下面的代码分别用于创建mysql表和上传文件保存到mysql数据库

创建mysql表

<?php
  $con = mysql_connect("localhost", "", "");
  mysql_select_db("w3m");
  $sql = "CREATE TABLE updfiles ("
      . " id INTEGER NOT NULL AUTO_INCREMENT"
      . ", name VARCHAR(80) NOT NULL"
      . ", type VARCHAR(80) NOT NULL"
      . ", size INTEGER NOT NULL"
      . ", content BLOB"
      . ", PRIMARY KEY (id)"
      . ")";
  mysql_query($sql, $con);
  mysql_close($con);
?>

上传文件并保存到mysql中，通过insert语句插入

<?php
  $con = mysql_connect("localhost", "", "");
  mysql_select_db("w3m");
  $error = $_FILES['w3img']['error'];
  $tmp_name = $_FILES['w3img']['tmp_name'];
  $size = $_FILES['w3img']['size'];
  $name = $_FILES['w3img']['name'];
  $type = $_FILES['w3img']['type'];
  print("\n");
  if ($error == UPLOAD_ERR_OK && $size > 0) {
    $fp = fopen($tmp_name, 'r');
    $content = fread($fp, $size);
    fclose($fp);    
    $content = addslashes($content);
    $sql = "INSERT INTO fyi_files (name, type, size, content)"
      . " VALUES ('$name', '$type', $size, '$content')";
    mysql_query($sql, $con);
    print("File stored.\n");
  } else {
    print("Database Save for upload failed.\n");
  }
  print("
\n");
  mysql_close($con);
?>