PHP数组与[]的方法和变量声明 [英] PHP array vs [ ] in method and variable declaration
问题描述
我对PHP语法有疑问.
I have a question about PHP syntax.
在定义函数和变量时,应该使用哪种约定?
When defining functions and variables, which convention should I use?
我知道他们在实践中会做同样的事情,但是我想知道哪种方法符合最佳实践标准.
I know they do the same thing in practice but I would like to know which method conforms to best practice standards.
变量
public $varname = array();
或
public $varname = [];
方法
public function foo($bar = array()){}
或
public function foo($bar = []){}
推荐答案
PHP框架互操作性小组提供)未提及短数组语法.但正如您在中看到的那样第4.3章中,他们使用短数组语法将$arg3
的默认值设置为空数组.
PSR-2 (by PHP Framework Interoperability Group) does not mention short array syntax. But as you can see in chapter 4.3 they use short array syntax to set the default value of $arg3
to be an empty array.
因此对于PHP> = 5.4,短数组语法似乎是事实上的标准.如果要让脚本在PHP< 5.4上运行,请仅使用array()
.
So for PHP >= 5.4 the short array syntax seems to be the de-facto standard. Only use array()
, if you want your script to run on PHP <5.4.
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