php擴充初探

標籤：php 擴充

1.首先產生擴充架構結構

Cd /alidata/tmp/php-5.6.23/ext

./ext_skel --extname=myext --proto=myext.fun

1)此時會產生相關檔案

Configure config.h include myext.c config.m4

2）主要修改檔案

Config.m4

 

PHP_ARG_WITH(myext, for myext support,

Make sure that the comment is aligned:

[  --with-myext             Include myext support])

 

dnl Otherwise use enable:

 

PHP_ARG_ENABLE(myext, whether to enable myext support,

Make sure that the comment is aligned:

[  --enable-myext           Enable myext support])

 

myext.c

 

1）頭部檔案

#ifdef HAVE_CONFIG_H

#include "config.h"

#endif

 

#include "php.h"

#include "php_ini.h"

#include "ext/standard/info.h"

#include "php_myext.h"

#include<stdio.h>

#include<malloc.h>    //記憶體管理調用

 

2）變數定義

static int le_myext;

 

3）定義函數

const zend_function_entry myext_functions[] = {

        PHP_FE(myext,   NULL)           /* For testing, remove later. */

        PHP_FE(myext_fork,NULL)

        PHP_FE(myext_list,NULL)

        //PHP_PE(myext_insert,LinkList* list, LinkListNode* node, int pos)

        //PHP_PE(myext_get,LinkList* list, int pos)

        //PHP_PE(myext_create,LinkList*)

        //PHP_PE(myext_destroy,LinkList* list)

 

        PHP_FE_END      /* Must be the last line in myext_functions[] */

};

 

4）zend模組定義

zend_module_entry myext_module_entry = {

        STANDARD_MODULE_HEADER,

        "myext",

        myext_functions,     //代表載入定義的函數@標識

        PHP_MINIT(myext),

        PHP_MSHUTDOWN(myext),

        PHP_RINIT(myext),               /* Replace with NULL if there‘s nothing to do at request start */

        PHP_RSHUTDOWN(myext),   /* Replace with NULL if there‘s nothing to do at request end */

        PHP_MINFO(myext),

        PHP_MYEXT_VERSION,

        STANDARD_MODULE_PROPERTIES

};

 

 

5）實現匯出函數

 

PHP_FUNCTION(myext_list)

{       

        long lptr;   

        double dptr;

        

        if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "ld", &lptr, &dptr) == FAILURE) {

                return;

        }

        zend_printf("lptr value ad %ld",lptr);

        zend_printf("dptr value ad %ld",dptr);

}

 

6）接受使用者傳遞的參數

6.1）取得參數個數

ZEND_NUM_ARGS() TSRMLS_CC  //zend_api.h中有定義

6.2）取得實體參數

 

 

 

 

//定義變數

long lptr;

double dptr;

        

if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "ld", &lptr, &dptr) == FAILURE) {

       return;

}

 

&lptr,：表示接受的參數

&dptr：表示接受的參數

 

//參數列印

zend_printf("lptr value ad %ld",lptr);

zend_printf("dptr value ad %ld",dptr);

 

 

7）完整的匯出函數實現

 

PHP_FUNCTION(myext_list)

{       

        long lptr;

        double dptr;

        

        if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "ld", &lptr, &dptr) == FAILURE) {

                return;

        }

        zend_printf("lptr value ad %ld",lptr);

        zend_printf("dptr value ad %ld",dptr);

}

 

 

 

2.編輯擴充

/alidata/server/php-5.6.23/bin/phpize   壓縮擴充

./configure --with-php-config=/alidata/server/php-5.6.23/bin/php-config  編譯安裝擴充

 

/alidata/server/php-5.6.23/bin/php -m   顯示已經安裝的擴充

 

3.修改php.ini

[xhprof]

extension=xhprof.so

xhprof.output_dir=/tmp

 

 

extension=swoole.so

 

extension=myext.so

 

extension=php_list.so

 

 

4.php調用

<?php

myext_list()

?>

 

 

本文出自 “Linux營運” 部落格，請務必保留此出處http://2853725.blog.51cto.com/2843725/1948992

php擴充初探