CentOS 7中查看PHP运行时的Log文件日志信息

对于服务器上面运行的PHP代码，期间的log输出到哪里。

想要去查看对应的log，找到代码无法运行的原因。

【折腾过程】

1.搜：

check php log

centos check php log

参考：

Where does PHP store the error log? – Stack Overflow

apache2 – Where are the Apache and PHP log files? – Ask Ubuntu

去看看：

自己此处的/var/log/下面没有apache2或apache

 

2.通过：

phpinfo()

去找error_log

结果得到：

error_log

no value

no value

3.所以去设置php.ini的log日志：

【已解决】CentOS 7中PHP配置文件php.ini的放在哪个位置

4.然后去编辑php.ini，添加对应的error_log

vi /etc/php.ini

把：

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; Log errors to specified file. PHP's default behavior is to leave this value ; empty. ; http://php.net/error-log ; Example: ;error_log = php_errors.log ; Log errors to syslog (Event Log on NT, not valid in Windows 95). ;error_log = syslog

改为：

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; Log errors to specified file. PHP's default behavior is to leave this value ; empty. ; http://php.net/error-log ; Example: error_log = /var/log/php_errors.log ; Log errors to syslog (Event Log on NT, not valid in Windows 95). ;error_log = syslog

5.同时把：

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; error_reporting ;   Default Value: E_ALL & ~E_NOTICE & ~E_STRICT & ~E_DEPRECATED ;   Development Value: E_ALL ;   Production Value: E_ALL & ~E_DEPRECATED & ~E_STRICT ...... ;                     and forward compatibility of your code ; E_CORE_ERROR      - fatal errors that occur during PHP's initial startup ; E_CORE_WARNING    - warnings (non-fatal errors) that occur during PHP's ;                     initial startup ; E_COMPILE_ERROR   - fatal compile-time errors ; E_COMPILE_WARNING - compile-time warnings (non-fatal errors) ; E_USER_ERROR      - user-generated error message ; E_USER_WARNING    - user-generated warning message ; E_USER_NOTICE     - user-generated notice message ; E_DEPRECATED      - warn about code that will not work in future versions ;                     of PHP ; E_USER_DEPRECATED - user-generated deprecation warnings ; ; Common Values: ;   E_ALL (Show all errors, warnings and notices including coding standards.) ;   E_ALL & ~E_NOTICE  (Show all errors, except for notices) ;   E_ALL & ~E_NOTICE & ~E_STRICT  (Show all errors, except for notices and coding standards warnings.) ;   E_COMPILE_ERROR|E_RECOVERABLE_ERROR|E_ERROR|E_CORE_ERROR  (Show only errors) ; Default Value: E_ALL & ~E_NOTICE & ~E_STRICT & ~E_DEPRECATED ; Development Value: E_ALL ; Production Value: E_ALL & ~E_DEPRECATED & ~E_STRICT ; http://php.net/error-reporting error_reporting = E_ALL & ~E_DEPRECATED & ~E_STRICT

改为：

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1 2	#error_reporting = E_ALL & ~E_DEPRECATED & ~E_STRICT error_reporting = E_ALL | E_STRICT

6.再去添加读写权限：

cd  /var/log

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root@chantyou:log# pwd /var/log root@chantyou:log# touch /var/log/php_errors.log root@chantyou:log# ls /var/log/php_errors.log -l -rw-r--r-- 1 root root 0 Jul 28 16:03 /var/log/php_errors.log root@chantyou:log# chmod +rw /var/log/php_errors.log root@chantyou:log# ls /var/log/php_errors.log -l     -rw-r--r-- 1 root root 0 Jul 28 16:03 /var/log/php_errors.log root@chantyou:log#

此处由于都是root用户，所以和没添加一样。。。

7.然后重启apache2：

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root@chantyou:log# service httpd restart Redirecting to /bin/systemctl restart  httpd.service root@chantyou:log# service httpd status Redirecting to /bin/systemctl status  httpd.service httpd.service - The Apache HTTP Server    Loaded: loaded (/usr/lib/systemd/system/httpd.service; disabled)    Active: active (running) since Tue 2015-07-28 16:05:13 CST; 7s ago   Process: 6858 ExecStop=/bin/kill -WINCH ${MAINPID} (code=exited, status=0/SUCCESS)   Process: 2224 ExecReload=/usr/sbin/httpd $OPTIONS -k graceful (code=exited, status=0/SUCCESS)  Main PID: 6864 (httpd)    Status: "Processing requests..."    CGroup: /system.slice/httpd.service            ├─6864 /usr/sbin/httpd -DFOREGROUND            ├─6866 /usr/sbin/httpd -DFOREGROUND            ├─6867 /usr/sbin/httpd -DFOREGROUND            ├─6868 /usr/sbin/httpd -DFOREGROUND            ├─6869 /usr/sbin/httpd -DFOREGROUND            └─6870 /usr/sbin/httpd -DFOREGROUND   Jul 28 16:05:13 chantyou.com httpd[6864]: AH00548: NameVirtualHost has no effect and will be removed in the next release /e...conf:1 Jul 28 16:05:13 chantyou.com httpd[6864]: AH00558: httpd: Could not reliably determine the server's fully qualified domain ...essage Jul 28 16:05:13 chantyou.com systemd[1]: Started The Apache HTTP Server. Hint: Some lines were ellipsized, use -l to show in full. root@chantyou:log#

8.看看有无log输出了：

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1 2	root@chantyou:log# tail /var/log/php_errors.log root@chantyou:log#

结果空的。

那就继续去测试其他php，如果出错了，希望此处可以看到错误的log日志。

9.然后，也确定了phpinfo()中是可以看到有错误日志的配置了：

error_log

/var/log/php_errors.log

/var/log/php_errors.log

 

【总结】

暂时反正是设置了PHP的错误日志，但是实际上后续的一些错误，比如代码的语法错误，结果却没有任何输出。

感觉可能还是某些地方禁止了错误输出。

估计是那个：

display_errors