PHP link函数代码示例

function downloadFile($url, $installFile, $archivedFile)
{
    $tmpFile = $installFile . '.tmp';
    if (!file_exists($archivedFile) || filesize($archivedFile) == 0) {
        if (file_exists($installFile)) {
            unlink($archivedFile);
        }
        if (file_exists($tmpFile)) {
            unlink($tmpFile);
        }
        $ch = curl_init($url);
        $fp = fopen($tmpFile, "w");
        curl_setopt($ch, CURLOPT_FILE, $fp);
        curl_setopt($ch, CURLOPT_HEADER, 0);
        curl_exec($ch);
        curl_close($ch);
        fclose($fp);
        rename($tmpFile, $archivedFile);
    }
    if (file_exists($installFile)) {
        unlink($installFile);
    }
    link($archivedFile, $installFile);
    kdebug('link(' . $archivedFile . ', ' . $installFile . ')');
}

 public static function setUpBeforeClass()
 {
     if ('\\' === DIRECTORY_SEPARATOR) {
         self::$linkOnWindows = true;
         $originFile = tempnam(sys_get_temp_dir(), 'li');
         $targetFile = tempnam(sys_get_temp_dir(), 'li');
         if (true !== @link($originFile, $targetFile)) {
             $report = error_get_last();
             if (is_array($report) && false !== strpos($report['message'], 'error code(1314)')) {
                 self::$linkOnWindows = false;
             }
         } else {
             @unlink($targetFile);
         }
         self::$symlinkOnWindows = true;
         $originDir = tempnam(sys_get_temp_dir(), 'sl');
         $targetDir = tempnam(sys_get_temp_dir(), 'sl');
         if (true !== @symlink($originDir, $targetDir)) {
             $report = error_get_last();
             if (is_array($report) && false !== strpos($report['message'], 'error code(1314)')) {
                 self::$symlinkOnWindows = false;
             }
         } else {
             @unlink($targetDir);
         }
     }
 }

function build()
{
    $webappFile = null;
    $tomcatDir = "/var/lib/tomcat6/webapps";
    if (!is_dir($tomcatDir)) {
        echo "Starting......: " . date("H:i:s") . " C.A.S server failed `{$tomcatDir}` no such directory...\n";
        return;
    }
    $unix = new unix();
    $dirfiles = $unix->DirFiles("/usr/share/cas-server/modules", "cas-server-webapp-.*?\\.war");
    echo "Starting......: " . date("H:i:s") . " C.A.S server checking libraries...\n";
    echo "Starting......: " . date("H:i:s") . " C.A.S server TomCat webapps `{$tomcatDir}`\n";
    while (list($num, $line) = each($dirfiles)) {
        $webappFile = "/usr/share/cas-server/modules/{$num}";
    }
    if ($webappFile == null) {
        echo "Starting......: " . date("H:i:s") . " C.A.S server failed to retrive cas-server-webapp war file\n";
        return;
    }
    if (is_file("{$tomcatDir}/cas.war")) {
        @unlink("{$tomcatDir}/cas.war");
    }
    echo "Starting......: " . date("H:i:s") . " C.A.S server installing {$webappFile} into {$tomcatDir}..\n";
    @link($webappFile, "{$tomcatDir}/cas.war");
    writesettings();
    maven2();
    tomcat_config();
    log4jxml();
    if (is_file("/etc/init.d/tomcat6")) {
        echo "Starting......: " . date("H:i:s") . " C.A.S server restarting tomcat server...\n";
        shell_exec("/etc/init.d/tomcat6 restart >/dev/null 2>&1");
    }
    WEB_INF_deployerConfigContext();
    log4jxml();
}

