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本文实例讲述了php中ftp相关函数。分享给大家供大家参考，具体如下：
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<?php
set_time_limit(0);
//转存本地地址
define(
'store_path',
dirname(__file__) . '/../../../../temp_data/test/'
);
define('list_path', store_path . 'list/');
define('chapter_path', list_path . 'chapter/');
define('detail_path', list_path . 'detail/');
createfolder(store_path);
createfolder(list_path);
createfolder(chapter_path);
createfolder(detail_path);
$ftp_server = "ip";
$ftp_user = "anonymous";
$ftp_pass = "anonymous";
$conn_id = ftp_connect ( $ftp_server ) or die ( "couldn't connect to $ftp_server" );
if (@ftp_login ( $conn_id, $ftp_user, $ftp_pass )) {
echo "connected as $ftp_user@$ftp_server\n";
} else {
echo "couldn't connect as $ftp_user\n";
}
ftp_pasv($conn_id, true);
/**
* 创建文件并写入内容
*
* @param string $path path/
* @param string $filename filename
* @param string $data content
*
* @return string 返回路径
*/
function createfile ($path, $filename, $data)
{
if (empty($data)) {
return false;
}
file_put_contents($path . $filename, $data);
return $path . $filename;
}
/**
* 创建目录
*
* @param string $path path
*
* @return no
*/
function createfolder ($path)
{
if (! file_exists($path)) {
createfolder(dirname($path));
if (mkdir($path, 0777)) {
echo "\n dir not find ,make dir " . dirname($path) . " is ok!";
} else {
echo "\n dir not find ,make dir " . dirname($path) . " is fail!";
}
}
}
/**
* 抓取电子书籍的类别
*
* @param string $xmlurl xml地址
* @param string $savefilename 文件名称
*
* @return string 返回路径
*/
function getclassxml ($conn_id,$categorydir, $savefilename = 'category.xml')
{
//获取顶级栏目
$clist = getdirlistformftp($conn_id, $categorydir);
$itemtpl = '<item><id>%s</id><name>%s</name></item>';
$items='';
foreach ($clist as $key=>$value){
$items .=sprintf($itemtpl,$value['name'],$value['detail']);
}
$bodytpl='<tofo><class>%s</class></tofo>';
$data = sprintf($bodytpl,$items);
echo "\n".createfile(store_path, $savefilename, $data);
}
set_time_limit(0);
$start_time = time();
$bookcache=array();
$categorydir = "\\tingshu\\web";
getclassxml($conn_id,$categorydir);
//获取顶级栏目
$clist = getdirlistformftp($conn_id, $categorydir);
//获取二级栏目分类
foreach ($clist as $key=>$value){
$_secondcateorydir = $categorydir.'\\'.$value['name'];
$_secondcateorylist = getdirlistformftp($conn_id, $_secondcateorydir);
$listdata='';
$listtpl='<tofo><class><id>%s</id><name>%s</name><books>%s</books></class></tofo>';
$items ='<item><id>%s</id><name>%s</name></item>';
$listitemstring='';
//获取详细书籍章节列表
foreach ($_secondcateorylist as $key=>$book){
$listitemstring.=sprintf($items,$book['name'], $book['detail']);
$_booklistdir = $_secondcateorydir.'\\'.$book['name'];
$chapters = getbook($conn_id,$_booklistdir);
//生产book章节html
getbookofchapter ($book,$chapters);
//缓存bookid和章节信息
$bookcache[$book['name']] = array('category'=>$value['name'],'chapters'=>$chapters);
}
//生成二级栏目列表页
$listdata = sprintf($listtpl, $value['name'], $value['detail'],$listitemstring);
$list_save_path = $value['name'] . '.xml';
echo "\n".createfile(list_path, $list_save_path, $listdata);
}
$arrstring = "<?php \n \$bookcache=".var_export($bookcache, true).";\n?>";
echo "\n建立缓存文件：".createfile(store_path, 'bookcache.php', $arrstring);
