PHP方法调用报告关于它是未定义方法的错误 [英] PHP method call reports error about it being undefined method

问题描述

我相信我的类是正确的，但当我尝试回显类的输出，我得到一个错误在第28行：线echo'你的全名....是第28行。任何帮助将是很好的

I believe my class is correct but when I try to echo the output of the class I get an error on line 28: the line " echo 'Your full name ...." is line 28. Any help would be nice

<?php

echo 'Your full name is ' . $person->retrieve_full_name() . '.';

?>

这是我创建函数 retrieve_full_name

public function __retrieve_full_name() {
    $fullname = $this->firstname . ' . ' . $this->lastname;
    return $fullname;
}/* This ends the Full Name Function*/

/ p>

the error I get is

致命错误：调用未定义的方法stdClass :: retrieve_full_name（）在/home/mjcrawle/processlogin2.php第28行

Fatal error: Call to undefined method stdClass::retrieve_full_name() in /home/mjcrawle/processlogin2.php on line 28

推荐答案

您的函数名为 __ retrieve_full_name 调用 retrieve_full_name 。注意缺少的下划线。

your function is called __retrieve_full_name, but you call retrieve_full_name. notice the missing underscores.

双下划线通常是php内部/魔术函数的前缀，我建议不要在函数名中使用它们。

double underscores are usually the prefix for php internal/magic functions, i would advise against using them in your function names.

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