/**
 * @param   string  $realFrom
 * @param   string  $realTo
 * @param   string  $type
 *
 * @throws Exception
 */
function systemlink_createLink($realFrom, $realTo, $type = 'symlink')
{
    if (IS_WINDOWS) {
        // Windows doesn't play nice with paths containing UNIX path separators
        $realTo = TranslateWinPath($realTo);
        $realFrom = TranslateWinPath($realFrom);
        // Windows doesn't play nice with relative paths in symlinks
        $realFrom = realpath($realFrom);
    }
    if (is_file($realTo) || is_dir($realTo) || is_link($realTo) || file_exists($realTo)) {
        if (IS_WINDOWS && is_dir($realTo)) {
            // Windows can't unlink() directory symlinks; it needs rmdir() to be used instead
            $res = @rmdir($realTo);
        } else {
            $res = @unlink($realTo);
        }
        if (!$res) {
            echo "FAILED UNLINK  : {$realTo}\n";
        }
    }
    if ($type == 'symlink') {
        $res = @symlink($realFrom, $realTo);
    } elseif ($type == 'link') {
        $res = @link($realFrom, $realTo);
    }
    if (!$res) {
        if ($type == 'symlink') {
            echo "FAILED SYMLINK : {$realTo}\n";
        } elseif ($type == 'link') {
            echo "FAILED LINK    : {$realTo}\n";
        }
    }
}

 protected function _link_file($path, $target, $link_directory)
 {
     $this->_check_dir($link_directory);
     if (!file_exists($link_directory . '/' . $target) && !link(dirname(__FILE__) . '/' . $path . '/' . $target, $link_directory . '/' . $target)) {
         $this->fail("Failed to create link " . $link_directory . '/' . $target);
     }
 }

 public static function link($from, $to)
 {
     if (is_dir($from) && PHP_OS == "WINNT") {
         exec("mklink /J {$to} {$from}");
         return;
     }
     link($from, $to);
 }

function cross_symlink($sourcePath, $targetPath)
{
    if (PHP_OS == "WINNT") {
        return link($sourcePath, $targetPath);
    } else {
        return symlink($sourcePath, $targetPath);
    }
}

 public static function link($source, $dest)
 {
     if (self::isProduction()) {
         return link($source, $dest);
     } else {
         return copy($source, $dest);
     }
 }

function hardlink_file($from, $to)
{
    if (defined('AKEEBA_RELINK_WINDOWS')) {
        $cmd = 'mklink /H "' . $to . '" "' . $from . '"';
        exec($cmd);
    } else {
        @link($from, $to);
    }
}

 /**
  * @param string $original
  * @param string $alias
  * @return bool
  * @throws Exceptions\FileSystemException
  */
 public static function hardSymLink($original, $alias)
 {
     if (!file_exists($original)) {
         throw new \Sonrisa\Component\FileSystem\Exceptions\FileSystemException("Cannot link {$original} because it does not exist.");
     }
     if (file_exists($alias)) {
         throw new \Sonrisa\Component\FileSystem\Exceptions\FileSystemException("Cannot create link {$alias} because a file, directory or link with this name already exists.");
     }
     return link($original, $alias);
 }

function duplicate($dir, $writable, $files, $verb = false)
{
    $base = '../' . $dir;
    $id = preg_replace('/^\\D+/', '', $dir);
    if (!empty($id)) {
        $id = intval($id);
    }
    if (!is_dir($base)) {
        mkdir($base);
    }
    $base .= '/';
    foreach (find_file() as $name) {
        if ($verb) {
            echo "  dup: {$name}\n";
        }
        if (is_dir($name)) {
            if (!@mkdir($base . $name)) {
                echo "mkdir error: {$name}\n";
            }
        } elseif (!@link($name, $base . $name)) {
            echo "link error: {$name}\n";
        }
    }
    foreach ($writable as $i) {
        $f = $base . $i;
        if ($verb) {
            echo "  writable: {$f}\n";
        }
        if (is_dir($f)) {
            chmod($f, 0777);
        } else {
            chmod($f, 0666);
        }
    }
    foreach ($files as $file => $dest) {
        $newfile = $base . preg_replace('/{prefix}/', $dir, $dest);
        $body = file_get_contents($file);
        if (preg_match('/\\.sql$/', $file)) {
            if ($verb) {
                echo "  {$file} -> {$newfile}\n";
            }
            $body = preg_replace('/\\s' . preg_quote(ORIGIN_NAME) . '([\\s_])/', " {$dir}\$1", $body);
        } elseif (preg_match('/\\.html$/', $file)) {
            $body = preg_replace('/' . preg_quote(ORIGIN_NAME) . '_/', $dir . "_", $body);
            if ($verb) {
                echo "  {$file} -> {$newfile}\n";
            }
        }
        file_put_contents($newfile, $body);
    }
}

