1. ReCAPTCHA
The reCAPTCHA database allows you to create an advanced CAPTCHA system for your website. This system is used to generate verification information, including voice verification. Of course, there is also the reCAPTCHA service available, which provides easy-to-use free APIs, it is worth trying on your website.
Download ReCAPTCHA | get API Key | document
2. Akismet
Akismet is a free service for small sites. It is used to modify the comments that will be added to the database (to prevent malicious comments ). This database has been improving.
For details, refer to Akismet introduction.
3. Services_JSON
JSON is an easy-to-understand information transfer format. However, if you have not used PHP versions later than 5.2.0 (since then PHP has been officially supported by JSON), you should try this library.
View Services_JSON
4. Smarty
Smarty is the famous official template library. It provides many useful functions. In fact, PHP should be used by anyone.
Download Smarty | official documentation
5. pChart
PChart is an extremely famous data graphics library. It provides various beautiful charts for data presentation. In fact, PHP users will always use it.
Download pChart | document | view demo
6. SimplePie
SimplePie allows you to easily extract content (like RSS feeds ). It can interact with multiple languages and process feeds in various formats.
Download SimplePie | view document | expand SimplePie for unique RSS Feeds
7. XML-RPC PHP Library
Sometimes you need to use XML-RPC technology to interact with other sites, then try this XML-RPC PHP library.
Download XML-RPC PHP | view documents
8. Amazon S3
Amazon's famous cloud computing platform is called "S3 ″. The Amazon S3 library allows you to use the cloud without any additional tools to upload a large number of data files.
Download Amazon S3 PHP Class
9. PHPMailer
Most web applications use the mail () function in PHP. PHPMailer allows you to process Email sending more flexibly, not only supporting any format, but also adding attachments and customizing headers.
Download PHPMailer | view the document