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para evitar la inyeccion usar esta funcion:

Código [Seleccionar] Expandir




if (!function_exists("GetSQLValueString")) {
function GetSQLValueString($theValue, $theType, $theDefinedValue = "", $theNotDefinedValue = "")
{
  $theValue = get_magic_quotes_gpc() ? stripslashes($theValue) : $theValue;

  $theValue = function_exists("mysql_real_escape_string") ? mysql_real_escape_string($theValue) : mysql_escape_string($theValue);

  switch ($theType) {
    case "text":
      $theValue = ($theValue != "") ? "'" . $theValue . "'" : "NULL";
      break;
case "text2":
      $theValue = ($theValue != "") ? "" . $theValue . "" : "NULL";
      break;   
    case "long":
    case "int":
      $theValue = ($theValue != "") ? intval($theValue) : "NULL";
      break;
    case "double":
      $theValue = ($theValue != "") ? "'" . doubleval($theValue) . "'" : "NULL";
      break;
    case "date":
      $theValue = ($theValue != "") ? "'" . $theValue . "'" : "NULL";
      break;
    case "defined":
      $theValue = ($theValue != "") ? $theDefinedValue : $theNotDefinedValue;
      break;
case "like":
      $theValue = ($theValue != "") ? "'%" . $theValue . "%'" : "NULL";
      break;
case "likedespues":
      $theValue = ($theValue != "") ? "'" . $theValue . "%'" : "NULL";
      break;
case "likeantes":
      $theValue = ($theValue != "") ? "'%" . $theValue . "'" : "NULL";
      break;
  }
  return $theValue;
}
}