 public function reload($rootPath = null)
 {
     global $neardBs, $neardConfig, $neardLang;
     $this->name = $neardLang->getValue(Lang::FILEZILLA);
     $this->version = $neardConfig->getRaw(self::ROOT_CFG_VERSION);
     $this->launchStartup = $neardConfig->getRaw(self::ROOT_CFG_LAUNCH_STARTUP) == Config::ENABLED;
     $this->rootPath = $rootPath == null ? $this->rootPath : $rootPath;
     $this->currentPath = $this->rootPath . '/filezilla' . $this->version;
     $this->neardConf = $this->currentPath . '/neard.conf';
     $this->logsPath = $this->currentPath . '/Logs';
     $this->log = $neardBs->getLogsPath() . '/filezilla.log';
     if (!is_dir($this->currentPath)) {
         Util::logError(sprintf($neardLang->getValue(Lang::ERROR_FILE_NOT_FOUND), $this->name . ' ' . $this->version, $this->currentPath));
     }
     if (!is_file($this->neardConf)) {
         Util::logError(sprintf($neardLang->getValue(Lang::ERROR_CONF_NOT_FOUND), $this->name . ' ' . $this->version, $this->neardConf));
     }
     // Create log hard link
     $log = $this->logsPath . '/FileZilla Server.log';
     if (!file_exists($this->log) && file_exists($log)) {
         @link($log, $this->log);
     }
     $this->neardConfRaw = parse_ini_file($this->neardConf);
     if ($this->neardConfRaw !== false) {
         $this->exe = $this->currentPath . '/' . $this->neardConfRaw[self::LOCAL_CFG_EXE];
         $this->conf = $this->currentPath . '/' . $this->neardConfRaw[self::LOCAL_CFG_CONF];
         $this->port = $this->neardConfRaw[self::LOCAL_CFG_PORT];
         $this->sslPort = $this->neardConfRaw[self::LOCAL_CFG_SSL_PORT];
     }
     if (!is_file($this->exe)) {
         Util::logError(sprintf($neardLang->getValue(Lang::ERROR_EXE_NOT_FOUND), $this->name . ' ' . $this->version, $this->exe));
     }
     if (!is_file($this->conf)) {
         Util::logError(sprintf($neardLang->getValue(Lang::ERROR_CONF_NOT_FOUND), $this->name . ' ' . $this->version, $this->conf));
     }
     if (!is_numeric($this->port) || $this->port <= 0) {
         Util::logError(sprintf($neardLang->getValue(Lang::ERROR_INVALID_PARAMETER), self::LOCAL_CFG_PORT, $this->port));
     }
     if (!is_numeric($this->sslPort) || $this->sslPort <= 0) {
         Util::logError(sprintf($neardLang->getValue(Lang::ERROR_INVALID_PARAMETER), self::LOCAL_CFG_SSL_PORT, $this->sslPort));
     }
     $this->service = new Win32Service(self::SERVICE_NAME);
     $this->service->setDisplayName(APP_TITLE . ' ' . $this->getName() . ' ' . $this->version);
     $this->service->setBinPath($this->exe);
     $this->service->setStartType(Win32Service::SERVICE_DEMAND_START);
     $this->service->setErrorControl(Win32Service::SERVER_ERROR_NORMAL);
 }

