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

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：

; 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：

; 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：

; 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：

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

[email protected]:log# pwd

/var/log

[email protected]:log# touch /var/log/php_errors.log

[email protected]:log# ls /var/log/php_errors.log -l

-rw-r--r-- 1 root root 0 Jul 28 16:03 /var/log/php_errors.log

[email protected]:log# chmod +rw /var/log/php_errors.log

[email protected]:log# ls /var/log/php_errors.log -l

-rw-r--r-- 1 root root 0 Jul 28 16:03 /var/log/php_errors.log

[email protected]:log#

此处由于都是root用户，所以和没添加一样。。。

7.然后重启apache2：

[email protected]:log# service httpd restart

Redirecting to /bin/systemctl restart httpd.service

[email protected]: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.

[email protected]:log#

8.看看有无log输出了：

1 2	`[email protected]:log# tail /var/log/php_errors.log` `[email protected]: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

【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

CentOS 7中查看PHP运行时的Log文件日志信息

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