source: branches/rsr.v5.1.1/web/app/data/modules/data_utils.php

<?php

  class data_utils extends data
  {

    # ----------------------------------------------------------------------------------------
    #                                              fonction de modification de champ generique
    #

    function get($table, $champ, $where_champ, $where_valeur)
    { $value = "";
      try
      { $query =
         "SELECT `".$champ."` as res"
        ." FROM #--".$table
        ." WHERE ".$where_champ."=".$this->eq($where_valeur)
        ." LIMIT 1";
        $rst = $this->sql->query($query);
        if($v_rst = $this->sql->fetch_assoc($rst)) $value = $v_rst["res"];
      }
      catch(Exception $_e) { $value = false; }
      return $value;
    }

    function set($table, $champ, $valeur, $where_champ, $where_valeur)
    { try
      { $query =
         "UPDATE #--".$table
        ." SET `".$champ."`=".$this->eq($valeur)
        ." WHERE `".$where_champ."`=".$this->eq($where_valeur)
        ." LIMIT 1";
        $this->sql->query($query);
      }
      catch(Exception $_e) { return false; }
      return true;
    }

    # ----------------------------------------------------------------------------------------
    #
    #   ci-dessous
    #
    #    - utils : des fonctions courantes dans le traitement des données
    #      (dates, echapement des simples quotes...)
    #
    #    - fonctions de base : des squelettes de fonctions pour l'accÚs en base
    #      (liste, ajout, modification...)
    #
    # ----------------------------------------------------------------------------------------

    # ----------------------------------------------------------------------------------------
    #                                                                                    utils
    #

    function html($content)
    { return str_replace
      ( array("&gt;", "&lt;", "&quot;"),
        array(">", "<", "\""),
        $content
      );
    }

    function encode_email($email)
    { return
       "<a href=\"".$this->ascii_entities("mailto:".$email)."\">"
      .$this->ascii_entities($email)
      ."</a>";
    }

    function ascii_entities($content)
    { $entities = "";
      $n = 0;
      while($n < strlen($content))
      { $entities .= "&#".ord($content[$n]).";";
        $n++;
      }
      return $entities;
    }

    function resume($content, $max)
    { $resume = "";
      $v_content = explode(" ", $content);
      for($n = 0; $n < $max; $n++) $resume .= $v_content[$n]." ";
      return $resume;
    }

    function eq($content) { return (isset($content) ? "'".str_replace("'", "\'", $content)."'" : "NULL"); }

    function frenchdate($i)
    { if(ereg("([0-9]{2,4})-([0-9]{1,2})-([0-9]{1,2})", $i, $regs)) $i = $regs[3]."-".$regs[2]."-".$regs[1];
      return $i;
    }

    function englishdate($i)
    { if(ereg("([0-9]{1,2})-([0-9]{1,2})-([0-9]{2,4})", $i, $regs)) $i = $regs[3]."-".$regs[2]."-".$regs[1];
      return $i;
    }

    function unix_time($mysql_timestamp)
    { if
      (    preg_match('/(\d{4})(\d{2})(\d{2})(\d{2})(\d{2})(\d{2})/', $mysql_timestamp, $pieces)
        || preg_match('/(\d{2})(\d{2})(\d{2})(\d{2})(\d{2})(\d{2})/', $mysql_timestamp, $pieces)
      )
      { $unix_time = mktime($pieces[4], $pieces[5], $pieces[6], $pieces[2], $pieces[3], $pieces[1]);
      }
      elseif
      (    preg_match('/\d{4}\-\d{2}\-\d{2} \d{2}:\d{2}:\d{2}/', $mysql_timestamp)
        || preg_match('/\d{2}\-\d{2}\-\d{2} \d{2}:\d{2}:\d{2}/', $mysql_timestamp)
        || preg_match('/\d{4}\-\d{2}\-\d{2}/', $mysql_timestamp)
        || preg_match('/\d{2}\-\d{2}\-\d{2}/', $mysql_timestamp)
      )
      { $unix_time = strtotime($mysql_timestamp);
      }
      elseif
      (    preg_match('/(\d{4})(\d{2})(\d{2})/', $mysql_timestamp, $pieces)
        || preg_match('/(\d{2})(\d{2})(\d{2})/', $mysql_timestamp, $pieces)
      )
      { $unix_time = mktime(0, 0, 0, $pieces[2], $pieces[3], $pieces[1]);
      }
      return $unix_time;
    }

    function str_to_hex($str)
    { $hex = "";
      $n = 0;
      while($n < strlen($str))
      { $hex_char = dechex(ord($str[$n]));
        if(strlen($hex_char) == 1) $hex_char = "0".$hex_char;
        $hex .= $hex_char;
        $n++;
      }
      return $hex;
    }

    function is_email($email)
    { $atom   = '[-a-z0-9!#$%&\'*+\\/=?^_`{|}~]';
      $domain = '([a-z0-9]([-a-z0-9]*[a-z0-9]+)?)';
      return preg_match
      ( '/^'.$atom.'+'.'(\.'.$atom.'+)*'.'@'.'('.$domain.'{1,63}\.)+'.$domain.'{2,63}$/i',
        $email
      );
    }

    # ----------------------------------------------------------------------------------------
    #                                                                        fonctions de base
    #

    function list_()
    { $list = array();
      try
      { $query = "SELECT * FROM #--table";
        $rst = $this->sql->query($query);
        while($v_rst = $this->sql->fetch_assoc($rst)) $list[$v_rst["id"]] = $v_rst;
        $this->sql->free_result($rst);
      }
      catch(Exception $_e) { $list = false; }
      return $list;
    }

    function add_($value)
    { try
      { $query =
         "INSERT INTO #--table(value) VALUES"
        ."( ".$this->eq($value)
        .")";
        $this->sql->query($query);
      }
      catch(Exception $_e) { return false; }
      return true;
    }

    function set_($id, $value)
    { try
      { $query =
         "UPDATE #--table SET"
        ."  value=".$this->eq($value)
        ." WHERE id=".$this->eq($id);
        $this->sql->query($query);
      }
      catch(Exception $_e) { return false; }
      return true;
    }

    function del_($id)
    { try
      { $query = "DELETE FROM #--table WHERE id=".$this->eq($id);
        $this->sql->query($query);
      }
      catch(Exception $_e) { return false; }
      return true;
    }

  }

?>