3 recommended articles about adding functions

During the development process, the return value type of the function should be determined and unchanged, but PHP is a weakly typed language, so PHP does not have such syntax verification. Because of this, it has caused many pitfalls. For example, the following code: The function getArticles returns different types of values ​​according to different conditions, including bool, int, and arrays. Normally, this type of function hopes to return an array, and then use the array to do some other operations, but because the function returns a value The type is not fixed, and various unexpected pitfalls are likely to occur when calling, so I thought that since it cannot be standardized, then just force it. Function/method return values ​​can be forced to type: int function a(){ ... return 1;}bool function b(){ ... return false;}array function c(){ ... ... return array();}object function d(){ ......

1. php: Add function forced type return to php

Introduction: php: Add function mandatory type return to PHP

2. Add function mandatory type return to PHP

Introduction: During the development process, the return value type of the function should be determined and unchanged, but PHP is a weakly typed language , so PHP does not have such syntax verification, and because of this, it has caused many pitfalls. For example, the following code: ?phpfunction getArticles(...){ $arrData = array(); if($exp1){ return $arrData; }else if($exp2)

3. Time increasing function

##Introduction: Time increasing function

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