您没有得到日期，因为引号之间有多余的空格

you getting no date because you have extra space betwee the quotes,

$query_getShows = "SELECT * FROM toho_shows WHERE toho_shows.show =' ". $show. " '";
                                                                    ^ HERE      ^

然后将被解析为

SELECT * FROM toho_shows WHERE toho_shows.show =' gothaf '

删除它，它将起作用

remove it and it will work

$query_getShows = "SELECT * FROM toho_shows WHERE toho_shows.show ='". $show. "'";

作为附带说明，如果值( s )的变量来自外部.请查看下面的文章，以了解如何防止这种情况的发生.通过使用PreparedStatements，您可以摆脱在值周围使用单引号的情况.

As a sidenote, the query is vulnerable with SQL Injection if the value(s) of the variables came from the outside. Please take a look at the article below to learn how to prevent from it. By using PreparedStatements you can get rid of using single quotes around values.

• 如何在PHP中防止SQL注入?