PHP 5.3/6

PHP 5.3/6

Standortbestimmung

Thomas Weinert, papaya Software GmbH 2

About me

Application Developer▹ PHP

▹ XSLT/XPath

▹ (some) Javascript papaya CMS

▹ PHP based Content Management System

▹ uses XSLT for Templates


PHP 5.3

„PHP 5.3 is still young“


PHP 5.3


PHP 6

„PHP 6 is already in development“


PHP 6

… for some years ...


PHP 5.3

What do we get?


Bugfixes

Assigned Suspended Feedback NoFeedback

Wont fix Bogus

261 26 45 1651 350 5806

All Closed Open Critical Verified Analyzed

13085 4007(199) 919 (50) 2 11 2


Performance

Performance

about 5 – 15% or more?


Garbage Collection

gc_enable()▹ Activates the circular reference collector

gc_collect_cycles()▹ Forces collection of any existing garbage cycles.

gc_disable() gc_enabled()


PHP.INI

per directory (like .htaccess)▹ Cached

[PATH=/opt/httpd/www.example.com/] [HOST=www.example.com]

Ini „variables“ absolute paths for extensions


Extensions Changed

PCRE, Reflection, SPL▹ can not be disabled any more

MySQL(i)▹ mysqlnd

SQLite▹ SQLite 3 Support

GD▹ removed GD1 and Freetype1 support


Extensions Moved

Moved to PECL▹ fdf

▹ ncurses

▹ sybase

▹ ming

▹ dbase

▹ fbsql

▹ mime_magic


Extensions Added

fileinfo intl phar


Fileinfo

File mimetype▹ from magic bytes

▹ not bullet proof

BC to ext/mime_magic▹ mime_content_type()


Fileinfo Sample

<?php$finfo = finfo_open(FILEINFO_MIME);

foreach (glob("*") as $filename) { echo finfo_file($finfo, $filename) . "\n";}

finfo_close($finfo);?>


INTL

ICU▹ International Components for Unicode

Internationalization▹ String functions

▹ Collator

▹ Number Formatter

▹ Message Formatter

▹ Normalizer

▹ Locale


PHAR

PHP applications in one package easy distribution and installation verify archive integrity PHP stream wrapper tar and zip Phar format with stub<?php include 'phar:///path/to/myphar.phar/file.php';?>


PHAR

Using a stub Makes a PHAR file a PHP script

<?phpPhar::webPhar();__HALT_COMPILER();

http://www.domain.tld/app.phar/page.php


SPL

Now always enabled

many iterators and recursive iterators SPLFixedArray http://www.php.net/spl


Error Reporting

E_DEPRECATED splitted from E_STRICT E_DEPRECATED included in E_ALL

is_a() is not in E_DEPRECATED any more▹ but documentation still says it is


Syntax Sugar

__DIR__ replaces dirname(__FILE__) ?:

▹ $foo = $bar ?: 'default' Nowdoc

▹ $foo = <<<'HTML' // no variables parsed Heredoc

▹ double quotes

▹ static $foo = <<<HTML // no variables allowed


Static

Late Static Binding __callStatic static::foo


LSB - Why

<?phpclass bar { public function show() { var_dump(new self); }}class foo extends bar { public function test() { parent::show(); }}$foo = new foo;$foo->test();?> object(bar)#2 (0) { }


LSB - Why

<?phpclass bar { public function show() { var_dump(new static); }}class foo extends bar { public function test() { parent::show(); }}$foo = new foo;$foo->test();?> object(foo)#2 (0) { }


Dynamic Static Calls

<?phpclass foo { function bar() { var_dump('Hello World'); }}foo::bar();

$o = new foo();$o::bar();

$s = 'foo';$s::bar();?>


Lambda Functions

<?php header('Content-type: text/plain');$text = '<b>Hello <i>World</i></b>';$ptn = '(<(/?)(\w+)([^>]*)>)';

$cb = function($m) { if (strtolower($m[2]) == 'b') { return '<'.$m[1].'strong'.$m[3].'>'; } return '';};echo preg_replace_callback($ptn, $cb, $text);?>


Closures

...$repl = array( 'b' => 'strong', 'i' => 'em');$cb = function ($m) use ($repl) { $tag = strtolower($m[2]); if (!empty($replace[$tag])) { return '<'.$m[1].$repl[$tag].$m[3].'>'; } return '';};echo preg_replace_callback($ptn, $cb, $t);?>


Currying

function curry($callback) { $args = func_get_args(); array_shift($args); return function() use ($callback, $args) { $args = array_merge( func_get_args(), $args ); return call_user_func_array( $callback, $args ); };}


Currying

$cb = curry(array('replace', 'tags'), $replace);echo preg_replace_callback( $pattern, $cb, $text);

class replace { function tags($m, $repl) { $tag = strtolower($m[2]); if (!empty($repl[$tag])) { return '<'.$m[1].$repl[$tag].$m[3].'>'; } return ''; }}


Namespaces

Encapsulation▹ Classes

▹ Functions

▹ Constants __NAMESPACE__ Overload classes


Namespace Separator

::

Old▹ Double Colon

▹ Paamayim Nekudotayim

Current▹ Backslash?

▹ Discussion started

\


Namespaces: Classes

<?php namespace carica::core::strings;const CHARSET = 'utf-8';class escape { public static function forXML($content) { return htmlspecialchars( $content, ENT_QUOTES, CHARSET ); }}?>


Use Namespaces

...namespace carica::frontend;use carica::core::strings as strings;... public function execute() { echo strings::escape::forXML( 'Hello World' ); }...


Namespaces: Constants

PHP-Wiki:▹ constants are case-sensitive, but namespaces are

case-insensitive.

▹ defined() is not aware of namespace aliases.

▹ the namespace part of constants defined with const are lowercased.


GOTO

<?php goto a; print 'Foo'; a: print 'Bar';?>


PHP 6

„Backports“ to PHP 5.3

Upload progress in session Unicode

▹ PHP Source

▹ Functions

▹ Resources


Links

Slides▹ http://www.abasketfulofpapayas.de

PHP 5.3 upgrading notes▹ http://wiki.php.net/doc/scratchpad/upgrade/53

PHP 5.3 ToDo▹ http://wiki.php.net/todo/php53

PHP 6 ToDo▹ http://wiki.php.net/todo/php60

PHP 5.3/6

Technology

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