本文实例讲述了php中adodbzip类程序代码。分享给大家供大家参考。具体如下：
复制代码 代码如下:
// 设定参数
AdodbZip::$zip_url = 'http://c.net教程works-kr-1.dl.sourceforge.net/project/adodb/adodb-php5-only/adodb-509-for-php5/adodb509.zip'; //［设置项］Adodb的Zip文件下载地址，文件比较大建议先下载或者解压
AdodbZip::$zip_file = sys_get_temp_dir () . preg_replace ( '/^.*/(adodb.*?.zip)$/i', 'adodb/$1', AdodbZip::$zip_url ); //［设置项］Adodb的Zip文件缓存位置
AdodbZip::$entry_dir = 'adodb5';
AdodbZip::$extract_dir = sys_get_temp_dir () . 'adodb/' . AdodbZip::$entry_dir; //［设置项］Adodb程序文件缓存位置
AdodbZip::$server = 'localhost'; //［设置项］服务器
AdodbZip::$user = 'root'; //［设置项］用户名
AdodbZip::$pwd = ''; //［设置项］密码
AdodbZip::$db = 'test'; //［设置项］数据库教程
AdodbZip::$charset = ''; //［设置项］编码
// 注册协议
if (! in_array ( 'AdodbZip', stream_get_wrappers () )) {
stream_wrapper_register ( 'AdodbZip', 'AdodbZip' );
}
// 定义常量
if (! defined ( 'ADODB_DIR' )) {
define ( 'ADODB_DIR', 'AdodbZip:/' );
}
// 包含程序
require_once (ADODB_DIR . '/adodb.inc.php');
// $db = AdodbZip::init(NewADOConnection('mysqlt')); // ［选择项］引用即定义$db
// return AdodbZip::init(NewADOConnection('mysqlt')); // ［选择项］引用即返回$db，注意只可引用一次。
class AdodbZip {
public static $zip_url;
public static $zip_file;
public static $entry_dir;
public static $extract_dir;
public static $server;
public static $user;
public static $pwd;
public static $db;
public static $charset;
private $handle;
public $context;
public static function init(&$adodb) {
$adodb->Connect ( self::$server, self::$user, self::$pwd, self::$db );
if(self::$charset!=''){
$adodb->Execute('SET NAMES '.self::$charset.';');
}
return $adodb;
}
public function __construct() {
}
public function stream_cast($cast_as) {
return false;
}
public function stream_close() {
fclose ( $this->handle );
}
public function stream_eof() {
return feof ( $this->handle );
}
public function stream_flush() {
return fflush ( $this->handle );
}
public function stream_lock($options) {
return flock ( $this->handle, $options );
}
public function stream_open($path, $mode, $options, &$opend_path) {
// 验证文件地址
if (! preg_match ( '/^.*?://(.*)$/', $path, $matches )) {
return false;
}
$tmp_file = self::$extract_dir . DIRECTORY_SEPARATOR . $matches [1];
$entry_file = self::$entry_dir . '/' . str_replace ( '', '/', $matches [1] );
$zip_file = self::$zip_file;
// 验证程序文件
if (! file_exists ( $tmp_file ) || file_exists ( $zip_file ) && filectime ( $tmp_file ) < filectime ( $zip_file )) {
// 下载文件
if (! file_exists ( $zip_file )) {
// 目录处理
if (! is_dir ( dirname ( self::$zip_file ) )) {
if (mkdir ( dirname ( self::$zip_file ), 0777, true ) === false) {
header ( 'Content-type: text/html;charset=utf-8' );
die ( '请创建目录 ' . $zip_dir );
}
}
// 下载文件
if (! file_exists ( self::$zip_file )) {
$break = true;
do {
$url_arr = parse_url ( self::$zip_url );
$fp = fsockopen ( $url_arr ['host'], isset ( $url_arr ['port'] ) ? ( int ) $url_arr ['port'] : 80, $errno, $errstr, 10 );
if ($fp === false) {
break;
}
$out = "GET " . $url_arr ['path'] . " HTTP/1.0rnHost: " . $url_arr ['host'] . " rnConnection: closernrn";
