【yii2从Apache迁移到nginx上访问报500错误】
今天迁移yii2项目从Apache到nginx，出现了几个小问题，记录一下
index.php 加上
error_reporting(E_ERROR); ini_set('display_errors', 'yes');
来临时打开错误级别和错误显示，500 是内部错误，一般是程序有问题。
用ip从目录访问不报错，最后看到了域名的.conf配置文件open_basedir=$document_root字段，也就是说把活动限制在了web目录下，
直接从直接从nginx.conf拿出的一段server{} 放在vhost/xxxx.conf里面，没有注意到open_basedir，于是注释掉了这句配置文件
nginx在server{}中加了伪静态配置
location / {
if (!-e $request_filename){
rewrite ^/(.*) /index.php last;
}
}
页面能打开，刷新一下变成500，再刷新两下又能打开，再刷新又是500状态，如此循环。
nginx拿到错误日志，一下报三条。
2016/04/22 20:56:18 [error] 28923#0: *558 FastCGI sent in stderr: "PHP message: PHP Warning: realpath(): open_basedir restriction in effect. File(/home/wwwroot/php/zlxoc/trunk/admin) is not within the allowed path(s): (/home/wwwroot/php/zlxoc/trunk/admin/web:/tmp/:/proc/) in /home/wwwroot/php/zlxoc/trunk/vendor/yiisoft/yii2/base/Module.php on line 220
PHP message: PHP Stack trace:
PHP message: PHP 1. {main}() /home/wwwroot/php/zlxoc/trunk/admin/web/index.php:0
PHP message: PHP 2. yiiaseApplication->__construct() /home/wwwroot/php/zlxoc/trunk/admin/web/index.php:17
PHP message: PHP 3. yiiaseApplication->preInit() /home/wwwroot/php/zlxoc/trunk/vendor/yiisoft/yii2/base/Application.php:202
PHP message: PHP 4. yiiaseApplication->setBasePath() /home/wwwroot/php/zlxoc/trunk/vendor/yiisoft/yii2/base/Application.php:223
PHP message: PHP 5. yiiaseModule->setBasePath() /home/wwwroot/php/zlxoc/trunk/vendor/yiisoft/yii2/base/Application.php:358
PHP message: PHP 6. realpath() /home/wwwroot/php/zlxoc/trunk/vendor/yiisoft/yii2/base/Module.php:220
PHP message: PHP Warning: include(): open_basedir restriction in effect. File(/home/wwwroot/php/zlxoc/trunk/vendor/yiisoft/yii2/base/InvalidParamException.php) is not within the allowed path(s): (/home/wwwroot/php/zlxoc/trunk/admin/web:/tmp/:/proc/) in /home/wwwroot/php/zlxoc/trunk/vendor/yiisoft/yii2/BaseYii.php on line 288
PHP message: PHP Stack trace:
PHP message: PHP 1. {main}() /home/wwwroot/php/zlxoc/trunk/admin/web/index.php:0
PHP message: PHP 2. yiiaseApplication->__construct() /home/wwwroot/php/zlxoc/trunk/admin/web/index.php:17
PHP message: PHP 3. yiiaseApplication->preInit() /home/wwwroot/php/zlxoc/trunk/vendor/yiisoft/yii2/base/Application.php:202
PHP message: PHP 4. yiiaseApplication->setBasePath() /home/wwwroot/php/zlxoc/trunk/vendor/yiisoft/yii2/base/Application.php:223
PHP message: PHP 5. yiiaseModule->setBasePath() /home/wwwroot/php/zlxoc/trunk/vendor/yiisoft/yii2/base/Application.php:358
PHP message: PHP 6. spl_autoloa
2016/04/22 20:56:18 [error] 28923#0: *558 FastCGI sent in stderr: "nk/vendor/yiisoft/yii2/base/Application.php:358
PHP message: PHP 6. spl_autoload_call() /home/wwwroot/php/zlxoc/trunk/vendor/yiisoft/yii2/base/Application.php:224
PHP message: PHP 7. yiiBaseYii::autoload() /home/wwwroot/php/zlxoc/trunk/vendor/yiisoft/yii2/base/Application.php:0
PHP message: PHP Warning: include(): open_basedir restriction in effect. File(/home/wwwroot/php/zlxoc/trunk/vendor/yiisoft/yii2/base/UnknownClassException.php) is not within the allowed path(s): (/home/wwwroot/php/zlxoc/trunk/admin/web:/tmp/:/proc/) in /home/wwwroot/php/zlxoc/trunk/vendor/yiisoft/yii2/BaseYii.php on line 288
