Summarize field information example usage

githttps://github.com/sea-boat/mysql-protocol Overview The ColumnDefinition package is part of the package when the server returns the ResultSet, and is used to describe the field information of the result set. mysql communication message structure type name description int<3> payload length is stored according to the least significant byte first, 3-byte payload and 1-byte sequence number are combined into a message header int<1> sequence number stringpayload message body , the length is the previously specified payload length ColumnDefinition package Payloadlenenc_str catalog lenenc_str schema lenenc_str &nb

1. Mysql protocol ColumnDefinition package and parsing code details

Introduction: The ColumnDefinition package is part of the package when the server returns the ResultSet, and is used to describe the field information of the result set.

2. php mysql three methods to obtain table field names and field information

Introduction: Three methods for php mysql to obtain table field names and field information. First, give the information about the table used in this example: Use desc to obtain table field information. The php code is as follows: <& #63;php mysql_connect("localhost","root",""); mysql_select_db("test"); $query = "desc student"; $result = mysql_query($query

3. I want to modify the data table field information after laravel database migrate

Introduction: After executing php artisan migrate in laravel, data is also inserted into the database, but now I If you want to modify the target structure, for example, you want to add a default value of 0 to the title field. If you withdraw it, the data will be gone. How can you ensure that the database data is still there and you can modify the data table? ps (I tried if I add a...

4. Use php to get the field information of the table

Introduction: Use php to get the field information of the table

5. php mysql data table gets field name, length, information_PHP tutorial

Introduction: php mysql data table gets field name, Length, information. Powerful PHP can use the related functions of MySQL interaction to obtain the field information of the data table. For example, the data table can be obtained to obtain the field name, field length, field information, etc. Powerful PHP tutorial

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#6. What are the ways to implement custom fields? Solution

##Introduction: What are the ways to implement custom fields? The idea is to save the user input field information in a separate table, and then read the type and other information of each field from the database when outputting the form. Is this reasonable? ------Solution------ ---------------Custom fields. First, a table stores the name of the custom field, and then uses another table to store the custom field id, the corresponding id, and the value of the custom field. . ------Solution-----------

7.

How to synchronize field information in different tables in different libraries? mysql

#Introduction: How to synchronize field information in different tables in different libraries? Mysql synchronizes the user personal information of two programs. Is there any convenience? 1. When adding, write at the same time. 2. Modify at the same time. Is there anything other than this? The tables are different, and the field definitions are not all in the same table and one program. It is discuz and the other is kppw------Solution-------------------- I think it should be like this, encapsulate a synchronization class, call the modification method when modifying, and synchronize multiple tables in it

8.

ThinkPHP protected template information

Introduction: ThinkPHP protected template files Core tip: Because the field information of the data table may be leaked in the template file, there are two ways to protect your template file from being accessed: The first way is to configure the .htaccess file. ThinkPHP protects the template file, which is for the Apache server. In other words, save the following code in the project's template directory (default is Tpl) and save it as .htaccess. In this way, the entire project directory cannot be directly accessed because the template

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