PHP启动：无法加载dynamic库`curl.so` Ubuntu

PHP警告：PHP启动：无法加载dynamic库'/usr/lib/php/20131226/curl.so' – /usr/lib/php/20131226/curl.so：未定义的符号：zend_unset_property在未知的行0

我使用的是Ubuntu 14.04 LTS和PHP v5.6

在同一台机器php5和php7有其他版本，但php5.6已启用。 我试图通过安装cURL

 sudo apt-get install php5.6-curl 

现在我越来越

• 清空PHP POSTvariables
• 通过404而不是403拒绝
• mod-rewrite从url中删除文件夹名称
• 如何通过apache VFS使用JCIFS访问SMB URL？
• 你如何重新启动Apache（网页）button点击？

无法加载dynamic库curl.so

运行php -i | grep ini php -i | grep ini我得到以下

 root@ubuntu:/etc/php/5.6/apache2# php -i | grep ini PHP Warning: PHP Startup: Unable to load dynamic library '/usr/lib/php/20131226/curl.so' - /usr/lib/php/20131226/curl.so: undefined symbol: zend_unset_property in Unknown on line 0 Configuration File (php.ini) Path => /etc/php/5.6/cli Loaded Configuration File => /etc/php/5.6/cli/php.ini Scan this dir for additional .ini files => /etc/php/5.6/cli/conf.d Additional .ini files parsed => /etc/php/5.6/cli/conf.d/10-mysqlnd.ini, /etc/php/5.6/cli/conf.d/10-opcache.ini, /etc/php/5.6/cli/conf.d/10-pdo.ini, /etc/php/5.6/cli/conf.d/15-xml.ini, /etc/php/5.6/cli/conf.d/20-calendar.ini, /etc/php/5.6/cli/conf.d/20-ctype.ini, /etc/php/5.6/cli/conf.d/20-curl.ini, /etc/php/5.6/cli/conf.d/20-dom.ini, /etc/php/5.6/cli/conf.d/20-exif.ini, /etc/php/5.6/cli/conf.d/20-fileinfo.ini, /etc/php/5.6/cli/conf.d/20-ftp.ini, /etc/php/5.6/cli/conf.d/20-gettext.ini, /etc/php/5.6/cli/conf.d/20-iconv.ini, /etc/php/5.6/cli/conf.d/20-json.ini, /etc/php/5.6/cli/conf.d/20-mbstring.ini, /etc/php/5.6/cli/conf.d/20-mysql.ini, /etc/php/5.6/cli/conf.d/20-mysqli.ini, /etc/php/5.6/cli/conf.d/20-pdo_mysql.ini, /etc/php/5.6/cli/conf.d/20-phar.ini, /etc/php/5.6/cli/conf.d/20-posix.ini, /etc/php/5.6/cli/conf.d/20-readline.ini, /etc/php/5.6/cli/conf.d/20-shmop.ini, /etc/php/5.6/cli/conf.d/20-simplexml.ini, /etc/php/5.6/cli/conf.d/20-sockets.ini, /etc/php/5.6/cli/conf.d/20-sysvmsg.ini, /etc/php/5.6/cli/conf.d/20-sysvsem.ini, /etc/php/5.6/cli/conf.d/20-sysvshm.ini, /etc/php/5.6/cli/conf.d/20-tokenizer.ini, /etc/php/5.6/cli/conf.d/20-wddx.ini, /etc/php/5.6/cli/conf.d/20-xmlreader.ini, /etc/php/5.6/cli/conf.d/20-xmlwriter.ini, /etc/php/5.6/cli/conf.d/20-xsl.ini user_ini.cache_ttl => 300 => 300 user_ini.filename => .user.ini => .user.ini init_command_executed_count => 0 init_command_failed_count => 0 com_init_db => 0 Classes => AppendIterator, ArrayIterator, ArrayObject, BadFunctionCallException, BadMethodCallException, CachingIterator, CallbackFilterIterator, DirectoryIterator, DomainException, EmptyIterator, FilesystemIterator, FilterIterator, GlobIterator, InfiniteIterator, InvalidArgumentException, IteratorIterator, LengthException, LimitIterator, LogicException, MultipleIterator, NoRewindIterator, OutOfBoundsException, OutOfRangeException, OverflowException, ParentIterator, RangeException, RecursiveArrayIterator, RecursiveCachingIterator, RecursiveCallbackFilterIterator, RecursiveDirectoryIterator, RecursiveFilterIterator, RecursiveIteratorIterator, RecursiveRegexIterator, RecursiveTreeIterator, RegexIterator, RuntimeException, SplDoublyLinkedList, SplFileInfo, SplFileObject, SplFixedArray, SplHeap, SplMinHeap, SplMaxHeap, SplObjectStorage, SplPriorityQueue, SplQueue, SplStack, SplTempFileObject, UnderflowException, UnexpectedValueException 

这是实际的警告

PHP警告：PHP启动：无法加载dynamic库'/usr/lib/php/20131226/curl.so' – /usr/lib/php/20131226/curl.so：未定义的符号：zend_unset_property在未知的行0

还检查了cURL不工作。 任何forms的帮助，高度赞赏。