Re: Studying IF statements

Shawn Thanks for the help, and your right, I peeked ahead and the lesson goes in that direction. Thanks again Gary "Shawn McKenzie" <nospam@mckenzies.net> wrote in message news:CF.57.22219.F310FB94@pb1.pair.com... > Shawn McKenzie wrote: >> Gary wrote: >>> Shawn >>> >>> Thanks for your reply. Some of what you are saying is a little ahead of >>> my >>> lessons, but let me address as best I can. The script worked fine in the >>> previous lesson where I was to send emails from my DB, this lesson is to >>> kill the email from being sent if empty. >>> >>>> On your very first line you haven't surround the email in quotes (only >>>> one quote). >>> That worked fine with the single quotes and is listed in the book that >>> way. >>> >>> Then later in the line $dbc = >>>> mysqli_connect(hostet',UN,'PW','DB') or die('Error >>>> connecting to MySQL >>>> server'); you're missing a quote before hostet. >>> The single quote was deleted when I was sanitizing the code to post >>> here, >>> but it is in the code...sorry. >>> >>> So the jist of what you are saying is to add "die" after the if >>> statements...but they are not in the book >>> >>> ***** >>> >>> I tried your code and it was not working either, am getting a parse >>> error >>> >>> Parse error: syntax error, unexpected T_CONSTANT_ENCAPSED_STRING in >>> on line 109 >>> Line 109 die 'You forgot to enter a subject and or text in the >>> body! <br/>Click the back button<br />'; >>> >>> "Shawn McKenzie" <nospam@mckenzies.net> wrote in message >>> news:B8.22.22219.724FEB94@pb1.pair.com... >>>> Gary wrote: >>>>> Reading a book on php/mysql (Head First) and the following code is not >>>>> working, athough I am pretty sure I have it as they say to. Trying to >>>>> kill a >>>>> sendmail script if I forget to enter a subject or text in body of >>>>> email. >>>>> I >>>>> am getting the echo, but it is still sending the emails out. >>>>> >>>>> What am I missing here? >>>>> >>>>> Thanks. >>>>> >>>>> Gary >>>>> >>>>> <?php >>>>> $from = emial@email.com'; >>>>> $subject =$_POST['subject']; >>>>> $text =$_POST['body_of_mail']; >>>>> >>>>> if(empty($subject)) { >>>>> if(empty($body_of_mail)){ >>>>> >>>>> echo 'You forgot to enter a subject and or text in the body! <br >>>>> />'; >>>>> >>>>> >>>>> $dbc = mysqli_connect(hostet',UN,'PW','DB') >>>>> or die('Error connecting to MySQL server'); >>>>> >>>>> $query = "SELECT * FROM table"; >>>>> $result = mysqli_query($dbc, $query) >>>>> or die('Error querying database.'); >>>>> >>>>> >>>>> >>>>> while ($row = mysqli_fetch_array($result)) { >>>>> $to = $row['email']; >>>>> $first_name = $row['first_name']; >>>>> $last_name = $row['last_name']; >>>>> $msg = "Dear $first_name $last_name,\n$text"; >>>>> mail($to, $subject, $msg, 'From:' . $from); >>>>> echo 'Email sent to: ' . $to . '<br />'; >>>>> } >>>>> $msg ="Dear $first_name.' '.$last_name\n $text"; >>>>> mail($to,$subject,$msg,$from); >>>>> echo "Email sent to: $to <br /> "; >>>>> >>>>> mysqli_close($dbc); >>>>> >>>>> } >>>>> } >>>>> >>>>> ?> >>>>> >>>>> >>>> Well, first, it shouldn't do anything because you have parse errors >>>> that >>>> should stop the script. >>>> >>>> On your very first line you haven't surround the email in quotes (only >>>> one quote). Then later in the line $dbc = >>>> mysqli_connect(hostet',UN,'PW','DB') or die('Error >>>> connecting to MySQL >>>> server'); you're missing a quote before hostet. >>>> >>>> Second, you look for empty vars and if they are empty then you echo >>>> that >>>> they forgot to enter them but go on to send the emails anyway. >>>> >>>> Then you loop through a database result and send to everyone and then >>>> you send another one to the last person you just sent to. >>>> >>>> Try this: >>>> >>>> <?php >>>> >>>> $from = 'emial@email.com'; >>>> $subject =$_POST['subject']; >>>> $text =$_POST['body_of_mail']; >>>> >>>> if(empty($subject) || empty($body_of_mail)) { >>>> die 'You forgot to enter a subject and or text in the body! <br >>>> />Click the back button<br />'; >>>> } else { >>>> $dbc = mysqli_connect('hostet',UN,'PW','DB') or >>>> die('Error connecting >>>> to MySQL server'); >>>> >>>> $query = "SELECT * FROM table"; >>>> $result = mysqli_query($dbc, $query) or die('Error querying >>>> database.'); >>>> >>>> while ($row = mysqli_fetch_array($result)) { >>>> $to = $row['email']; >>>> $first_name = $row['first_name']; >>>> $last_name = $row['last_name']; >>>> $msg = "Dear $first_name $last_name,\n$text"; >>>> mail($to, $subject, $msg, 'From:' . $from); >>>> echo 'Email sent to: ' . $to . '<br />'; >>>> } >>>> mysqli_close($dbc); >>>> } >>>> >>>> ?> >>>> >>>> -- >>>> Thanks! >>>> -Shawn >>>> http://www.spidean.com >>> >> >> So goes the typing code in to email :-) >> >> Try replacing the die line with: >> >> die('You forgot to enter a subject and or text in the body!<br />Click >> the back button.<br />'); >> > > This is just an example using the code that you posted as a learning > exercise. > > Your original IF said: if $subject is empty, then evaluate the next if > $body_of_mail is empty, if so, then echo 'You forgot to enter a subject > and or text in the body! <br />' THEN execute the rest of the code which > returns records from the db and then loops through them and send an > email to the addresses from the db query. > > I just added a die() which kills the script execution IF the fields are > empty and an ELSE, which is evaluated if the fields are NOT empty, that > does the db query and email. > > In a real world example, instead of die() you might reload the form and > display a message, so that the user can correct mistakes and resubmit. > > > -- > Thanks! > -Shawn > http://www.spidean.com