php - 如何计算 PHP 表中所有带撇号的行？

Question

我无法计算表格中有撇号的行数。这是我的查询。

$name = "'"; // variable declared for apostrophe

$script_select = mysql_query("SELECT COUNT(*) AS rowcount FROM (SELECT * FROM   my_db.my_tb WHERE (customer_name REGEXP '".$name."' 
OR address_line_1 REGEXP '".$name."'  OR address_line_2 REGEXP '".$name."'
OR address_line_3 REGEXP '".$name."' OR address_line_4 REGEXP '".$name."'
OR address_line_5 REGEXP '".$name."')) counted");

     while ($row = mysql_fetch_array($script_select))
     {
         $sel_row = $row['rowcount'];

     }

Answer 1

你可以像这样运行一个普通的查询而不是所有的正则表达式和子查询:

select
    count(*) as recordCount
from
    my_db.my_tb
where
    customer_name like '%\'%'
    or address_line_1 like '%\'%'
    or address_line_2 like '%\'%'
    or address_line_3 like '%\'%'
    or address_line_4 like '%\'%'
    or address_line_5 like '%\'%'