Write a general SQL anti-inbound module ~ Hope you can give me some ideas

Write a general SQL anti-Injection module ~~~~~ I hope I can enter more information for my website ~~ Each input part specifically writes a piece of code with a large amount of work ~~ So I want to write a class ~~ When necessary, we will introduce classes and functions to check the input when the form is onsubmit ~~ However, the input items of each form are different ~~ So I want to know if there is a general SQL anti-Injection module ~~~ What is the idea? Write a general SQL anti-Injection module ~~~~~ Hope you can give me some ideas
There are many website inputs ~~ Each input part specifically writes a piece of code with a large amount of work ~~ So I want to write a class ~~ When necessary, we will introduce classes and functions to check the input when the form is onsubmit ~~ However, the input items of each form are different ~~ So I want to know if there is a general SQL anti-Injection module ~~~ What is the idea?

XSS also needs prevention ~~ So I also want to know what a common XSS defense module is like ~~ Thank you ~~
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For anti-injection, refer to here
Http://www.w3school.com.cn/php/func_mysql_real_escape_string.asp

XSS prevents HTML SpecialChars () from being converted to HTML objects.
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A common method is to traverse submitted data for content filtering.