PHP警告：PHP启动：无法加载动态库"/usr/lib/php/20131226/curl.so"-/usr/lib/php/20131226/corl.so：未定义的符号：第0行未知中的zend_unset_property
我使用的是Ubuntu 14.04 LTS和PHP v5.6
在同一台机器php5和php7中有其他版本，但php5.6已启用。我尝试通过安装cURL
sudo apt-get install php5.6-curl
现在我得到
无法加载动态库curl.so
运行php -i | grep ini后，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：无法加载动态库"/usr/lib/php/20131226/curl.so"-/usr/lib/php/20131226/corl.so：未定义的符号：第0行未知中的zend_unset_property
还检查了cURL是否不工作。任何形式的帮助都将不胜感激。
将php5.6(-common(更新到新版本。这可以使用apt-get update && apt-get upgrade来完成。您刚刚将php5.6-curl更新到最新版本，但它依赖于更新的php5.6。
如果有人在php 7.0中遇到同样的问题。我用sudo apt-get remove "curl"删除了旧的"curl"，并用sudo apt-get install php7.0-curl安装了php7.0版本。
消息现在不见了，一切都很好。
php7上也有同样的问题。刚刚做了一个apt-get dist-upgrade，现在警告消失了，curl工作正常。希望它能有所帮助！
我通过运行"sudo apt-get update"命令之后：
sudo apt-get-install php curl