php error_log 错误信息写入文件的例子
php error_log 错误信息如果要做日志分析我们是需要生成日志文件保存到数据库中或文件中了,我们这里以写文件为例子,下面一起来看看
开发的时候,基本上都会把display_errors,error_reporting开启,有助于提高开发效率,上线后,基本上都会关掉页面报错信息,在把报错信息,放到文件中。
一,php-fpm的error_log配置
1,修改php.ini
display_errors = Off //改为off,页面访问时就不会出现报错信息了
2,修改php-fpm配置文件
;php_flag[display_errors] = off
php_admin_value[error_log] = /var/log/php-fpm/www-error.log
php_admin_flag[log_errors] = on
重启php-fpm,在这里要注意,php-fpm的配置会替换php.ini中的配置,display_errors也可以在php-fpm中配置。这样页面上就不会出现报错信息,报错信息被记录到了文件中。
二,命令行下的error_log配置,修改php.ini
display_errors = Off
log_errors = On
error_log = /var/log/cron/error.log
执行命令,例如:
[root@network www]# php test.php //test.php有语法错误
命令行下,是不调用php-fpm的配置的,所以我们只能修改php.ini的内容,修改后,不用重启php。执行命令后,错误信息,会被写到error.log文件中,这种情况适合crontab的php脚本。

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