## get a list of the field names
my $keys = join (', ', @keys);
## get number of placeholders required (number of field names)
my $placeholder_count = @data;
## make $placeholder_count number of ?'s with a comma after each
my $placeholders = '?, ' x $placeholder_count;
## remove last space and comma
$placeholders = substr($placeholders, 0, - 2);
## make a string containing each piece of data separated by commas
my $data = '"' . join('", "', @data) . '"';

my $dbh = DBI->connect("DBI:mysql:database=$database;host=localhost", 
+$username, $password, {'RaiseError' => 1});
my $sth = $dbh->prepare("INSERT INTO $table ($keys) VALUES ($placehold
+ers)") or die $dbh->errstr;
$sth->execute($data) or die $dbh->errstr;

[download]

I am making a script which sends data to a MySQL database. From the code above, the penultimate line would read something like this:

my $sth = $dbh->prepare( "INSERT INTO table01 (field1, field2, field3) VALUES (?, ?, ?)" ) or die $dbh->errstr;

And on the last line, $data = '"rise", "against", "ftw"'. The problem is, I get the message:

DBD::mysql::st execute failed: called with 1 bind variables when 3 are needed

Perl is seeing my $data at $sth->execute($data) as one variable, not a list. So how could I create the variables there?

I guess there are other ways to do this, but I would like to know how to create variables within Perl with specific names anyway - getting a language to write its own code is awesome :D

In reply to Creating strings with specified names by pc0019

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