PHP configuration/id

PHP is a web template system that accidentally grew up into a fairly general language. PHP's syntax, capabilities, and execution model bear vague similarities to Perl; scripts are loaded by an "interpreter", compiled to bytecode, and then executed. The PHP interpreter can be run from the command line, CGI-style, or more commonly as an in-process Apache module.

Kompatibilitas MediaWiki
For the allowed set of PHP versions you can use with your version of MediaWiki, see Compatibility#PHP.

Pemasangan
Silakan lihat https://php.net/install.

Kebutuhan
Ekstensi-ekstensi berikut dibutuhkan oleh MediaWiki:
 * Perl Compatible Regular Expressions
 * Session
 * Pusataka PHP Standar
 * Document Object Module
 * iconv character set conversion library
 * JSON (alternatively, the pecl-json-c fork)
 * mbstring multibyte character string support
 * fileinfo MIME type detection
 * intl Unicode normalization
 * At least one database driver:
 * MySQL
 * PostgreSQL
 * SQLite (melalui PDO)

MySQL dan PostgreSQL melalui PDO tidak didukung

Perl Compatible Regular Expressions, Session, Standard PHP Library, and JSON are enabled by default; Perl Compatible Regular Expressions and Standard PHP Library cannot be disabled since PHP 5.3.

Opsional
MediaWiki either needs or wants a number of optional features of PHP that need to be enabled at compile time:


 * zlib compression library, optionally to compress the file cache
 * sockets support for network communication, if using memcached

Contoh
We are successfully working with these compiler options:

 './configure' \ '--with-mysql' \ '--with-apxs2=/usr/sbin/apxs2' \ '--with-zlib' \ '--with-ldap' \ '--with-gd' \ '--with-jpeg-dir' \ '--with-iconv-dir' \ '--enable-mbstring' In detail, these configure options do the following:


 * --with-mysql : Allows PHP to query MySQL. This is an essential feature (I think). You will need to have MySQL installed to enable this option.
 * --with-apxs2=/usr/sbin/apxs2 : this is required if you want to build mod_php. APXS is for configuring compilation of an Apache module. You will need to change (or omit the path) for your specific system.
 * --with-zlib : Allows PHP to read / write zipped files and send compressed data to Apache ... or something like that
 * --with-ldap : Important if you want your wiki users to be verified by LDAP
 * --with-gd : Use this if you want image processing 'within' PHP, else you can use ImageMagick. Because this option requires that you have various libraries installed... but presumably IM has the same deps... oh well...
 * --with-jpeg-dir : Seems nonsensical
 * --with-iconv-dir : Seems nonsensical
 * --enable-mbstring : Allows multibyte character string support. This is optional, as slower custom code will be used if not available.

Opcode caching

 * Lihat

Due to MediaWiki's large codebase, it is highly recommended that a system be used to cache the compiled scripts; there are a number of such plugins for PHP, some free, some proprietary. There is a list of some caches:


 * Alternative PHP Cache -- used at Wikimedia
 * Windows Cache Extension for PHP -- recommended for IIS users

Untungnya, semua ini dapat dipasang sebagai colok-masuk Zend, Anda cukup masuk ke perpustakaan dan mengubah php.ini Anda. Tidak perlu melakukan kompilasi ulang yang rumit untuk seluruh PHP!

TBergantung pada cache dan opsi yang Anda gunakan, Anda mungkin harus melakukan operasi khusus setiap kali memperbarui berkas skrip.

MediaWiki can also interact with that caches and use them for object caching, see.

Runtime configuration (php.ini)
Some settings in php.ini affects MediaWiki behavior and some of them are incompatible with MediaWiki


 * register_globals


 * safe_mode
 * Safe mode is an ill-conceived, broken-by-design setting in PHP; MediaWiki can work with this option on, but some features won't work.


 * magic_quotes_gpc
 * This options adds quotes to data in,   and  . MediaWiki can work with this option turned on, but will have to remove these quotes and thus will be slower.


 * magic_quotes_runtime
 * This option corrupts data input unpredictably by adding quotes in e.g. opened files, data received from database etc. MediaWiki will refuse to install if this option is turned on.


 * magic_quotes_sybase
 * same as magic_quotes_runtime


 * mbstring.func_overload
 * This option causes errors and may corrupt data unpredictably; MediaWiki will refuse to install if this option is turned on.


 * zend.ze1_compatibility_mode
 * This option causes horrible bugs; MediaWiki will refuse to install if this option is turned on.


 * memory_limit
 * MediaWiki needs sufficiently memory to work. The minimal limit should be something like 20 MB, but if you want MediaWiki to work correctly, consider using at least 50 MB.


 * disable_functions
 * To be able to find GNU diff3 and git during installation process this entry must not contain passthru


 * post_max_size
 * If you are getting the error " " then it could be because this is set with a "MB" prefix, instead of just "M" (the former is interpreted at bytes, not megabytes).

Mengubah ukuran gambar
ImageMagick dapat digunakan untuk mengubah ukuran gambar. Jika tidak tersedia, modul GD PHP dapat digunakan bila memungkinkan.

Lihat pula

 * PHP Knowledgebase
 * Tutorial PHP
 * Suhosin (Hardened-PHP Project patch and extension)