How to write the wrong "number of lines" or complete error information of php into the file

Currently, only the rows with SQL errors can be written into text files. How can I write the rows with errors. Or write the php error message into the file. What I can do is to write the SQL error lines into the text file.

How can I write the wrong number of rows. Or write the php error message into the file.

Major solution direction

Reply content:

Currently, only lines with SQL errors can be written into text files.

How can I write the wrong number of rows. Or write the php error message into the file.

Major solution direction

1. UseExceptionAn error occurred while carrying the object.
2. Use the outermost layertry catchOrset_exception_handlerCapture and output both friendly errorsExceptionInformation (including the complete callstack, which has some parameters that may need to be simplified)
3. Error can be convertedErrorExceptionSame Processing

For example, we use mongodb to record logs. This is an error of a certain day.

    "54d1d4e39dce4f834949f0e9": {        "_id": {            "$id": "54d1d4e39dce4f834949f0e9"        },        "message": "site.error",        "context": {            "uid": null,            "uri": "\/login\/wechat\/get-userinfo",            "exception": {                "class": "ErrorException",                "message": "Undefined index: openid",                "file": "\/data\/deploy\/site\/20150130-150624\/src\/Controller\/Passport\/Oauth\/WechatOauth.php:102",                "trace": [                    "\/data\/deploy\/site\/20150130-150624\/src\/Controller\/Passport\/Oauth\/WechatOauth.php:102",                    "{\"function\":\"getUserInfo\",\"class\":\"XXXX\\\\Site\\\\Controller\\\\Passport\\\\Oauth\\\\WechatOauth\",\"type\":\"::\",\"args\":[]}",                    "\/data\/deploy\/site\/20150130-150624\/vendor\/slim\/slim\/Slim\/Route.php:462",                    "\/data\/deploy\/site\/20150130-150624\/vendor\/slim\/slim\/Slim\/Slim.php:1326",                    "\/data\/deploy\/site\/20150130-150624\/vendor\/slim\/slim\/Slim\/Middleware\/Flash.php:85",                    "\/data\/deploy\/site\/20150130-150624\/vendor\/slim\/slim\/Slim\/Middleware\/MethodOverride.php:92",                    "\/data\/deploy\/site\/20150130-150624\/vendor\/slim\/slim\/Slim\/Slim.php:1271",                    "\/data\/deploy\/site\/20150130-150624\/public\/index.php:11"                ]            },            "_trace": [                "#0 XXXX\\Log\\Log->log() @ \/data\/deploy\/site\/20150130-150624\/vendor\/psr\/log\/Psr\/Log\/AbstractLogger.php:80",                "#1 Psr\\Log\\AbstractLogger->warning() @ \/data\/deploy\/site\/20150130-150624\/src\/Router.php:194",                "#2 XXXX\\Site\\Router::XXXX\\Site\\{closure}() @ :",                "#3 call_user_func_array() @ \/data\/deploy\/site\/20150130-150624\/vendor\/slim\/slim\/Slim\/Slim.php:656",                "#4 Slim\\Slim->callErrorHandler() @ \/data\/deploy\/site\/20150130-150624\/vendor\/slim\/slim\/Slim\/Slim.php:638",                "#5 Slim\\Slim->error() @ \/data\/deploy\/site\/20150130-150624\/vendor\/slim\/slim\/Slim\/Slim.php:1347",                "#6 Slim\\Slim->call() @ \/data\/deploy\/site\/20150130-150624\/vendor\/slim\/slim\/Slim\/Middleware\/Flash.php:85",                "#7 Slim\\Middleware\\Flash->call() @ \/data\/deploy\/site\/20150130-150624\/vendor\/slim\/slim\/Slim\/Middleware\/MethodOverride.php:92",                "#8 Slim\\Middleware\\MethodOverride->call() @ \/data\/deploy\/site\/20150130-150624\/vendor\/slim\/slim\/Slim\/Slim.php:1271",                "#9 Slim\\Slim->run() @ \/data\/deploy\/site\/20150130-150624\/public\/index.php:11",                "#10 {main}"            ]        },        "level": 300,        "level_name": "WARNING",        "channel": "main",        "datetime": {            "sec": 1423037667,            "usec": 0        },        "extra": []    },

The login judgment is inaccurate. Trust the notice caused by the openid returned result. You can see it without looking at the code.

Error_log (), OK?