在PHP中创建不带括号的函数，例如"echo" [英] Creating functions without parentheses in PHP like 'echo'

问题描述

我想知道是否有任何不错的方法用PHP编写函数，以便它们不需要在参数周围使用().

I was wondering if there is any nice way of writing functions in PHP so that they don't require ( ) around the parameters.

示例:

function sayThis($str) {
    echo $str;
}

sayThis "hi!!";

谢谢， 马特·穆勒(Matt Mueller)

Thanks, Matt Mueller

推荐答案

根本没有. "echo"更像是一个运算符，而不是一个函数，因此您实际上需要重写PHP解释器源代码，以引入类似这样的新函数".

There simply isn't. "echo" is more of an operator than a function, so you'd actually need to rewrite the PHP interpreter source in order to introduce new "functions" like those.

实际上，正如eyze正确指出的那样，"echo"的更准确术语是语言构造而不是运算符. http://php.net/manual/de/function.echo.php提供更多信息.

Actually, the more accurate term for "echo" is, as eyze has correctly pointed out, language construct rather than operator. http://php.net/manual/de/function.echo.php provides some more information.

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