PostgreSQL

PHP Integration

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN">
 <html>
   <head></head>
   <body>       
 
 <?php
 // attempt a connection
 $dbh = pg_connect("host=localhost dbname=test user=postgres");
 if (!$dbh) {
     die("Error in connection: " . pg_last_error());
 }       
 
 // execute query
 $sql = "SELECT * FROM Countries";
 $result = pg_query($dbh, $sql);
 if (!$result) {
     die("Error in SQL query: " . pg_last_error());
 }       
 
 // iterate over result set
 // print each row
 while ($row = pg_fetch_array($result)) {
     echo "Country code: " . $row[0] . "<br />";
     echo "Country name: " . $row[1] . "<p />";
 }       
 
 // free memory
 pg_free_result($result);       
 
 // close connection
 pg_close($dbh);
 ?>       
 
   </body>
 </html>

edit_data.php

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN">
 <html>
   <head></head>
   <body>       
 
 <?php
 if ($_POST['submit']) {
     // attempt a connection
     $dbh = pg_connect("host=localhost dbname=test user=postgres");
     if (!$dbh) {
         die("Error in connection: " . pg_last_error());
     }
 
     // escape strings in input data
     $code = pg_escape_string($_POST['ccode']);
     $name = pg_escape_string($_POST['cname']);
 
     // execute query
     $sql = "INSERT INTO Countries (CountryID, CountryName) VALUES('$code', '$name')";
     $result = pg_query($dbh, $sql);
     if (!$result) {
         die("Error in SQL query: " . pg_last_error());
     }
 
     echo "Data successfully inserted!";
 
     // free memory
     pg_free_result($result);
 
     // close connection
     pg_close($dbh);
 }
 ?>       
 
    <form action="<?php echo $_SERVER['PHP_SELF']; ?>" method="post">
      Country code: <br> <input type="text" name="ccode" size="2">  
      <p>
      Country name: <br> <input type="text" name="cname">       
      <p>
      <input type="submit" name="submit">
    </form> 
 
   </body>
 </html>

Passwort zurücksetzen

echo "localhost   all   all   trust" | sudo tee -a /etc/postgresql/8.3/main/pg_hba.conf /dev/null

su - postgres

psql

CREATE USER root WITH PASSWORD 'password';

ALTER ROLE root SUPERUSER;

\q