Load extension dll php

dl — Loads a PHP extension at runtime

Описание

Loads the PHP extension given by the parameter library.

Use extension_loaded() to test whether a given extension is already available or not. This works on both built-in extensions and dynamically loaded ones (either through php.ini or dl() ).

This function has been removed from some SAPI’s in PHP 5.3.

Список параметров

This parameter is only the filename of the extension to load which also depends on your platform. For example, the sockets extension (if compiled as a shared module, not the default!) would be called sockets.so on Unix platforms whereas it is called php_sockets.dll on the Windows platform.

The directory where the extension is loaded from depends on your platform:

Windows — If not explicitly set in the php.ini , the extension is loaded from C:\php4\extensions\ (PHP4) or C:\php5\ (PHP5) by default.

whether PHP has been built with —enable-debug or not
whether PHP has been built with (experimental) ZTS (Zend Thread Safety) support or not
the current internal ZEND_MODULE_API_NO (Zend internal module API number, which is basically the date on which a major module API change happened, e.g. 20010901)

Возвращаемые значения

Возвращает TRUE в случае успешного завершения или FALSE в случае возникновения ошибки. If the functionality of loading modules is not available or has been disabled (either by setting enable_dl off or by enabling безопасный режим in php.ini ) an E_ERROR is emitted and execution is stopped. If dl() fails because the specified library couldn’t be loaded, in addition to FALSE an E_WARNING message is emitted.

Примеры

Пример #1 dl() examples

// Example loading an extension based on OS
if (! extension_loaded ( ‘sqlite’ )) if ( strtoupper ( substr ( PHP_OS , 0 , 3 )) === ‘WIN’ ) dl ( ‘php_sqlite.dll’ );
> else dl ( ‘sqlite.so’ );
>
>

// Or, the PHP_SHLIB_SUFFIX constant is available as of PHP 4.3.0
if (! extension_loaded ( ‘sqlite’ )) $prefix = ( PHP_SHLIB_SUFFIX === ‘dll’ ) ? ‘php_’ : » ;
dl ( $prefix . ‘sqlite.’ . PHP_SHLIB_SUFFIX );
>
?>

Список изменений

Версия	Описание
5.3.0	dl() is now disabled in some SAPI’s due to stability issues. The only SAPI’s that allow dl() are: CLI, CGI and Embed. Use the Extension Loading Directives instead.

Примечания

Замечание:

dl() is not supported when PHP is built with ZTS support. Use the Extension Loading Directives instead.

Замечание:

dl() is case sensitive on Unix platforms.

Смотрите также

Источник

Load extension dll php

On Windows, you have two ways to load a PHP extension: either compile it into PHP, or load the DLL. Loading a pre-compiled extension is the easiest and preferred way.

To load an extension, you need to have it available as a «.dll» file on your system. All the extensions are automatically and periodically compiled by the PHP Group (see next section for the download).

To compile an extension into PHP, please refer to building from source documentation.

To compile a standalone extension (aka a DLL file), please refer to building from source documentation. If the DLL file is available neither with your PHP distribution nor in PECL, you may have to compile it before you can start using the extension.

Where to find an extension?

PHP extensions are usually called «php_*.dll» (where the star represents the name of the extension) and they are located under the «PHP\ext» folder.

PHP ships with the extensions most useful to the majority of developers. They are called «core» extensions.

However, if you need functionality not provided by any core extension, you may still be able to find one in » PECL. The PHP Extension Community Library (PECL) is a repository for PHP Extensions, providing a directory of all known extensions and hosting facilities for downloading and development of PHP extensions.

If you have developed an extension for your own uses, you might want to think about hosting it on PECL so that others with the same needs can benefit from your time. A nice side effect is that you give them a good chance to give you feedback, (hopefully) thanks, bug reports and even fixes/patches. Before you submit your extension for hosting on PECL, please read » PECL submit.

Which extension to download?

Different version numbers (at least the first two numbers should match)
Different thread safety settings
Different processor architecture (x86, x64, . )
Different debugging settings
etc.

You should keep in mind that your extension settings should match all the settings of the PHP executable you are using. The following PHP script will tell you all about your PHP settings:

Example #1 phpinfo() call

Or from the command line, run:

Источник

Loading or identifying extension directory of dll in windows

PHP stores all the dlls inside the extension directory in window system. The dlls are loaded from here ( the directory ) based on the setting of php.ini file. Many times one can get the error message saying extension not found. So after installation of PHP the best way to identify the extension directory is to open php info file and check for all the settings.

In the php info display it will be written where the extension file of the system is stored. It is also known as extension_dir . The picture below is the screen shoot of the php info display and the portion explaining the extension directory is shown.

The php.ini file located inside windows folder ( or inside php folder ) can be edited to change the extension directory location. The location of php.ini file also can be collected from php info display. Inside the php.ini file there is a line saying like this.

