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这篇文章主要介绍了PHP中FTP相关函数,涉及php操作ftp的连接、传输及文件与目录的相关操作技巧,具有一定参考借鉴价值,需要的朋友可以参考下

<?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 );

希望本文所述对大家PHP程序设计有所帮助。