How to use SVN for version control in PHP development

Version control is a very common operation in PHP development, and the most commonly used tool is SVN (Subversion). It can easily manage historical versions of code and code updates during collaborative development. The following will introduce how to use SVN for version control in PHP development.

1. Install the SVN client and server
First you need to install the SVN client and server. The SVN client can download the corresponding version from the SVN official website and install it. The server needs to be built by yourself. The specific methods can be found on excellent tutorial websites (such as "Rookie Tutorial", "Silicon Valley", etc.).

2. Create an SVN warehouse
After the installation is completed, create an SVN warehouse. You can use the following command in the command line terminal to create:

svnadmin create /path/to/repository

where /path/to/repository is the path to the repository you want to create. During the creation process, you will be asked to enter some warehouse-related information, just follow the prompts.

3. Set SVN permissions
In multi-person collaborative development, different people have different permissions. Setting permissions can subdivide users' access rights to the code in the warehouse and improve security. You can create a conf folder in the directory of the SVN repository and create an svnserve.conf file in it. Then set the users and permissions in that file.

4. Check out the warehouse
Checking out the warehouse means copying the code in the SVN warehouse to the local for development and modification. Checkout can be done using the following command in the command line terminal:

svn checkout svn://localhost/path/to/repository /path/to/local/directory

where svn:/ /localhost/path/to/repository is the access path to the SVN warehouse, and /path/to/local/directory is the directory created locally. During the checkout process, you will be prompted to enter your username and password. Enter to complete the checkout.

5. Submit the code
After completing local development, you need to submit the code to the SVN warehouse for storage, so that others can see the changes you made. You can use the following command in the command line terminal to submit the code:

svn commit -m "Modification Description"

The "Modification Description" is a description of the modifications, and the SVN warehouse will record it. The log information you submitted.

6. Update code
In multi-person collaborative development, other people will also modify and submit the code. To stay in sync, local code needs to be updated with changes made by others. You can use the following command to update:

svn update

7. Branches and tags
During the development process, code branches and tags may need to be managed for future development. . Branching means creating a new version copy from a certain version of the SVN warehouse, and tagging means marking a certain version and specifying it as a specific version. You can use the following commands for branching and tagging operations:

svn copy svn://localhost/path/to/repository/trunk svn://localhost/path/to/repository/branches/branch1 -m "Create Instructions for branch 1"
svn copy svn://localhost/path/to/repository/trunk svn://localhost/path/to/repository/tags/tag1 -m "Instructions for creating tag 1"

After the branch is created, development and modification can be carried out in the new branch copy. Tagging is to mark a certain version to facilitate subsequent search and use.

The above is the basic process of using SVN for version control in PHP development. In this way, historical versions of the code can be easily managed, and code synchronization and management can be performed during collaborative development.

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