/**
* 抓取书籍章节信息
*
* @param array $bookids 书籍章节信息
*
* @return boolean 返回是否抓取成功
*/
function getbookofchapter ($bookinfo,$chapters)
{
if (! is_array($chapters)) {
return false;
}
$bookdata = '';
$booktpl = '<tofo><books><id>%s</id><name>%s</name><volumes>%s</volumes></books></tofo>';
$bookitemtpl='<item><id>%s</id><name>%s</name></item>';
//<play>%s</play>
//<download>%s</download>
//,$item['downurl'],$item['downurl']
$chapterstring='';
foreach ($chapters as $key=>$item){
$chapterstring.=sprintf($bookitemtpl,$item['name'],$item['detail']);
}
//生成二级栏目列表页
$bookdata = sprintf($booktpl, $bookinfo['name'], $bookinfo['detail'],$chapterstring);
$book_chapter_save_path = $bookinfo['name'] . '.xml';
if (! empty($bookdata)) {
echo "\n".createfile(chapter_path, $book_chapter_save_path, $bookdata);
}
return true;
}
function getbook($conn_id,$_booklistdir){
$chapter=array();
$buff = ftp_nlist ( $conn_id, $_booklistdir );
if(is_array($buff)){
$resourcearray = array();
foreach ($buff as $key=>$value){
if(strstr( $value, '.txt' )){
}else{
$resourcesname = str_replace($_booklistdir.'\\', "", $value);
$temp = preg_split ( '/\./',$resourcesname);
$resourcearray[trim($temp[0])]=$resourcesname;
}
}
foreach ($buff as $key=>$value){
if(strstr( $value, '.txt' )){
$name = trim(str_replace(".txt","",str_replace($_booklistdir.'\\', "", $value)));
$chapter[$name] = array (
'name' => $name,
'detail' => getfilecontentsformftp ( $conn_id, $value ),
'downurl' =>$resourcearray[$name]
);
}
}
}
ksort($chapter , sort_numeric);
echo "\n";
var_dump('chapter index :'.implode(array_keys ($chapter), ','));
echo "\n";
return $chapter;
}
function getdirlistformftp($conn_id, $categorydir) {
$categoryarray = array ();
$dirs = getdirnameformftp ( $conn_id, $categorydir );
//获取分类描述
foreach ( $dirs as $key => $value ) {
$path = $categorydir . '\\' . $value . '.txt';
$categoryarray [] = array ('name' => $value, 'detail' => getfilecontentsformftp ( $conn_id, $path ) );
}
return $categoryarray;
}
function getfilecontentsformftp($conn_id, $server_file) {
$_tempfilename = store_path.'temp.tmp';
$content = '';
try {
if (ftp_get ( $conn_id, $_tempfilename, $server_file, ftp_ascii )) {
$content = file_get_contents ( $_tempfilename );
}
} catch (exception $e) {
var_dump('error timeout:-----');
global $ftp_server;
$conn_id = ftp_connect ( $ftp_server );
if (@ftp_login ( $conn_id, $ftp_user, $ftp_pass )) {
echo "connected as $ftp_user@$ftp_server\n";
} else {
echo "couldn't connect as $ftp_user\n";
}
ftp_pasv($conn_id, true);
if (ftp_get ( $conn_id, $_tempfilename, $server_file, ftp_ascii )) {
$content = file_get_contents ( $_tempfilename );
}
}
$content = iconv ( "gbk", "utf-8//ignore", trim($content) );
echo "\n";
var_dump('file name :'.$server_file.';content:'.$content);
return $content;
}
function getdirnameformftp($conn_id, $dirstring) {
$buff = ftp_rawlist ( $conn_id, $dirstring );
$dirs = array_filter ( $buff, "dirfilter" );
foreach ( $dirs as $key => $value ) {
$temp = preg_split ( '/<dir>/', $value );
$dirs [$key] = trim ( $temp [1] );
}
asort($dirs , sort_numeric);
return $dirs;
}
function dirfilter($var) {
return (strstr ( $var, '<dir>' ));
}
ftp_close ( $conn_id );
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