PHP message: PHP Stack trace:
PHP message: PHP 1. {main}() /home/wwwroot/php/zlxoc/trunk/admin/web/index.php:0
PHP message: PHP 2. yiiaseApplication->__construct() /home/wwwroot/php/zlxoc/trunk/admin/web/index.php:17
PHP message: PHP 3. yiiaseApplication->preInit() /home/wwwroot/php/zlxoc/trunk/vendor/yiisoft/yii2/base/Application.php:202
PHP message: PHP 4. yiiaseApplication->setBasePath() /home/wwwroot/php/zlxoc/trunk/vendor/yiisoft/yii2/base/Application.php:223
PHP message: PHP 5. yiiaseModule->setBasePath() /home/wwwroot/php/zlxoc/trunk/vendor/yiisoft/yii2/base/Application.php:358
PHP message: PHP 6. spl_autoload_call() /home/wwwroot/php/zlxoc/trunk/vendor/yiisoft/yii2/base/Application.php:224
PHP message: PHP 7. yiiBaseYii::autoload() /home/wwwroot/php/zlxoc/trunk/vendor/yiisoft/yii2/base/Application.php:0
PHP message: PHP 8. spl_autoload_call() /home/wwwroot/php/zlxoc/trunk/vendor/yiisoft/yii2/base/Application.php:291
PHP message: PHP 9. yiiBaseYii::autoload() /home/wwwroot/php/zlxoc/trunk/vendor/yiisoft/yii2/base/Application.php:0
PHP message: PHP Warning: include(/home/wwwroot/php/zlxoc/trunk/vendor/yiisoft/yii2/base/UnknownClassException.php): failed to open stream: Operation not permitted in /home/wwwroot/php/zlxoc/trunk/vendor/yiisoft/yii2/BaseYii.php on line 288
PHP message: PHP Stack trace:
PHP messag
2016/04/22 20:56:18 [error] 28923#0: *558 FastCGI sent in stderr: "ii2/base/Application.php:0
PHP message: PHP 8. spl_autoload_call() /home/wwwroot/php/zlxoc/trunk/vendor/yiisoft/yii2/base/Application.php:291
PHP message: PHP 9. yiiBaseYii::autoload() /home/wwwroot/php/zlxoc/trunk/vendor/yiisoft/yii2/base/Application.php:0
PHP message: PHP Fatal error: Class 'yiiaseUnknownClassException' not found in /home/wwwroot/php/zlxoc/trunk/vendor/yiisoft/yii2/BaseYii.php on line 291
PHP message: PHP Stack trace:
PHP message: PHP 1. {main}() /home/wwwroot/php/zlxoc/trunk/admin/web/index.php:0
PHP message: PHP 2. yiiaseApplication->__construct() /home/wwwroot/php/zlxoc/trunk/admin/web/index.php:17
PHP message: PHP 3. yiiaseApplication->preInit() /home/wwwroot/php/zlxoc/trunk/vendor/yiisoft/yii2/base/Application.php:202
PHP message: PHP 4. yiiaseApplication->setBasePath() /home/wwwroot/php/zlxoc/trunk/vendor/yiisoft/yii2/base/Application.php:223
PHP message: PHP 5. yiiaseModule->setBasePath() /home/wwwroot/php/zlxoc/trunk/vendor/yiisoft/yii2/base/Application.php:358
PHP message: PHP 6. spl_autoload_call() /home/wwwroot/php/zlxoc/trunk/vendor/yiisoft/yii2/base/Application.php:224
PHP message: PHP 7. yiiBaseYii::autoload() /home/wwwroot/php/zlxoc/trunk/vendor/yiisoft/yii2/base/Application.php:0
PHP message: PHP 8. spl_autoload_call() /home/wwwroot/php/zlxoc/trunk/vendor/yiisoft/yii2/base/Application.php:291
PHP message: PHP 9. yiiBaseYii::autoload() /home/wwwroot/php/zlxoc/trunk/vendor/yiisoft/yii2/base/Application.php:0" while reading response header from upstream, client: 192.168.26.97, server: admin.zlxoc.com, request: "GET /weixin/test.html HTTP/1.1", upstream: "fastcgi://127.0.0.1:9000", host: "admin.zlxoc.com"
看过日志中间的问题，基本上锁定了一会儿200，一会儿500状态的根源在哪里，还是在open_basedir 上面。
于是重新开启把路径限制在项目根目录下，/etc/init.d/nginx restart ,不再出现此问题