daily backup of all mysql tables

mysql_backup.php

#! /usr/bin/php -q
<?php

  define ('MYSQL_ROOT', 'root');
  define ('MYSQL_PASS', 'passwd');

  # connexion a la base
  $conn = mysql_connect('localhost', 'root', 'tapioca');
    if (!$conn) die ('erreur connexion DB '.mysql_error());

  $f = mysql_query("SHOW DATABASES");
    if (!$f) die ('erreur SHOW DATABASES '.mysql_error());

  $bases = array();
  while ($t = mysql_fetch_row($f)) {
    if ($t[0] !== 'mysql')
      $bases[] = $t[0];
  }

  mysql_close($conn);
  foreach ($bases as $base)
    backup_base($base);

  exit(0);



  function backup_base($base) {
    $conn = mysql_connect('localhost', 'root', 'tapioca');
    $f = mysql_query("SHOW TABLES FROM $base");
      if (!$f) die ('erreur SHOW TABLES '.mysql_error());

    printf ("\n% 20s: ", $base);
    $tables = array();
    while ($t = mysql_fetch_row($f)) {
      if ($t[0] != 'mysql')
        $tables[] = $t[0];
    }
    mysql_close($conn);
    foreach ($tables as $table)
      backup_table($table, $base);

     echo "\n";
  }

  function backup_table($table, $base) {
    # ne pas backuper spip_index***
    if (preg_match(',^spip_index,', $table)) {
      echo "-";
      return;
    }

    # dumper la table dans le repertoire /var/state/mysql/$base/
    @mkdir ("/var/state/mysql/$base");
    chdir ("/var/state/mysql/$base")
      OR die ("erreur chdir /var/state/mysql/$base");

    system("mysqldump --opt -u".MYSQL_ROOT.' -p'.MYSQL_PASS." '$base' '$table'| gzip - > /var/state/mysql/$base/$table.gz");
    echo "+";
  }

?>