1

<?php & <&= only
UTF-8 only

Files SHOULD either declare symbols (classes, functions, constants, etc.) or cause side-effects (e.g. generate output, change .ini settings, etc.) but SHOULD NOT do both:

bad:

<?php
  // side effect: change ini settings
  ini_set('error_reporting', E_ALL);

  // side effect: loads a file
  include "file.php";

  // side effect: generates output
  echo "<html>\n";

  // declaration
  function foo()
  {
      // function body
  }

good:

<?php
// declaration
function foo()
{
    // function body
}

// conditional declaration is *not* a side effect
if (! function_exists('bar')) {
    function bar()
    {
        // function body
    }
}

Class names MUST be declared in StudlyCaps.
Namespaces and classes MUST follow an "autoloading" PSR: [PSR-0, PSR-4]:

<?php
// PHP 5.3 and later:
namespace Vendor\Model;

class Foo
{
}

CONSTANT_EXMPLE_DECLARATION = 3.14
public function camelCase(){}
Code MUST use 4 spaces for indenting, not tabs.
lineLength: soft limit MUST be 120 characters; lines SHOULD be 80 characters or less.
Open braces for classes&methods: openBrace after gon on the next line, closing after the body
Blank line after namespace & use
Visibility MUST be declared on all properties and methods; abstract and final MUST be declared before the visibility; static MUST be declared after the visibility.
Control structure keywords MUST have one space after them; method and function calls MUST NOT.
Opening braces for control structures MUST go on the same line, and closing braces MUST go on the next line after the body.
Opening parentheses for control structures MUST NOT have a space after them, and closing parentheses for control structures MUST NOT have a space before.

<?php
namespace Vendor\Package;

use FooInterface;
use BarClass as Bar;
use OtherVendor\OtherPackage\BazClass;

class Foo extends Bar implements FooInterface
{
    public function sampleMethod($a, $b = null)
    {
        if ($a === $b) {
            bar();
        } elseif ($a > $b) {
            $foo->bar($arg1);
        } else {
            BazClass::bar($arg2, $arg3);
        }
    }

    final public static function bar()
    {
        // method body
    }
}

2

All PHP files MUST end with a single blank line.
The closing ?> tag MUST be omitted from files containing only PHP.
There MUST NOT be trailing whitespace at the end of non-blank lines.
Blank lines MAY be added to improve readability and to indicate related blocks of code.
There MUST NOT be more than one statement per line.
PHP keywords MUST be in lower case.
When present, all use declarations MUST go after the namespace declaration.
There MUST be one use keyword per declaration.

<?php
namespace Vendor\Package;

use FooClass;
use BarClass as Bar;
use OtherVendor\OtherPackage\BazClass;

// ... additional PHP code ...

lavandosovich/code_style.md

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