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PHP 扩展位于 ext 文件夹，文件夹中有 ext_skel.php 可用来快速创建扩展
php ext_skel.php --help
WHAT IT IS
It's a tool for automatically creating the basic framework for a PHP extension.
HOW TO USE IT
Very simple. First, change to the ext/ directory of the PHP sources. Then run
the following
php ext_skel.php --ext extension_name
and everything you need will be placed in directory ext/extension_name.
If you don't need to test the existence of any external header files,
libraries or functions in them, the extension is ready to be compiled in PHP.
To compile the extension run the following:
cd extension_name
phpize
./configure
make
Don't forget to run tests once the compilation is done:
make test
Alternatively, to compile extension in the PHP:
cd /path/to/php-src
./buildconf
./configure --enable-extension_name
make
make test TESTS=ext/extension_name/tests
The definition of PHP_extension_NAME_VERSION will be present in the
php_extension_name.h and injected into the zend_extension_entry definition.
This is required by the PECL website for the version string conformity checks
against package.xml
SOURCE AND HEADER FILE NAME
The ext_skel.php script generates 'extension_name.c' and 'php_extension_name.h'
as the main source and header files. Keep these names.
extension functions (User functions) must be named
extension_name_function()
When you need to expose extension functions to other extensions, expose
functions strictly needed by others. Exposed internal function must be named
php_extension_name_function()
See also CODING_STANDARDS.md.
OPTIONS
php ext_skel.php --ext <name> [--experimental] [--author <name>]
[--dir <path>] [--std] [--onlyunix]
[--onlywindows] [--help]
--ext <name> The name of the extension defined as <name>
--experimental Passed if this extension is experimental, this creates
the EXPERIMENTAL file in the root of the extension
--author <name> Your name, this is used if --std is passed and for the
CREDITS file
--dir <path> Path to the directory for where extension should be
created. Defaults to the directory of where this script
lives
--std If passed, the standard header used in extensions that
is included in the core, will be used
--onlyunix Only generate configure scripts for Unix
--onlywindows Only generate configure scripts for Windows
--help This help
执行?php ext_skel.php --ext extension_name 创建扩展??extension_name 替换为自己的扩展名称
php ext_skel.php --ext marin
Copying config scripts... done
Copying sources... done
Copying tests... done
Success. The extension is now ready to be compiled. To do so, use the
following steps:
cd /path/to/php-src/marin
phpize
./configure
make
Don't forget to run tests once the compilation is done:
make test
Thank you for using PHP!
此时在ext文件夹中可以发现多了 marin 文件夹
ll | grep marin
drwxr-xr-x 8 tal staff 256B Dec 28 14:59 marin
marin 文件夹中文件如下
-rw-r--r-- 1 tal staff 3.2K Dec 28 14:59 config.m4
-rw-r--r-- 1 tal staff 204B Dec 28 14:59 config.w32
-rw-r--r-- 1 tal staff 2.2K Dec 28 14:59 marin.c
-rw-r--r-- 1 tal staff 309B Dec 28 14:59 php_marin.h
drwxr-xr-x 5 tal staff 160B Dec 28 14:59 tests
marin.c文件中定义了两个示例函数?marin_test1 marin_test2
/* {{{ void marin_test1()
* 无返回值函数
*/
PHP_FUNCTION(marin_test1)
{
ZEND_PARSE_PARAMETERS_NONE();
php_printf("The extension %s is loaded and working!\r\n", "marin");
}
/* }}} */
/* {{{ string marin_test2( [ string $var ] )
* 接收一个可选参数，有返回值
*/
PHP_FUNCTION(marin_test2)
{
char *var = "World";
size_t var_len = sizeof("World") - 1;
zend_string *retval;
ZEND_PARSE_PARAMETERS_START(0, 1)
Z_PARAM_OPTIONAL
Z_PARAM_STRING(var, var_len)
ZEND_PARSE_PARAMETERS_END();
retval = strpprintf(0, "Hello %s", var);
RETURN_STR(retval);
}
编译一下看看效果
在marin文件夹中执行
phpize
./configure
make
make test
make install
然后在php.ini开启marin扩展
创建index.php
<?php
marin_test1();
?运行文件
php test.php
The extension marin is loaded and working!
编辑index.php
<?php
echo marin_test2();
echo "\n";
echo marin_test2("marin");
运行文件
php test.php
Hello World
Hello marin%
创建一个求两个整数和的函数
编辑marin.c
PHP_FUNCTION(marin_test1)
{
ZEND_PARSE_PARAMETERS_NONE();
php_printf("The extension %s is loaded and working!\r\n", "marin");
}
/* }}} */
/* {{{ string marin_test2( [ string $var ] )
*/
PHP_FUNCTION(marin_test2)
{
char *var = "World";
size_t var_len = sizeof("World") - 1;
zend_string *retval;
ZEND_PARSE_PARAMETERS_START(0, 1)
Z_PARAM_OPTIONAL
Z_PARAM_STRING(var, var_len)
ZEND_PARSE_PARAMETERS_END();
retval = strpprintf(0, "Hello %s", var);
RETURN_STR(retval);
}
// 新增代码
PHP_FUNCTION(marin_test3){
int a;
int b;
ZEND_PARSE_PARAMETERS_START(2, 2)
Z_PARAM_LONG(a)
Z_PARAM_LONG(b)
ZEND_PARSE_PARAMETERS_END();
RETURN_LONG(a+b);
}
...
...
...
static const zend_function_entry marin_functions[] = {
PHP_FE(marin_test1, arginfo_marin_test1)
PHP_FE(marin_test2, arginfo_marin_test2)
PHP_FE(marin_test3, NULL) // 新增代码
PHP_FE_END
};
重新编译
phpize
./configure
make
make test
make install
编辑index.php
<?php
echo marin_test3(1,2);
运行文件?
php test.php
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