Class Format Standards

[The Little Guy]

What are some common standards to writing a php class?

 

One thing I think is a standard is using "Camel Case" (example):

public function myFunctionName

instead of using:

public function my_function_name

 

Is that true, and are there any others that you know about? I would like to hear what they are!

 

Thanks!

[jcbones]

I normally use camelCase, even in my variables.  I have seen many people use underscores though.  It is really down to personalPreference, IMHO.

 

[requinix]

I tend to do camel case for normal terms that contain multiple words, then underscores for some kind of relation - often (but not always) to another variable, and generally protected or private.

public  $dirSeparator = null;
private $dirSeparator_windows = "\\";
private $dirSeparator_unix = "/";

public function parseXmlFeed() {

private function parseXmlFeed_channel($channel) {

private function parseXmlFeed_item($item) {

[KevinM1]

I use camel case as well.  I'm not a fan of underscores in general.  Looks ugly, IMO, and requires extra key presses.  The exception is as a prefix to private members.  I'm torn on using them, so I often simply leave the first letter of my private members lowercase:

 

private function somePrivateFunction(){}

 

I capitalize public members, like so:

 

public function SomePublicFunction(){}

 

Class names themselves always have capitalized first letters.  Interfaces have the 'I' prefix:

 

class Example implements ISomeInterface{}

[trq]

I use the Zend Framework Coding Standard for PHP which is great because we use the same standard at work and you can use codesniffer pre-commit hooks within your version control system to make sure nothing is committed that doesn't follow the standards rules.