PHP5 扩展编写

准备

1.php版本

https://www.php.net/distributions/php-5.5.8.tar.bz2
tar xvf php-5.5.8.tar

2.安装依赖类库

yum install gcc bison bison-devel zlib-devel libmcrypt-devel mcrypt mhash-devel openssl-devel libxml2-devel libcurl-devel bzip2-devel readline-devel libedit-devel

# 增加用户组和用户
groupadd www
useradd -g www -s /sbin/nologin -M www

3.安装php

./configure \--prefix=/usr/local/php --with-config-file-path=/etc --enable-inline-optimization --disable-debug --disable-rpath --enable-shared --enable-opcache --enable-fpm --with-fpm-user=www --with-fpm-group=www --with-mysql=mysqlnd --with-mysqli=mysqlnd --with-pdo-mysql=mysqlnd --with-gettext --enable-mbstring --with-iconv --with-mhash --with-openssl --enable-bcmath --enable-soap --with-libxml-dir --enable-pcntl --enable-shmop --enable-sysvsem --enable-sockets --with-curl --with-zlib --enable-zip --with-bz2 --with-readline --without-sqlite3 --without-pdo-sqlite --with-pear

make && make install

4.配置修改

# php.ini 配置拷贝
cp php-5.5.8/php.ini-development /etc/php.ini

# php-fpm 配置修改
cp /usr/local/php/etc/php-fpm.conf.default php-fpm.conf
vim php-fpm.conf
;pid = run/php-fpm.pid #;去掉保存

# 启动项
cp php-5.5.8/sapi/fpm/init.d.php-fpm /etc/init.d/php-fpm
chmod +x /etc/init.d/php-fpm

# 启动命令
/etc/init.d/php-fpm start
/etc/init.d/php-fpm stop
/etc/init.d/php-fpm restart

# php -v
vim ~/.bash_profile

PATH=$PATH:$HOME/bin:/usr/local/php/bin
export PATH

. ~/.bash_profile

ext_skel

1.格式

php-5.5.8/ext/ext_skel --extname=扩展名

2.自定扩展

php-5.5.8/ext/ext_skel --extname=array_square_sum

Creating directory zzmeow
Creating basic files: config.m4 config.w32 .svnignore zzmeow.c php_zzmeow.h CREDITS EXPERIMENTAL tests/001.phpt zzmeow.php [done].

To use your new extension, you will have to execute the following steps:

1.  $ cd ..
2.  $ vi ext/array_square_sum/config.m4
3.  $ ./buildconf
4.  $ ./configure --[with|enable]-array_square_sum
5.  $ make
6.  $ ./php -f ext/zzmeow/array_square_sum.php
7.  $ vi ext/zzmeow/array_square_sum.c
8.  $ make

Repeat steps 3-6 until you are satisfied with ext/array_square_sum/config.m4 and
step 6 confirms that your module is compiled into PHP. Then, start writing
code and repeat the last two steps as often as necessary.

3.编辑config.m4 去掉dnl

vim php-5.5.8/ext/array_square_sum/config.m4

dnl PHP_ARG_WITH(array_square_sum, for array_square_sum support,
dnl Make sure that the comment is aligned:
dnl [  --with-array_square_sum             Include array_square_sum support])

4.编辑array_square_sum.c

1.array_square_sum_functions 调整

const zend_function_entry array_square_sum_functions[] = {
        PHP_FE(confirm_array_square_sum_compiled, NULL)           /* For testing, remove later. */
        PHP_FE_END      /* Must be the last line in array_square_sum_functions[] */
};

# 修改成
const zend_function_entry array_square_sum_functions[] = {
        PHP_FE(array_square_sum,        NULL)           /* For testing, remove later. */
        PHP_FE_END      /* Must be the last line in array_square_sum_functions[] */
};

2.confirm_array_square_sumw_compiled 调整

PHP_FUNCTION(confirm_array_square_sumw_compiled)
{
        char *arg = NULL;
        int arg_len, len;
        char *strg;

        if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s", &arg, &arg_len) == FAILURE) {
                return;
        }

        len = spprintf(&strg, 0, "Congratulations! You have successfully modified ext/%.78s/config.m4. Module %.78s is now compiled into PHP.", "zzmeow", arg);
        RETURN_STRINGL(strg, len, 0);
}

# 修改成
PHP_FUNCTION(array_square_sum)
{
    zval *array_data;
    HashTable *ht_data;
    int ret;
    char *key;
    uint index;
    zval **pdata;
    double sum = 0;

    if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "a", &array_data) == FAILURE) {
        return;
    }

     ht_data = Z_ARRVAL_P(array_data);
    zend_hash_internal_pointer_reset(ht_data);

    while (HASH_KEY_NON_EXISTANT != (ret = zend_hash_get_current_key(ht_data, &key, &index, 0))) {

        ret = zend_hash_get_current_data(ht_data, &pdata);

        if (Z_TYPE_P(*pdata) == IS_LONG) {
            sum += Z_LVAL_P(*pdata) * Z_LVAL_P(*pdata);
        } else {
            RETURN_FALSE;
        }

        zend_hash_move_forward(ht_data);
    }

    zend_hash_internal_pointer_end(Z_ARRVAL_P(array_data));
    RETVAL_DOUBLE(sum);
}

5.phpize 编译

find / -name php-config #查找本地php-config路径
./configure --with-php-config=/usr/local/php/bin/php-config
 make && make install

 ll /usr/local/php/lib/php/extensions/no-debug-non-zts-20121212/

6.php.ini 添加扩展

vim php/etc/php.ini

[array_square_sum]
extension=array_square_sum.so

引用

https://www.cnblogs.com/martinjinyu/articles/3663410.html
https://blog.csdn.net/2301_77162959/article/details/130928012