是的,我是一名学生,是的,这是一项作业,但我只需要一些帮助来解决问题。我不打算让别人为我做作业。
所以我有一个数据库,里面有 5 本书,有 6 个不同的数据列。我正在尝试制作一个可以搜索该数据库并在表中返回结果的 perl 程序。我必须添加一种将它们添加到购物车的方法,但稍后会出现。
Perl 的问题是我不知道如何检查为什么会出现“内部服务器错误”。该应用程序进入 Perl 页面,所以我猜不是这样。
#!/usr/bin/perl
use warnings; # allow for warnings to be sent if error's occur
use CGI qw( :standard ); # not a 100% sure what the rest of these mean but they are like #includs in C++, libraries for reference in the code
use DBI;
use DBD::mysql; #database data will come from mysql
my $dbh = DBI->connect( "DBI:mysql:DATABASE NAME", "USERNAME", "PASS REMOVED" ) or
die( "Could not make connection to database: $DBI::errstr" ); # connect to the database with address and pass or return error
$term = $SEARCHTERM[]; #set the search char to $term
$term =~ tr/A-Z/a-z/; #set all characters to lowercase for convenience of search
$sql = "SELECT * FROM Books WHERE Title LIKE %$term% OR Description LIKE %$term% OR Author LIKE %$term%" or die ("$term may have not worked"); #set the query string to search the database
$sth = $dbh->prepare($sql); # prepare to connect to the database
$sth->execute # connect to the database
or die "SQL Error: $DBI::errstr\n"; #or return an error
while (@data = $sth->fetchrow_array) { #while we are grabbing he queried data do a table setup and set variables for table
print "<table width=\"100%\" border=\"0\"> ";
$title = $data[0];
$desc = $data[1];
$author = $data[2];
$pub = $data[3];
$isbn = $data[4];
$photo = $data[5];
print "<tr> <td width=50%>Title: $title</td> <td width=50% rowspan=5>$photo</td></tr><tr><td>Discreption Tags: $desc</td></tr><tr><td></td></tr><tr><td>Author: $author</td></tr><tr><td>ISBN: $isbn</td>
</tr></table> \n";
}
请帮忙!