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PHP Advanced Chapter-Function (Jade Girl Heart Sutra Edition)
Chapter1 Custom function
1-1 Introduction to functions
1-2 Detailed explanation of function parameters
1-3 function return value
Chapter2 PHP variable scope
2-1 local variables
2-2 global variables
2-3 static variable
Chapter3 PHP special form of functions
3-1 variadic function
3-2 callback function-1
3-3 callback function-2
3-4 callback function-3
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notes
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![Front-end project-Shangyou [HTML/CSS/JS technology comprehensive practice]](https://img.php.cn/upload/course/000/000/068/63bfcb2974f91471.jpg)
![Zero-based front-end course [Vue advanced learning and practical application]](https://img.php.cn/upload/course/000/000/068/63bbd15353895588.jpg)
![WEB front-end tutorial [HTML5+CSS3+JS]](https://img.php.cn/upload/course/000/000/068/63ba60c8da520536.jpg)
![Apipost practical application [api, interface, automated testing, mock]](https://img.php.cn/upload/course/000/000/068/63b3c967a20f4861.jpg)
