sstate");   
            while($r=mysqli_fetch_row($dd_res))
                { echo "<option value='$r[0]'> $r[0] ( $r[1] )</option>";

                }
?>
考虑以下示例:


我很高兴能帮助您@Gautambos
<?php
        $dd_res=mysqli_query($con,"Select sstate, count(sstate) AS state from sup GROUP BY sstate");   
            while($r=mysqli_fetch_row($dd_res))
                { echo "<option value='$r[0]'> $r[0] ( $r[1] )</option>";

                }
?>
SELECT c.name, count(distinct s.name) as statecount,  count(ci.name) citycount 
FROM countries c,states s,cities ci
WHERE ci.state_id = s.id 
  and s.country_id = c.id 
GROUP BY s.name