database.php
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<?php
/*
**********************************************************************
Por: Jose Mar?Rodr?ez Valls
Para: http://php.elcurriculum.com
ver 1.0 2005 Todos los derechos quedan reservados.
**********************************************************************
*/
class clBD {

    function
OBTPost($datos, $modo = true) {
        
$ret = array();
        if (
$modo) {
          
$c = split(',', $datos);
          foreach (
$_POST as $k => $v) {
               if (
array_search($k, $c) === false) {
                
$ret[$k] = $v;
               }
          }
        } else {
          
$c = split(',', $datos);
          foreach (
$c as $k => $v) {
            
$ret[$v] = $_POST[$v];
          }
        }
        return
$ret;
    }

    function
OBTGet($datos, $modo = true) {
        
$ret = array();
        if (
$modo) {
          
$c = split(',', $datos);
          foreach (
$_GET as $k => $v) {
               if (
array_search($k, $c) === false) {
                
$ret[$k] = $v;
               }
          }
        } else {
          
$c = split(',', $datos);
          foreach (
$c as $k => $v) {
            
$ret[$v] = $_GET[$v];
          }
        }
        return
$ret;
    }

    function
OBTSesion($datos, $modo = true) {
        
$ret = array();
        if (
$modo) {
          
$c = split(',', $datos);
          foreach (
$_SESSION as $k => $v) {
               if (
array_search($k, $c) === false) {
                
$ret[$k] = $v;
               }
          }
        } else {
          
$c = split(',', $datos);
          foreach (
$c as $k => $v) {
            
$ret[$v] = $_SESSION[$v];
          }
        }
        return
$ret;
    }


    function
SQLInsert($tabla, $contenido) {
        
$sSQL = "insert into `$tabla` (`id_$tabla`";
        
$sSUF = '';
          foreach (
$contenido as $k => $v) {
           
$sSQL .= ',`' . $k . '`';
           
$sSUF .= ',\'' . $v . '\'';
        }
        
$sSQL .= ") values (LAST_INSERT_ID()" . $sSUF . ')';
        return
$sSQL;
    }

    function
SQLUpdate($tabla, $contenido, $id) {
        
$sSQL = "update `$tabla` set";
          foreach (
$contenido as $k => $v) {
            
$sSQL .= ' ' . $k . ' = \'' . $v . '\',';
        }
        
$sSQL = substr($sSQL, 0 , strlen($sSQL) -1);
        
$sSQL .= " where id_$tabla = '$id'";
        return
$sSQL;
    }

    function
SQLDelete($tabla, $id) {
        return
"delete from `$tabla` where id_$tabla = '$id'";
    }

}

class
clMySQL extends clBD {
    var
$abierto;
    var
$con;
    var
$host;
    var
$bd;
    var
$usr;
    var
$psr;

    function
clMySQL($host, $bd, $usr, $psr) {
        
$this->abierto = false;
        
$this->host = $host;
        
$this->bd = $bd;
        
$this->usr = $usr;
        
$this->psr = $psr;
    }

    function
OpenMySQL() {
           if (!
$this->abierto) $this->con = mysql_connect($this->host, $this->usr, $this->psr);
        
mysql_select_db($this->bd, $this->con);
        
$this->abierto = true;
    }

    function
BDConexion($sql) {
        if (!
$this->abierto) $this->OpenMySQL();
        return
mysql_query($sql, $this->con);
    }

    function
BDInsert($tabla, $contenido) {
        if (!
$this->abierto) $this->OpenMySQL();
           if (
mysql_query($this->SQLInsert($tabla, $contenido), $this->con)) {
              return
mysql_insert_id($this->con);
           } else {
              return -
1;
           }
    }

    function
BDUpdate($tabla, $contenido, $id) {
        if (!
$this->abierto) $this->OpenMySQL();
        return
$this->BDConexion($this->SQLUpdate($tabla, $contenido, $id));
    }

    function
BDDelete($tabla, $id) {
        if (!
$this->abierto) $this->OpenMySQL();
        return
$this->BDConexion($this->SQLDelete($tabla, $id));
    }

    function
CloseMySQL() {
        if (
$this->abierto) mysql_close($this->con);
        
$this->abierto = false;
    }

}
?>
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