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Homephp教程php手册PHP编程之代码命名规范

文件名:一律小写,单词间以下划线分隔

类名:采用首字母大写的驼峰命名方式

类中的方法名:采用首字母小写的驼峰方式命名

类中的私有方法和私有变量:以下划线开头

函数名(变量名):全小写,单词间以下划线分隔

下面具体介绍

Θ 类文件都以.class.php为后缀,使用驼峰法命名,并且首字母大写,例如 Pay.class.php;

Θ 类名和目录_文件名一致。例如:类名Zend_Autoloader的目录是Zend/Autoloader.class.php;

Θ 函数的命名使用小写字母和下划线的方式。例如:get_client_ip;

Θ 方法的命名使用驼峰法,首字母小写或者使用下划线"_",例如listComment(),_getResource(),通常下划线开头的方法属于私有方法;

Θ 属性的命名使用驼峰法,首字母小写或者使用下划线"_",如$username,$_instance,通常下划线开头的属性属于私有属性;

Θ 常量以大写字母和下划线"_"命名,如"HOME_URL";

理解一下消化一下:

1.缩进及行的长度

缩进4个空格,而不是tab(有些编辑器可以配置一个tab代表多个空格,注意是空格),每行保持大约75-85个字符的长度.

2.控制结构

这个部分最容易忽略,也是影响代码美感最重要的方面,例子很详细了,受益匪浅,代码如下:

<?php
if ((condition1) || (condition2)) {
    action1;
} elseif ((condition3) && (condition4)) {
    action2;
} else {
    defaultaction;
}
?>
<?php
switch (condition) {
    case 1:
        action1;
        break;
    case 2:
        action2;
        break;
    default:
        defaultaction;
        break;
}
?>
<?php
if (($condition1 || $condition2) && $condition3 && $condition4) {
    //code here
    
}
?>
<?php
$a = $condition1 && $condition2 ? $foo : $bar;
$b = $condition3 && $condition4 ? $foo_man_this_is_too_long_what_should_i_do : $bar;
?>

3.函数调用,代码如下:

<?php
$var = foo($bar, $baz, $quux);
$short = foo($bar);
$long_variable = foo($baz);
?>

4.类名规范,代码如下:

<?php
class Foo_Bar {
    //... code goes here
    
}
?>

5.方法名规范(驼峰命名),代码如下:

<?php
function fooFunction($arg1, $arg2 = &#39;&#39;) {
    if (condition) {
        statement;
    }
    return $val;
}
?>

6.数组定义规范,代码如下:

<?php
$some_array = array(
    &#39;foo&#39; => &#39;bar&#39;,
    &#39;spam&#39; => &#39;ham&#39;,
);
?>

7.注释

http://pear.php.net/manual/en/standards.sample.php

http://pear.php.net/manual/en/standards.header.php

8.Including Code

任何时候都应该采用include_once或者require_once

require_once 'foo.php';


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