1. 安装：

   yum  -y  install  php  php-devel  php-pear  php-mysql  php-gd  php-mbstring  libevent  libevent-devel

2. 安装libevent扩展：
   a. 下载：

   wget  http://pecl.php.net/get/libevent-0.1.0.tgz

   b. 解压：

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   tar  -xzf  libevent-0.1.0.tgz

   c. 进入目录：

   cd  libevent-0.1.0

   d. 编译：

   phpize
   ./configure  --with-php-config=/usr/bin/php-config

   e. 安装：

   make  &&  make install

   f. 开启扩展：
   vim /etc/php.ini，添加

   [libevent]
   extension=libevent.so

   g. 测试：

   php  -m  |  grep  event

   

3. 配置：
   vim /etc/php.ini

   display_errors = on  #  允许php报告错误
   upload_max_filesize = 20M  #  上传文件大小限制
   memory_limit = 512M  #  内存使用量
   default_socket_timeout = 9999999999999  #  脚本超时时间，设置为无限大
   date.timezone = PRC  #  修改时区为中国
   default_charset = "utf8"  #  修改默认字符集为utf8

4. 完整配置文件参考：

   [PHP]
   engine = On
   short_open_tag = Off
   asp_tags = Off
   precision = 14
   output_buffering = 4096
   zlib.output_compression = Off
   implicit_flush = Off
   unserialize_callback_func =
   serialize_precision = 17
   disable_functions =
   disable_classes =
   zend.enable_gc = On
   expose_php = On
   max_execution_time = 30
   max_input_time = 60
   memory_limit = 512M
   error_reporting = E_ALL & ~E_DEPRECATED & ~E_STRICT
   display_errors = on
   display_startup_errors = Off
   log_errors = On
   log_errors_max_len = 1024
   ignore_repeated_errors = Off
   ignore_repeated_source = Off
   report_memleaks = On
   track_errors = Off
   html_errors = On
   variables_order = "GPCS"
   request_order = "GP"
   register_argc_argv = Off
   auto_globals_jit = On
   post_max_size = 8M
   auto_prepend_file =
   auto_append_file =
   default_mimetype = "text/html"
   doc_root =
   user_dir =
   enable_dl = Off
   file_uploads = On
   upload_max_filesize = 20M
   max_file_uploads = 20
   allow_url_fopen = On
   allow_url_include = Off
   default_socket_timeout = 9999999999999
   default_charset = "utf8"
   [CLI Server]
   cli_server.color = On
   [Date]
   date.timezone = PRC
   [filter]
   [iconv]
   [intl]
   [sqlite]
   [sqlite3]
   [Pcre]
   [Pdo]
   [Pdo_mysql]
   pdo_mysql.cache_size = 2000
   pdo_mysql.default_socket=
   [Phar]
   [mail function]
   SMTP = localhost
   smtp_port = 25
   sendmail_path = /usr/sbin/sendmail -t -i
   mail.add_x_header = On
   [SQL]
   sql.safe_mode = Off
   [ODBC]
   odbc.allow_persistent = On
   odbc.check_persistent = On
   odbc.max_persistent = -1
   odbc.max_links = -1
   odbc.defaultlrl = 4096
   odbc.defaultbinmode = 1
   [Interbase]
   ibase.allow_persistent = 1
   ibase.max_persistent = -1
   ibase.max_links = -1
   ibase.timestampformat = "%Y-%m-%d %H:%M:%S"
   ibase.dateformat = "%Y-%m-%d"
   ibase.timeformat = "%H:%M:%S"
   [MySQL]
   mysql.allow_local_infile = On
   mysql.allow_persistent = On
   mysql.cache_size = 2000
   mysql.max_persistent = -1
   mysql.max_links = -1
   mysql.default_port =
   mysql.default_socket =
   mysql.default_host =
   mysql.default_user =
   mysql.default_password =
   mysql.connect_timeout = 60
   mysql.trace_mode = Off
   [MySQLi]
   mysqli.max_persistent = -1
   mysqli.allow_persistent = On
   mysqli.max_links = -1
   mysqli.cache_size = 2000
   mysqli.default_port = 3306
   mysqli.default_socket =
   mysqli.default_host =
   mysqli.default_user =
   mysqli.default_pw =
   mysqli.reconnect = Off
   [mysqlnd]
   mysqlnd.collect_statistics = On
   mysqlnd.collect_memory_statistics = Off
   [OCI8]
   [PostgreSQL]
   pgsql.allow_persistent = On
   pgsql.auto_reset_persistent = Off
   pgsql.max_persistent = -1
   pgsql.max_links = -1
   pgsql.ignore_notice = 0
   pgsql.log_notice = 0
   [Sybase-CT]
   sybct.allow_persistent = On
   sybct.max_persistent = -1
   sybct.max_links = -1
   sybct.min_server_severity = 10
   sybct.min_client_severity = 10
   [bcmath]
   bcmath.scale = 0
   [browscap]
   [Session]
   session.save_handler = files
   session.use_cookies = 1
   session.use_only_cookies = 1
   session.name = PHPSESSID
   session.auto_start = 0
   session.cookie_lifetime = 0
   session.cookie_path = /
   session.cookie_domain =
   session.cookie_httponly =
   session.serialize_handler = php
   session.gc_probability = 1
   session.gc_divisor = 1000
   session.gc_maxlifetime = 1440
   session.bug_compat_42 = Off
   session.bug_compat_warn = Off
   session.referer_check =
   session.cache_limiter = nocache
   session.cache_expire = 180
   session.use_trans_sid = 0
   session.hash_function = 0
   session.hash_bits_per_character = 5
   url_rewriter.tags = "a=href,area=href,frame=src,input=src,form=fakeentry"
   [MSSQL]
   mssql.allow_persistent = On
   mssql.max_persistent = -1
   mssql.max_links = -1
   mssql.min_error_severity = 10
   mssql.min_message_severity = 10
   mssql.compatability_mode = Off
   mssql.secure_connection = Off
   [Assertion]
   [mbstring]
   [gd]
   [exif]
   [Tidy]
   tidy.clean_output = Off
   [soap]
   soap.wsdl_cache_enabled=1
   soap.wsdl_cache_dir="/tmp"
   soap.wsdl_cache_ttl=86400
   soap.wsdl_cache_limit = 5
   [sysvshm]
   [ldap]
   ldap.max_links = -1
   [mcrypt]
   [dba]
   [libevent]
   extension=libevent.so

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