Question

我尝试安装MongoDB PHP库时遇到错误：

$ composer require "mongodb/mongodb=^1.0.0"

PHP Warning:  PHP Startup: Unable to load dynamic library '/usr/lib/php/20151012/mongodb.so' - /usr/lib/php/20151012/mongodb.so: undefined symbol: php_json_serializable_ce in Unknown on line 0
PHP Warning:  PHP Startup: Unable to load dynamic library '/usr/lib/php/20151012/mongodb.so' - /usr/lib/php/20151012/mongodb.so: undefined symbol: php_json_serializable_ce in Unknown on line 0
PHP Warning:  PHP Startup: Unable to load dynamic library '/usr/lib/php/20151012/mongodb.so' - /usr/lib/php/20151012/mongodb.so: undefined symbol: php_json_serializable_ce in Unknown on line 0
PHP Warning:  PHP Startup: Unable to load dynamic library '/usr/lib/php/20151012/mongodb.so' - /usr/lib/php/20151012/mongodb.so: undefined symbol: php_json_serializable_ce in Unknown on line 0

当我执行phpinfo()时，我可以看到以下内容：

mongodb

mongodb support enabled
mongodb version 1.2.1
mongodb stability   stable
libmongoc version   1.5.0
libbson version 1.5.0

当我执行定位mongodb.so时，我的mongodb.so文件位于：

/usr/lib/php/20151012/mongodb.so

我可以注意到，这是20-mongodb.ini文件所在的路径：

/etc/php/7.0/apache2/conf.d

此外，sudo pecl mongodb install会返回以下内容：

PHP Warning:  PHP Startup: Unable to load dynamic library '/usr/lib/php/20151012/mongodb.so' - /usr/lib/php/20151012/mongodb.so: undefined symbol: php_json_serializable_ce in Unknown on line 0
PHP Warning:  PHP Startup: Unable to load dynamic library '/usr/lib/php/20151012/mongodb.so' - /usr/lib/php/20151012/mongodb.so: undefined symbol: php_json_serializable_ce in Unknown on line 0
PHP Warning:  PHP Startup: Unable to load dynamic library '/usr/lib/php/20151012/mongodb.so' - /usr/lib/php/20151012/mongodb.so: undefined symbol: php_json_serializable_ce in Unknown on line 0
PHP Warning:  PHP Startup: Unable to load dynamic library '/usr/lib/php/20151012/mongodb.so' - /usr/lib/php/20151012/mongodb.so: undefined symbol: php_json_serializable_ce in Unknown on line 0

sudo pecl info mongodb返回：

About pecl.php.net/mongodb-1.2.1
================================
Release Type          PECL-style PHP extension (source code)
Name                  mongodb
Channel               pecl.php.net
Summary               MongoDB driver for PHP
Description           The purpose of this driver is to provide
                      exceptionally thin glue between MongoDB
                      and PHP, implementing only fundemental and
                      performance-critical components
                      necessary to build a fully-functional MongoDB
                      driver.
Maintainers           Hannes Magnusson <bjori@php.net> (lead)
                      Jeremy Mikola <jmikola@php.net> (lead)
                      Derick Rethans <derick@php.net> (lead)
Release Date          2016-12-07 18:25:03
Release Version       1.2.1 (stable)
API Version           1.2.1 (stable)
License               Apache License
                      (http://www.apache.org/licenses/LICENSE-2.0)
Release Notes         ** Bug
                          * [PHPC-848] - Fix BSON encoding of
                      immutable arrays and documents with circular
                      references
Required Dependencies PHP version 5.4.0-7.99.99
                      PEAR installer version 1.4.8 or newer
package.xml version   2.0
Last Modified         2016-12-09 00:28
Previous Installed    1.2.0
Version

我在Google上搜索了几个小时，但仍然没有。谢谢。

Answer 1

是的，有很好的答案。这是我在php7.1中安装mongo所做的。我使用的是ubuntu16.04 64位：

sudo aptitude install -y php7.1-dev pkg-config
sudo -H pecl channel-update pecl.php.net
sudo aptitude install -y libcurl4-openssl-dev pkg-config libssl-dev libsslcommon2-dev
sudo pecl install mongodb
echo 'extension=mongodb.so' | sudo tee /etc/php/7.1/fpm/conf.d/30-mongodb.ini
echo 'extension=mongodb.so' | sudo tee /etc/php/7.1/cli/conf.d/30-mongodb.ini
sudo systemctl restart php7.1-fpm.service

这一切都适用于nginx。如果您使用的是apache，请添加：

echo 'extension=mongodb.so' | sudo tee /etc/php/7.1/apache2/conf.d/30-mongodb.ini

还有一个。如果在使用mongo时仍然出错。这样的事情：

PHP Warning:  PHP Startup: Unable to load dynamic library '/usr/lib/php/20160303/mongodb.so' - libssl.so.1.0.2: cannot open shared object file: No such file or directory in Unknown on line 0

不要绝望，请运行以下命令：

sudo pecl uninstall mongodb
sudo pecl install mongodb

Answer 2

首先输入此命令/usr/bin/php-config以查看扩展目录的位置您会看到类似--extension-dir [/usr/lib/php/20131226]的内容比该文件夹中的ls更多，看看mongo.so是否存在，如果没有，请将其放在那里输入whereis php以找到您在CLI中使用的php 编辑CLI的php.ini并添加extension=mongo.so

Answer 3

使用1.1.9 mongodb版本：

sudo pecl uninstall mongodb
sudo pecl install mongodb-1.1.9
composer update

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