Website periodic Error 500

The website server is developed in nginx and php. The website has encountered a 500 error every weekend, and the nginx error log is not recorded. Generally, it appears when the POST form is submitted, and access to other pages is normal. Note: There

What are the advantages of rbac over acl? When is rbac applicable and ACL applicable?

I have been using acl in WEB programs for user permission management. However, it is said that rbac is more powerful than acl, and I do not know where the advantage lies? I have been using acl in WEB programs for user permission management. However,

Can xdebug only track function calls when an error occurs?

Does Xdebug track function calling only when a PHP script error occurs? If not, how can I configure Xdebug so that I can see the function calls during execution in the script error-free state? If Xdebug can only view the function call status when a

Notes for assigning $ _ SERVER variables to $ _ SESSION variables in PHP

Save the following code as test. php {code ...} test this code locally and access urllocalhosttest. phpa $ _ SERVER [& #039; PATH_INFO & #039;] value: & #039; a & #039;. After the value is assigned, $ _ SESSION [& #039; the value of test & #039;] Is

Why does the linux-SMTP server reject emails sent by the PHP function?

{Code...} log on to the server using mail-s & quot; test & quot; ***** @ qq.com to test whether the smtp server can send emails. Why is the function written in PHP rejected? This function used to work and has never been moved. {Code ...} SMTP server

How do users like Diandian and Sina Blog submit their own second-level domain names and automatically resolve them?

I want to use wordpress to implement a lightweight blog function (not wpmu), but I don't know how to handle the second-level domain name, I want to know how a user submits second-level domain names and automatically resolves them like Diandian or

What is the difference between tls and ssl?

I don't have any experience. I want to share my experience with some experienced developers. for developers, using tls and ssl is just a different configuration? Does openssl implement both protocols? When using tls or ssl, is it true that https is

Erlang operators (comparison operators, numerical operators, shift operators, logical operators)

To compare two numbers, if they are of different types, such as float and int, the operation first converts the two numbers to the same To compare two numbers, if they are of different types, such as float and int, The = operation first converts the

ThinkPHP connection to Oracle Database tutorial

Recently I have collected some questions about THinkPHP connection to the Oracle database. Many of my friends follow the mysql connection method, which causes some methods to be unavailable in Oreale. Recently I have collected some questions about

How to set the default time zone of php in mac

New to mac, I installed php through brewinstallphp55, but every time I run a function related to date () strtotime (), the system will report a Warning prompt asking me to set the time zone, so where can I modify the php configuration file and

Linux-PHPshell_exec () system () failed to execute unzip

There is a business requirement for file operations. Through PHP and shell interaction, system () and shell_exec () can execute other system commands, such as mv, cp, and list, PHP sets the corresponding security configuration to allow PHP system

Php Trojan webshell scanner code

Because the front-end time server has been released, a webshell scanner has been written to kill phpwebshell. no matter whether the trojan or pony includes a sentence, the Code is now released. Because the front-end time server has been released, a

How can I install a custom package through composer. json in coding to deploy the PHP environment?

Reference: docs. coding. iolanguagesphp officially uses composer. json to configure the PHP environment, for example, {code...} OK. This is no problem and I have deployed it successfully. Now I want to use a third-party development kit: packagist.

How do I Configure Automatic push server pull for github hooks?

For example, if I develop locally and push it to github, then I have to go to the server to gitpull. Is there a way to simplify this process? The github repository automatically uses hooks when there is a push server? How to use it? For example, if

PHP Image File Upload implementation code

With PHP, you can upload files to the server. Some image judgments are added. If the file type is not determined, files in any format can be uploaded. With PHP, you can upload files to the server. Some image judgments are added. If the file type is

How does a cloud blog such as wordpress.com bind a domain name?

For example, a wordpress.com or Tumblr user can be bound to a top-level domain name after registration. How can this function be implemented? Because I want to create a cloud Blog like this, I don't know if it is implemented in apache or nginx

Page cache-how does one disable the user's local browser cache in PHP?

Topic: some files inside the enterprise are browsed online through flexpaper. The original office files are converted into swf files, which are only accessible to employees online, copying, printing, and propagation are not allowed. If the local

How does php obtain the local account without entering the user name and password to log on to the website?

Currently, You need to log on to your computer through your domain account and open your website (developed in PHP). Instead of entering your username and password again, you can directly obtain your local domain account to log on to the system.

Chapter 3 php operator and control structure code _ php entry _ script house

Chapter 3 php operators and Control Structure Code. For more information about php learning, see. Chapter 3 php operators and Control Structure Code. For more information about php learning, see. I. String insertion Difference between double

Use of php basic learning variables

For more information about the use of php basic learning variables, see. For more information about the use of php basic learning variables, see. The Code is as follows: // Reference $ One = "test "; Two = & $ one; // equivalent to the

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