PHP Learning Notes PHP Expansion Development tutorial

Let's assume that we need such an extension to provide a function called tao_string, whose main function is to return a paragraph of characters. The corresponding PHP code may be like this:

The code is as follows	Copy Code
function tao_string ($STR) { $result = $str; return $result; }

The first step is to generate the code
PHP provides a tool ext_skel similar to the code generator in order to extend the convenience of development, and can refer to Php.net's official instructions (https://svn.php.net/repository/php/php-src/trunk/ Readme. Ext_skel).

Create a file Tao.skel, it's content is

String tao_string (String str)

is to tell Ext_skel this thing, the extension we're going to do has a function called tao_string. And then execute

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CD mooenv/src/php-5.3.8/ext/ ./ext_skel--extname=tao--proto=tao.skel CD tao/

At this point, Tao's extended code frame is already out.

Step two, modify the configuration
Then modify the config.m4 file to delete the first dnl of lines 10, 11, 123, which is to

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DNL Php_arg_with (TAO, for Tao Support, DNL Make sure this comment is aligned: DNL [--with-tao Include Tao support]) Amended to Php_arg_with (TAO, for Tao Support, Make sure this comment is aligned: [--with-tao Include Tao support])

Step three, realize the function
Modify Source TAO.C File
Find the Tao_string This function is modified to

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Php_function (tao_string) { char *str = NULL; int argc = Zend_num_args (); int str_len; Char *result; if (Zend_parse_parameters (argc tsrmls_cc, "s", &str, &str_len) = = failure) Return Str_len = spprintf (&result, 0, "Wo shi%.78s", str); Return_stringl (result, str_len, 0); }

Step fourth, compile the extension
After saving, start compiling

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/usr/local/php/bin/phpize ./configure--with-php-config=/usr/local/php/bin/php-config Make

Step Fifth, add extension
At this point, if everything goes well, the extension is already in modules/tao.so. The following is to add this extension to PHP, so that we can invoke PHP program to.

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CP modules/tao.so/usr/local/php/ext/ Vim/usr/local/php/etc/php.ini extension=/usr/local/php/ext/tao.so #在php. ini file finally add this line Service PHP-FPM Restart #重启PHP服务 CP tao.php/data/www/wwwroot/default/

You can then access the tao.php file and test the