PHP

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PHP by example...

Contents

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PHP and MySQL

Example of a small PHP script that inputs data from a form, puts in in a MySQL database and retrieves it.

Test the code at:

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MySQL

The MySQL commands: 

# Create database from command line
mysqladmin -u root -p create dbName

# Login to MySQL as root
mysql -uroot -p

#Create user privileges
GRANT ALL PRIVILEGES ON dbName.* TO user@localhost IDENTIFIED BY 'password';
flush privileges;

# Create table
use dbName;
CREATE TABLE data (id INT(10) UNSIGNED PRIMARY KEY AUTO_INCREMENT, datum DATETIME, surname VARCHAR(100), forname VARCHAR(100), email VARCHAR(255), misc VARCHAR(100));
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config.php

<?php 

// Global Variables

$mysql_user = 'user';
$mysql_password = 'password';
$mysql_db = 'dbName';
$mysql_host= 'localhost';
$addr_tbl = 'data';
?>
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index.php

The main file: 

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>Register</title>
<meta http-equiv="content-type"
    content="text/html; charset=UTF-8" />
</head>
<body>
<?php if ($_POST['surname']): 

if (!$_POST['forname']) {echo  "Bitte Vorname einfügen..."; exit();}

if (!$_POST['email']) {echo "Bitte eMail Adresse einfügen..."; exit();}
 
if (!$_POST['forename'] && !$_POST['email']) {echo "Bitte Vorname und eMail Adresse einfügen..."; exit();}
 
include('config.php');

$dbcnx = @mysql_connect($mysql_host, $mysql_user, $mysql_password);
 
if (!$dbcnx) {exit('<p>No connection to server....</p>');}
 
if (!@mysql_select_db($mysql_db)) {exit('<p>No database available...</p>');}
 
 $surname = $_POST['surname'];
 $forname = $_POST['forname'];
 $email = $_POST['email'];
 $misc = $_POST['misc'];
 $datum = date('Y-m-d H:m:s');

 $sql = "INSERT INTO $addr_tbl SET surname='$surname', forname='$forname', email='$email', datum='$datum', misc='$misc';";
 
if (@mysql_query($sql)) {echo '</br>Daten gespeichert...</br>';} 
else {echo '<p>' . mysql_error() . '</p>';}

 ?>
 <br/><br/>
 <p><b>Text!</b> <br/><br/>
 
 <?php else:
 ?>

 <h1>Registrierung</h1
 <br>
 Next event: NY 06/07.
 <br>
 <br>
 <form action="<?php echo $_SERVER['PHP_SELF']; ?>" method="post">
 <hr size='1' color=#ffcc00>
 <h3>Deine Daten:</h3><br>
 <table>
 <tr><td><label>Mein Name: </td><td><input type="text" name="surname" value=""/> </label><br /></td></tr>
 <tr><td><label>Mein Vorname: </td><td><input type="text" name="forname" /></label><br /></td></tr>
 <tr><td><label>Meine e-Mail Adresse: </td><td><input type="text" name="email" /></label><br /></td></tr>
 <tr><td></td><td><br /></td></tr>
 <tr><td><label>Bemerkungen: </td><td><input type="text" name="misc" /></label> <br /></td></tr>
 <tr><td></td><td><br /></td></tr>
 <tr><td></td><td><input type="submit" value="Submit" /></td></tr>
 </table>
 <br />
 <hr size='1' color=#ffcc00>
 </form>
 <br />
 Alle Daten werden vertraulich behandelt und nicht an Dritte weitergegeben.<br/><br/>
 
 <br />
 <?php endif; ?>
 
 </body>
 </html>
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admin.php

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<html>
<head>
<title>noonDB - addressBase</title>
<meta http-equiv="content-type"
    content="text/html; charset=iso-8859-1" />
</head>
<body>

<?php

include('config.php');

$dbcnx = @mysql_connect($mysql_host, $mysql_user, $mysql_password);

if (!$dbcnx) {
  exit('<p>Server not accessible...</p>');
}

if (!@mysql_select_db($mysql_db)) {
  exit('<p>Databes not found...</p>');
}

$myaddresses = @mysql_query('SELECT * FROM ' . $addr_tbl . ' order by datum asc;');
if (!$myaddresses) {
  exit('<p>Error: ' . mysql_error() . '</p>');
}

$str1 = sprintf("<table id='tbl' border='0' cellpadding='5' cellspacing='5'  width=120%% style='border-collapse: collapse'>");
$str1 = sprintf("%s\n <tr><td><b>Id</td><td><b>Datum</td><td><b>Name</b></td><td><b>Vorname</b></td><td><b>eMail</b></td><td><b>Bemerkungen</b></td></tr>",$str1);

while ($myaddress = mysql_fetch_array($myaddresses)) {

  $id = $myaddress['id'];
  $surname = $myaddress['surname'];
  $forname = $myaddress['forname'];
  $email = $myaddress['email'];
  $datum = $myaddress['datum'];
  $misc = $myaddress['misc'];
  
  $str2 = sprintf("%s\n <tr><td>%s</td><td>%s</td><td>%s</td><td>%s</td><td>%s</td><td>%s</td></tr>",$str2, 
  $id, $datum, $surname, $forname, $email, $misc);

}

  echo $str1 . $str2 . "</table><br/><br/>";

?>

</body>
</html>


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Send eMail

Sends email notification. Use 

include('http://www.../mail.php');
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mail.php

<?php

// The message

$message = "http://www.../list.php";

// In case any of our lines are larger than 70 characters, we should use wordwrap()

$message = wordwrap($message, 70);

$headers = 'From: my@mail.ch' . "\r\n" .

   'Reply-To: my@mail.ch' . "\r\n" .

   'X-Mailer: PHP/' . phpversion();

// Send

mail('my@mail.ch', '!!!! Text !!!!', $message, $headers);

?>
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