; Directory in which the loadable extensions (modules) reside. 
extension_dir = "c:\php_new\ext"

Change the above line to point to correct extension directory path. After showing the path inside php.ini file below the above line there will be all dlls listing and any dll can be added or removed by commenting or removing the comment before it. Here is some listing examples.

;extension=php_mcrypt.dll ;extension=php_mhash.dll ;extension=php_mime_magic.dll ;extension=php_ming.dll ;extension=php_mssql.dll extension=php_msql.dll extension=php_mysql.dll extension=php_mysqli.dll ;extension=php_oci8.dll ;extension=php_openssl.dll ;extension=php_oracle.dll ;extension=php_pdf.dll ;extension=php_pgsql.dll ;extension=php_shmop.dll

You can see three .dlls are in use. The comments lines are removed. This is the way we add or remove extensions for PHP.

Checking extension loaded or not

We can check the status of the extension by using extension_loaded() function. Here is a sample code to check gd extension.

GD support is loaded "; >else< echo "
GD support is NOT loaded "; > ?>

Источник

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Расширение	Описание	Примечания
php_bz2.dll	Функции сжатия bzip2	—
php_calendar.dll	Функции преобразования календарей	—
php_crack.dll	Функции Crack	—
php_ctype.dll	Семейство функций ctype	—
php_curl.dll	Функции библиотеки CURL	Требует библиотеки libeay32.dll , ssleay32.dll (в комплекте дистрибутива PHP)
php_dba.dll	DBA: функции абстрактного слоя DataBase (dbm-стиль)	—
php_dbase.dll	Функции dBase	—
php_dbx.dll	Функции dbx	—
php_exif.dll	Функции EXIF	Требуется библиотека php_mbstring.dll. Библиотека php_exif.dll должна загружаться после php_mbstring.dll в файле php.ini .
php_fbsql.dll	Функции FrontBase	—
php_fdf.dll	FDF: функции формата данных «Forms Data Format»	Требуется библиотека fdftk.dll (в комплекте дистрибутива PHP)
php_filepro.dll	Функции filePro	Доступ только для чтения
php_ftp.dll	Функции FTP	—
php_gd2.dll	Библиотека функций обработки изображений GD	GD2
php_gettext.dll	Функции Gettext	В PHP версий = 4.2.3 требуется библиотека libintl-1.dll и iconv.dll (в комплекте дистрибутива PHP).
php_hyperwave.dll	Функции HyperWave	—
php_iconv.dll	Функции конвертации кодировок ICONV	Требуется библиотека iconv-1.3.dll (в комплекте дистрибутива PHP), iconv.dll
php_ifx.dll	Функции Informix	Требуются библиотеки Informix
php_iisfunc.dll	Функции управления IIS	—
php_imap.dll	Функции IMAP POP3 и NNTP	—
php_ingres.dll	Функции Ingres	Требуются библиотеки Ingres
php_interbase.dll	Функции InterBase	Требуется библиотека gds32.dll (в комплекте дистрибутива PHP)
php_ldap.dll	Функции LDAP	Требует libeay32.dll , ssleay32.dll (в комплекте дистрибутива PHP)
php_mbstring.dll	Функции для работы с многобайтовыми (Multi-Byte) строками	—
php_mcrypt.dll	Функции кодирования Mcrypt	Требуется библиотека libmcrypt.dll
php_mhash.dll	Функции Mhash	Требуется библиотека libmhash.dll (в комплекте дистрибутива PHP)
php_mime_magic.dll	Функции Mimetype	Требуется файл magic.mime (в комплекте дистрибутива PHP)
php_ming.dll	Функции Ming для Flash	—
php_msql.dll	Функции mSQL	Требуется библиотека msql.dll (в комплекте дистрибутива PHP)
php_mssql.dll	Функции MSSQL	Требуется библиотека ntwdblib.dll (в комплекте дистрибутива PHP)
php_mysql.dll	Функции MySQL	Требуется библиотека libmysql.dll (в комплекте дистрибутива PHP)
php_mysqli.dll	Функции MySQLi	Требуется библиотека libmysql.dll ( libmysqli.dll в PHP версий
php_oci8.dll	Функции Oracle 8	Требуются клиентские библиотеки Oracle 8.1+
php_openssl.dll	Функции OpenSSL	Требуется библиотека libeay32.dll (в комплекте дистрибутива PHP)
php_pdf.dll	Функции PDF	—
php_pgsql.dll	Функции PostgreSQL	—
php_shmop.dll	Функции для работы с разделяемой памятью	—
php_snmp.dll	Функции для использования протокола SNMP	Только на Windows NT!
php_soap.dll	Функции SOAP	—
php_sockets.dll	Функции для работы с сокетами	—

Load extension dll php

Установка расширений PHP в ОС Windows

Load extension dll php

Описание

Список параметров

Возвращаемые значения

Примеры

Список изменений

Примечания

Смотрите также

Load extension dll php

Where to find an extension?

Which extension to download?

Loading or identifying extension directory of dll in windows

Checking extension loaded or not