2025-03-14 22:07:28<br><br />
<b>Warning</b>:  Undefined array key "userid" in <b>C:\xampp\htdocs\updatejd\update_jdac_zeng.php</b> on line <b>28</b><br />
<br />
<b>Fatal error</b>:  Uncaught mysqli_sql_exception: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '' at line 1 in C:\xampp\htdocs\updatejd\update_jdac_zeng.php:56
Stack trace:
#0 C:\xampp\htdocs\updatejd\update_jdac_zeng.php(56): mysqli_query(Object(mysqli), 'select count(*)...')
#1 C:\xampp\htdocs\updatejd\update_jdac_zeng.php(32): start_search(NULL)
#2 {main}
  thrown in <b>C:\xampp\htdocs\updatejd\update_jdac_zeng.php</b> on line <b>56</b><br />