First experience using php8's extended arginfo generation tool-PHP8-php.cn

php8 provides a very convenient tool for generating extension function or class parameter information.

You only need to maintain a copy of xyz.stub.php, and you can use tools to generate xyz_arginfo.h.

There is no doubt that this method lowers the threshold for the development and extension of phper and makes it easier to maintain.

Get started experience:

Generate extended skeleton.

cd ext
php ext_skel.php --ext test

Add a function and change test.stub.php.

<?php

/** @generate-function-entries */

function test1(): void {}

function test2(string $str = ""): string {}

function test3(int $integer = 123): int {}

Regenerate test_arginfo.h.

php ../../build/gen_stub.php test.stub.php

Related commits can be clicked here (https://github.com/php/php-src/compare/master...nikic:php-stubs )

Write a simple extension example to implement the all and any functions in python through PHP extension.

Preparation.

Download the latest source code of php
Already installed php

Generate the extended skeleton.

cd ext
php ext_skel.php --ext python

Write the function prototype and edit `python.stub.php`.

<?php

/** @generate-function-entries */

function all(array $arr): bool {}

function any(array $arr): bool {}

Generate `python_arginfo.h` based on `python.stub.php`.

php ../../build/gen_stub.php python.stub.php

To implement function logic, edit `python.c`.

PHP_FUNCTION(all)
{
    zval *input;
    zval *item;
    int result = 1, item_result = 1;
    HashTable *htbl;

    ZEND_PARSE_PARAMETERS_START(1, 1)
        Z_PARAM_ARRAY(input)
    ZEND_PARSE_PARAMETERS_END();

    htbl = Z_ARRVAL_P(input);

    ZEND_HASH_FOREACH_VAL(htbl, item) {
        item_result = zend_is_true(item);
        result &= item_result;
    } ZEND_HASH_FOREACH_END();

    RETURN_BOOL(result);
}

/* {{{ void any() */
PHP_FUNCTION(any)
{
    zval *input;
    zval *item;
    int result = 0, item_result = 0;
    HashTable *htbl;

    ZEND_PARSE_PARAMETERS_START(1, 1)
        Z_PARAM_ARRAY(input)
    ZEND_PARSE_PARAMETERS_END();

    htbl = Z_ARRVAL_P(input);

    ZEND_HASH_FOREACH_VAL(htbl, item) {
        item_result = zend_is_true(item);
        result |= item_result;
    } ZEND_HASH_FOREACH_END();

    RETURN_BOOL(result);
}

Write unit tests, edit `002.phpt` and `003.phpt`, create new `004.phpt` and `005.phpt`.

--TEST--
Check all function true case
--SKIPIF--
<?php
if (!extension_loaded(&#39;python&#39;)) {
    echo &#39;skip&#39;;
}
?>
--FILE--
<?php
var_dump(all([]));
var_dump(all([1]));
var_dump(all([-1, 1, &#39;1&#39;]));
?>
--EXPECT--
bool(true)
bool(true)
bool(true)

--TEST--
Check all function false case
--SKIPIF--
<?php
if (!extension_loaded(&#39;python&#39;)) {
    echo &#39;skip&#39;;
}
?>
--FILE--
<?php
var_dump(all([&#39;0&#39;]));
var_dump(all([0]));
var_dump(all([&#39;&#39;]));
var_dump(all([false]));
var_dump(all([1, -1, 100, false]));
var_dump(all([0, -1, 100, 1]));
var_dump(all([&#39;1&#39;, -1, &#39;&#39;, 100, 1]));
?>
--EXPECT--
bool(false)
bool(false)
bool(false)
bool(false)
bool(false)
bool(false)
bool(false)

--TEST--
Check any function true case
--SKIPIF--
<?php if (!extension_loaded(&#39;python&#39;)) {
    echo &#39;skip&#39;;
}
?>
--FILE--
<?php var_dump(any([&#39;a&#39;, &#39;b&#39;, &#39;c&#39;, &#39;d&#39;]));
var_dump(any([[&#39;a&#39;, &#39;b&#39;, &#39;&#39;, &#39;d&#39;]]));
var_dump(any([[&#39;&#39;, &#39;b&#39;, &#39;c&#39;, &#39;d&#39;]]));
var_dump(any([[&#39;a&#39;, &#39;b&#39;, &#39;c&#39;, &#39;&#39;]]));
?>
--EXPECT--
bool(true)
bool(true)
bool(true)
bool(true)

--TEST--
Check all function false case
--SKIPIF--
<?php if (!extension_loaded(&#39;python&#39;)) {
    echo &#39;skip&#39;;
}
?>
--FILE--
<?php var_dump(any([&#39;0&#39;]));
var_dump(any([0]));
var_dump(any([&#39;&#39;]));
var_dump(any([false]));
var_dump(any([0, &#39;0&#39;, &#39;&#39;, false]));
?>
--EXPECT--
bool(false)
bool(false)
bool(false)
bool(false)
bool(false)

Compile, test and install

./configure && make
make test
sudo make install

Add to php.ini

php -i | grep ini # 定位你的php.ini文件

Join

extension=python.so

Check if successful

php -m | grep python

Actual test

php -r "var_dump(all([]));“
php -r "var_dump(any([]));"

PHP8 has added a lot of useful macros and features.

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