How to remove default restrictions in thinkphp

thinkphp is a very excellent PHP framework with rich functions and easy to expand and deploy. However, sometimes we need to remove some of the default limitations of thinkphp to meet our actual needs.

First, let’s talk about the default restrictions of thinkphp. In thinkphp, some default restrictions include:

1. Controller method names only allow lowercase letters;
2. Automatically filter special characters in URL parameters;
3. Upload files by default The size limit is 2M;
4. The verification code defaults to an alphanumeric combination;
5. Only jpg, jpeg, png, and gif formats are allowed for uploaded images by default;
6. Cache is enabled by default, time for 1 hour.

These default restrictions may cause unnecessary trouble to our development work in some cases. Next, I will introduce how to remove these restrictions.

1. Only lowercase letters are allowed in controller method names

In thinkphp, only lowercase letters are allowed in controller method names by default. If we need to write method names in other case combinations, we can do so through the configuration file.

The specific operation method is to add the following code in the config.php configuration file:

'URL_CASE_INSENSITIVE' => true, // URL地址不区分大小写
'URL_ROUTER_ON' => true, // 是否开启路由

In this way, there is no restriction on the case of the controller method name.

2. Automatically filter special characters in URL parameters

In thinkphp, special characters in URL parameters are automatically filtered by default. If we need to retain the special characters in the URL parameters, we can add the following code to the config.php configuration file:

'URL_PARAMS_FILTER' => '', // URL参数不过滤任何特殊字符

This way, the special characters in the URL parameters can be retained.

3. The default upload file size limit is 2M

In thinkphp, the default upload file size is 2M. If we need to upload files exceeding this size, we can set the file upload limit in the php.ini configuration file.

The specific operation method is to find the php.ini configuration file and modify the following parameters:

upload_max_filesize = 10M //上传文件大小限制为10M
post_max_size = 10M //POST数据大小限制为10M

In this way, files exceeding 2M in size can be uploaded.

4. The verification code defaults to an alphanumeric combination

In thinkphp, the default verification code is an alphanumeric combination. If we need to use other combination methods to generate verification codes, we can set them in the configuration file. For example, if we need to generate a pure numeric verification code, we can add the following code to the config.php configuration file:

'VERIFY_CODE' => '0123456789', // 数字验证码

This will generate a pure numeric verification code.

5. Only jpg, jpeg, png, and gif formats are allowed to be uploaded by default

In thinkphp, only jpg, jpeg, png, and gif formats are allowed to be uploaded by default. If we need to upload images in other formats, we can set them in the UploadFile.class.php file.

The specific operation method is to find the UploadFile.class.php file and find the following code:

protected $allowExts = array('jpg', 'gif', 'png', 'jpeg');

Replace the 'jpg', 'gif', 'png', 'jpeg' with us You only need to allow the uploaded image format.

6. The cache is enabled by default and the time is 1 hour

In thinkphp, the cache function is enabled by default and the cache is valid for 1 hour. If we need to change the cache time, we can set it in the config.php configuration file. For example, if we need to set the cache time to 30 minutes, we can add the following code:

'DATA_CACHE_TIME' => 1800, //缓存时间为30分钟

This will set the cache time to 30 minutes.

Summary

thinkphp is a powerful PHP framework, but sometimes we need to remove some of its default limitations. This article introduces some default restrictions of thinkphp and how to remove these restrictions. I hope it will be helpful to everyone.

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