Hello list,
I just wanted to bounce a slight issue that I'm having off you
regarding self referencing a php script. Moving from the
'sendemail.htm' page where a form is used to the 'sendemail.php' page
that is in the form action works fine! But if you reload the page, the
php part of the equation loses track of it's $_POST[] variables, and
you see the following errors in the output of the php page:
Notice: Undefined index: subject in
/Library/WebServer/Documents/examples/ch03/final/makemeelvis/sendemail.php
on line 19
Notice: Undefined index: elvismail in
/Library/WebServer/Documents/examples/ch03/final/makemeelvis/sendemail.php
This is the original form from the sendemail.html page:
<form method="post" action="sendemail.php">
<label for="subject">Subject of email:</label><br />
<input id="subject" name="subject" type="text" size="30" /><br />
<label for="elvismail">Body of email:</label><br />
<textarea id="elvismail" name="elvismail" rows="8"
cols="40"></textarea><br />
<input type="submit" name="Submit" value="Submit" />
</form>
On the php page I'm using a true / false 'flag' to indicate whether or
not a form is displayed.
$output_form = "false";
If the user fails to submit information to either field the script
re-displays the form via the $output_form variable:
if (empty($subject) && empty($text)) {
//* We know both $subject AND $text are blank
echo 'You forgot the email subject and body.<br />';
$output_form="true";
}
if ($output_form == 'false') {
$dbc = mysqli_connect('127.0.0.1', 'admin', 'secret', 'elvis_store')
or die('Error connecting to MySQL server.');
$query = "SELECT * FROM email_list";
$result = mysqli_query($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);
}
The html form is really the only important part of the .html page, but
here is the full php script from 'sendemail.php' to provide a bit of
context. Passwords have been changed to protect the innocent!
<?php
$from = 'me@xxxxxxxxxxxx';
$subject = $_POST['subject'];
$text = $_POST['elvismail'];
$output_form = "false";
if (empty($subject) && empty($text)) {
//* We know both $subject AND $text are blank
echo 'You forgot the email subject and body.<br />';
$output_form="true";
}
if (empty($subject) && !empty($text)) {
echo 'You forgot the email subject.<br />';
$output_form="true";
}
if ((!empty($subject)) && empty($text)) {
echo 'You forgot the email body text.<br />';
$output_form="true";
}
if ($output_form == 'true') {
echo '<br /><br /><form action="sendemail.php" "method="post">
<label for="subject">Subject of email:</label><br />
<input id="subject" name="subject" type="text" size="30" /><br />
<label for="elvismail">Body of email:</label><br />
<textarea id="elvismail" name="elvismail" rows="8"
cols="40"></textarea><br />
<input type="submit" name="Submit" value="Submit" />
</form>';
}
if ($output_form == 'false') {
$dbc = mysqli_connect('127.0.0.1', 'admin', 'secret', 'elvis_store')
or die('Error connecting to MySQL server.');
$query = "SELECT * FROM email_list";
$result = mysqli_query($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'];å
$msg = "Dear $first_name $last_name,\n$text";
mail($to, $subject, $msg, 'From:' . $from);
echo 'Email sent to: ' . $to . '<br />';
}
mysqli_close($dbc);
}
?>
Thanks in advance!
tim
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