本文主要讲一下在Linux下用打包C扩展程序.so文件和Windows下的不同,详细的代码和配置方案请参加另一篇博客:http://blog.csdn.net/maverick1990/article/details/46519045
步骤:
1.安装php环境到目录 /usr/local/php/ 目录下
2.下载相同版本的php源码包,安装到 /root/php-5.6.9/ 目录下,可到官网http://www.php.net/downloads.php下载
执行命令:
cd /root wget http://us1.php.net/distributions/php-5.6.9.tar.bz2 tar -xf php-5.6.9.tar.bz2
3.到 /php-5.6.9/ext/ 目录下,使用ext_skel生成扩展骨架
cd ./php-5.6.9/ext ./ext_skel --extname=test
取消下面两行的dnl注释:
PHP_ARG_ENABLE(test, whether to enable test support, dnl Make sure that the comment is aligned: [ --enable-test Enable test support])
PHP_REQUIRE_CXX() PHP_ADD_LIBRARY(stdc++, 1, EXTRA_LDFLAGS) PHP_NEW_EXTENSION(test, test.cpp, $ext_shared)
PHP_MINIT_FUNCTION(test); PHP_MSHUTDOWN_FUNCTION(test); PHP_RINIT_FUNCTION(test); PHP_RSHUTDOWN_FUNCTION(test); PHP_MINFO_FUNCTION(test); PHP_FUNCTION(confirm_test_compiled); /* For testing, remove later. */ PHP_FUNCTION(testFunc);
(1)首先,在这个位置引入用到的头文件:
#ifdef HAVE_CONFIG_H #include "config.h" #endif #include <stdio.h> #include <string.h> #include <math.h></math.h></string.h></stdio.h>
#include "php.h" #include "php_ini.h" #include "ext/standard/info.h" #include "php_test.h"
(2)然后,在这个位置添加函数入口:
const zend_function_entry test_functions[] = { PHP_FE(confirm_test_compiled, NULL) /* For testing, remove later. */ PHP_FE(testFunc, NULL) PHP_FE_END /* Must be the last line in test_functions[] */ };
PHP_FUNCTION(testFunc) { char *x = NULL; char *y = NULL; int argc = ZEND_NUM_ARGS(); int x_len; int y_len; if (zend_parse_parameters(argc TSRMLS_CC, "ss", &x, &x_len, &y, &y_len) == FAILURE) return; int result_length = x_len + y_len; char* result = (char *) emalloc(result_length + 1); strcpy(result, x); strcat(result, y); RETURN_STRINGL(result, result_length, 0); }
关于PHP_FUNCTION函数的书写方法,详见博客:http://weizhifeng.net/write-php-extension-part2-1.html
7.在 /root/php-5.6.9/ext/test/ 目录下,建立php扩展模块:
phpize
/usr/local/php/bin/phpize
8.回到 /root/php-5.6.9/ 目录,重新建立编译需要的配置:
cd ../.. ./buildconf --force
若出现类似的报错:
buildconf: You need autoconf 2.59 or lower to build this version of PHP. You are currently trying to use 2.63 Most distros have separate autoconf 2.13 or 2.59 packages. On Debian/Ubuntu both autoconf2.13 and autoconf2.59 packages exist. Install autoconf2.13 and set the PHP_AUTOCONF env var to autoconf2.13 and try again.
yum install autoconf213 export PHP_AUTOC/bin/autoconf-2.13
./configure --with-php-c/local/php/bin/php-config
make make install
若make install出错,修改后,需要清空当前生成的扩展模块:
phpize --clean
11.查看test.so是否生成
make install成功后会给出生成路径,例如:/usr/local/php/lib/php/extensions/no-debug-non-zts-20131226/test.so
12.修改php.ini
修改 /usr/local/php/etc/php.ini 文件,加入扩展路径和名称:
extension_dir = "/usr/local/php/lib/php/extensions/no-debug-non-zts-20131226/" extension = "teste.so"
service php-fpm restart
14.在PHP中使用C++扩展函数
<?php $concat_str = testFunc("concat1","concat2"); echo $concat_str; ?>
PHP Warning PHP Startup Unable to initialize module Module compiled with module API=20121212 PHP compiled with module API=20090626 These options need to match in Unknown on line 0
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以上就介绍了在Linux下用C扩展PHP(打包成so)的方法,包括了方面的内容,希望对PHP教程有兴趣的朋友有所帮助。