fputs ( $fp, $out );
if (feof ( $fp )) {
break;
}
$buffer = fgets ( $fp, 1024 );
if (! preg_match ( '/^HTTP/1.d 200 /i', $buffer )) {
break;
}
$content_length = false;
$content_start = false;
while ( ! feof ( $fp ) ) {
$buffer = fgets ( $fp, 1024 );
if ($buffer === "rn") {
$content_start = true;
break;
}
if (preg_match ( '/^Content-Length:s*(d+)/i', $buffer, $matches )) {
$content_length = ( int ) $matches [1];
}
}
if ($content_length === false || $content_start === false) {
break;
}
$content = stream_get_contents ( $fp );
if ($content === false) {
break;
}
$result = file_put_contents ( self::$zip_file, $content );
unset ( $content );
if ($result === false) {
break;
}
fclose ( $fp );
} while ( $break = false );
if ($break) {
header ( 'Content-type: text/html;charset=utf-8' );
die ( '请下载文件 ' . self::$zip_url . '.zip 保存为 ' . self::$zip_file );
}
}
}
// 创建目录
$tmp_dir = dirname ( $tmp_file );
if (! is_dir ( $tmp_dir )) {
if (mkdir ( $tmp_dir, 0777, true ) === false) {
header ( 'Content-type: text/html;charset=utf-8' );
die ( '请创建目录 ' . $tmp_dir );
}
}
// 打开压缩文件
$zip = zip_open ( $zip_file );
if (! is_resource ( $zip )) {
return false;
}
// 寻找解压文件
do {
$entry = zip_read ( $zip );
if (! is_resource ( $entry )) {
return false;
}
if (zip_entry_name ( $entry ) == $entry_file) {
break;
}
} while ( true );
// 转存压缩文件
zip_entry_open ( $zip, $entry );
file_put_contents ( $tmp_file, zip_entry_read ( $entry, zip_entry_filesize ( $entry ) ) );
zip_entry_close ( $entry );
zip_close ( $zip );
}
// 打开文件
$this->handle = fopen ( $tmp_file, $mode );
if (! is_resource ( $this->handle )) {
return false;
}
return true;
}
public function stream_read($count) {
return fread ( $this->handle, $count );
}
public function stream_seek($offset, $whence = SEEK_SET) {
return fseek ( $this->handle, $offset, $whence );
}
public function stream_set_option($option, $arg1, $arg2) {
return false;
}
public function stream_stat() {
return fstat ( $this->handle );
}
public function stream_tell() {
return ftell ( $this->handle );
}
public function stream_write($data) {
return fwrite ( $this->handle, $data );
}
public function url_stat($path, $flag) {
if (! preg_match ( '/^.*?://(.*)$/', $path, $matches )) {
return false;
}
$tmp_file = self::$extract_dir . DIRECTORY_SEPARATOR . $matches [1];
if (file_exists ( $tmp_file )) {
if ($flag & STREAM_URL_STAT_link) {
return lstat ( $tmp_file );
} else {
return stat ( $tmp_file );
}
}
if ($flag & STREAM_URL_STAT_QUIET) {
$arr = array ('dev' => 0, 'ino' => 0, 'mode' => 0, 'nlink' => 0, 'uid' => 0, 'gid' => 0, 'rdev' => 0, 'size' => 0, 'atime' => 0, 'mtime' => 0, 'ctime' => 0, 'blksize' => 0, 'blocks' => 0 );
return array_merge ( array_values ( $arr ), $arr );
}
return false;
}
}
?>
使用实例代码如下:
复制代码 代码如下:
include_once 'AdodbZip.php';
$db = AdodbZip::init(NewADOConnection('mysqlt'));
echo $db->GetOne('SELECT NOW()');
?>
也是两步.
1. 包含AdodbZip.php文件
2. AdodbZip::init(...)函数对adodb连接类进行初始化
希望本文所述对大家的PHP程序设计有所帮助。
