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依赖注入这个词猛地一说会吓到一些新手，但是依赖注入实际上并没有那么的难以理解。依赖注入实际上是指，将你当前需要使用的对象，变换成参数的形式注入到你当前正在使用的类中。<?php class&nb...
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<!DOCTYPE html> <html lang="en"> <head> &nbs...
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目录封装的方法练习<?php header('content-type:text/html;charset=utf-8'); date_default_timezone_set...
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<!DOCTYPE html><html><head><meta charset="UTF-8"><title>chag...
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