send email via php only once - php

Question

i studying on PHP now, and want to learn how to send email from diretory web to someone email with attachment,,
i try with this code, and it worked, but when i try to send email again to other email address, it didnt send again and need a few hour (or few moment, i didnt know exactly, just my guess) to worked again. i didnt know what the real problem is?
if someone have same problem with me, please share here. thanks in advance. and sorry for my bad english.
this is my code,
<?php
session_start();
if (isset($_SESSION['xx']) && $_SESSION['xx'] == session_id() ) {
//panggil file config.php untuk menghubung ke server
include('config.php');
//catch data from the form
$nmMhs = $_POST['name'];
$sexMhs = (isset($_POST['sex']))?$_POST['sex']:"";
$almMhs = $_POST['address'];
$tlpMhs = $_POST['telp'];
$date=$_POST['tgl']; $month=$_POST['bln']; $year=$_POST['thn'];
$tgllhrMhs = $date.'-'.$month.'-'.$year;
$emlMhs = $_POST['email'];
$prodiMhs = (isset($_POST['prodi']))?$_POST['prodi']:"";
$statMhs = (isset($_POST['stat']))?$_POST['stat']:"";
$klsMhs = (isset($_POST['kelas']))?$_POST['kelas']:"";
$orgMhs = $_POST['org'];
$sakitMhs = $_POST['sick'];
$almetMhs = (isset($_POST['almet']))?$_POST['almet']:"";
$kausMhs = (isset($_POST['kaos']))?$_POST['kaos']:"";
//send email
$email_to = $emlMhs; // The email you are sending to (example)
$email_from = "someone#gmail.com"; // The email you are sending from (example)
$email_subject = "subject of the messages"; // The Subject of the email
$email_txt = "hello everybody, this is a message"; // Message that the email has in it
//email attachment
$fileatt = "path/file"; // Path to the file (example)
$fileatt_type = "application/msword"; // File Type
$fileatt_name = "file.docx"; // Filename that will be used for the file as the attachment
$file = fopen($fileatt,'rb');
$data = fread($file,filesize($fileatt));
fclose($file);
$semi_rand = md5(time());
$mime_boundary = "==Multipart_Boundary_x{$semi_rand}x";
$headers="From: $email_from"; // Who the email is from (example)
$headers .= "\nMIME-Version: 1.0\n" .
"Content-Type: multipart/mixed;\n" .
" boundary=\"{$mime_boundary}\"";
$email_message .= "This is a multi-part message in MIME format.\n\n" .
"--{$mime_boundary}\n" .
"Content-Type:text/html; charset=\"iso-8859-1\"\n" .
"Content-Transfer-Encoding: 7bit\n\n" . $email_txt;
$email_message .= "\n\n";
$data = chunk_split(base64_encode($data));
$email_message .= "--{$mime_boundary}\n" .
"Content-Type: {$fileatt_type};\n" .
" name=\"{$fileatt_name}\"\n" .
"Content-Transfer-Encoding: base64\n\n" .
$data . "\n\n" .
"--{$mime_boundary}--\n";
//save data to database
if($prodiMhs == "S1 Manajemen"){
$query = mysql_query("insert into mhs_manajemen values(null, '$nmMhs', '$sexMhs', '$almMhs', '$tlpMhs', '$tgllhrMhs', '$emlMhs', '$prodiMhs', '$statMhs', '$klsMhs', '$orgMhs', '$sakitMhs', '$almetMhs', '$kausMhs' )") or die(mysql_error());
if ($query) {
mail($email_to,$email_subject,$email_message,$headers);
echo "<script type='text/javascript'>
window.alert('Data has been inputed')
window.location.href='isi_data.php';
</script>";
}
}
if($prodiMhs == "S1 Administrasi Niaga"){
$query = mysql_query("insert into mhs_administrasi values(null,'$nmMhs', '$sexMhs', '$almMhs', '$tlpMhs', '$tgllhrMhs', '$emlMhs', '$prodiMhs', '$statMhs', '$klsMhs', '$orgMhs', '$sakitMhs', '$almetMhs', '$kausMhs' )") or die(mysql_error());
if ($query) {
mail($email_to,$email_subject,$email_message,$headers);
echo "<script type='text/javascript'>
window.alert('Data has been inputed')
window.location.href='isi_data.php';
</script>";
}
}
} else {
session_destroy();
echo "<script type='text/javascript'>
window.alert('<b>Access denied! Please login first!<b>')
window.location.href='index.php';
</script>";
}
?>

Answer 1

If you use else if and else instead of just an if the script will only execute one of the 2 blocks of code. So try putting else if directly after the closing curly bracket of if($prodiMhs == "S1 Manajemen"){. Basicly change if($prodiMhs == "S1 Administrasi Niaga"){ to else if($prodiMhs == "S1 Administrasi Niaga"){ More info on elseif and else.
I hope this helps you.