PhpMyAdmin 在执行查询时导致错误:
SELECT * FROM users u
INNER JOIN address a ON u.userid=a.id
INNER JOIN health_status h ON u.userid=h.uid
WHERE u.userid='1634627411'
SELECT *
from users u
INNER join friends f on u.userid=f.user
inner join friends f1 on u.userid = f1.friend
WHERE f.user="1634627411"
两个查询都抛出错误
错误:
致命错误:未捕获的 TypeError:mb_strtolower() 期望参数 1 为字符串,/Applications/XAMPP/xamppfiles/phpmyadmin/libraries/classes/Display/Results.php:3095 中给出的 null 堆栈跟踪:#0 /Applications/XAMPP/xamppfiles /phpmyadmin/libraries/classes/Display/Results.php(3095): mb_strtolower(NULL) #1 /Applications/XAMPP/xamppfiles/phpmyadmin/libraries/classes/Display/Results.php(2772): PhpMyAdmin\Display\Results- >getRowInfoForSpecialLinks(Array, Array) #2 /Applications/XAMPP/xamppfiles/phpmyadmin/libraries/classes/Display/Results.php(2613): PhpMyAdmin\Display\Results->getRowValues(Object(mysqli_result), Array, 0, Array , Array, '', Array, 'SELECT * FROM u...', Array) #3 /Applications/XAMPP/xamppfiles/phpmyadmin/libraries/classes/Display/Results.php(4219): PhpMyAdmin\Display\Results- >getTableBody(对象(mysqli_result),数组,数组,数组,假)#4 /Applications/XAMPP/xamppfiles/phpmyadmin/libraries/classes/Sql.php(1364):PhpMyAdmin\Display\Results->getTable(对象(mysqli_result),数组,数组,假) #5 /Applications/XAMPP/xamppfiles/phpmyadmin/libraries/classes/Display/Results.php 中的应用程序,第 3095 行
我已经尝试过这个问题的答案。
我的 phpmyadmin 版本也是最新的 5.1.1
错误是什么意思以及如何解决?