 public function run($overwrite = true)
 {
     foreach ($this->_links as $key => $link) {
         if (file_exists($link['to'])) {
             if ($overwrite) {
                 unlink($link['to']);
                 link($link['fr'], $link['to']);
                 $this->_links[$key]['message'] = 'sucess (removed old file)';
             } else {
                 $this->_links[$key]['message'] = 'file exists';
             }
         } else {
             link($link['fr'], $link['to']);
             $this->_links[$key]['message'] = 'success';
         }
     }
 }

function hardlink_file($from, $to)
{
    if (file_exists($to)) {
        if (defined('AKEEBA_RELINK_WINDOWS')) {
            $cmd = 'del /f /q "' . $to . '"';
        } else {
            $cmd = 'rm -f "' . $to . '"';
        }
        exec($cmd);
    }
    if (defined('AKEEBA_RELINK_WINDOWS')) {
        $cmd = 'mklink /H "' . $to . '" "' . $from . '"';
        exec($cmd);
    } else {
        @link($from, $to);
    }
}

 public function testDelete()
 {
     // Initialization
     $_SESSION['id'] = 1;
     $phpunit = array('isTest' => true);
     include dirname(__FILE__) . '/../index.php';
     //Test delete photo from one album
     $db->query('INSERT INTO images (ownerId, name, filename, extension, created, description) VALUES ("1", "", "flamingo","jpg", CURRENT_TIMESTAMP(),"")');
     $newImageId = mysql_insert_id();
     $db->query('INSERT INTO imagesToAlbums (albumId, imageId, positionInAlbum) VALUES ("1", "' . $newImageId . '", "1")');
     $target = dirname(__FILE__) . '/data/uploadTest/flamingos.jpg';
     // Ceci est le fichier qui existe actuellement
     $link = dirname(__FILE__) . '/../data/images/' . $newImageId . '.jpg';
     // Ceci sera le nom du fichier que vous voulez lier
     @link($target, $link);
     $_GET = array('id' => $newImageId);
     $_POST = array('Delete' => true, 'album' => array(1));
     include dirname(__FILE__) . '/../pages/view/photoDelete.php';
     $results = mysql_num_rows($db->query('SELECT * FROM images'));
     $this->assertEquals('1', $results);
     //Test delete photo from one album but existing in two
     $db->query('INSERT INTO images (ownerId, name, filename, extension, created, description) VALUES ("1", "", "flamingo","jpg", CURRENT_TIMESTAMP(),"")');
     $newImageId = mysql_insert_id();
     $db->query('INSERT INTO imagesToAlbums (albumId, imageId, positionInAlbum) VALUES ("1", "' . $newImageId . '", "1")');
     $db->query('INSERT INTO imagesToAlbums (albumId, imageId, positionInAlbum) VALUES ("3", "' . $newImageId . '", "1")');
     $target = dirname(__FILE__) . '/data/uploadTest/flamingos.jpg';
     // Ceci est le fichier qui existe actuellement
     $link = dirname(__FILE__) . '/../data/images/' . $newImageId . '.jpg';
     // Ceci sera le nom du fichier que vous voulez lier
     @link($target, $link);
     $_GET = array('id' => $newImageId);
     $_POST = array('Delete' => true, 'album' => array(1));
     include dirname(__FILE__) . '/../pages/view/photoDelete.php';
     $results = mysql_num_rows($db->query('SELECT * FROM images'));
     $this->assertEquals('2', $results);
     //Test delete photo from two album, photo in only two albums
     $db->query('INSERT INTO imagesToAlbums (albumId, imageId, positionInAlbum) VALUES ("1", "' . $newImageId . '", "1")');
     $_GET = array('id' => $newImageId);
     $_POST = array('Delete' => true, 'album' => array(1, 3));
     include dirname(__FILE__) . '/../pages/view/photoDelete.php';
     $results = mysql_num_rows($db->query('SELECT * FROM images'));
     $this->assertEquals('1', $results);
 }