[php-src] Issue #11611: emulate C macro

Issue: https://github.com/php/php-src/issues/11611 Author: SVGAnimate ### Description Hello, I would like to emulate this C [macro](https://docs.gtk.org/glib/func.DEFINE_QUARK.html) in a php extension. I clearly noted that the documentation indicates : > This function is not directly available to language bindings. But I want to be closer to C API and so be available to convert PHP code to C. This will allow me to replace [GObject Builder](https://www.jirka.org/gob.html) with a powerful tool (php) By this way, this code : ```php <?php G_DEFINE_QUARK ("QN", "q_n"); q_n_quark(); ``` will be equivalent to : ```php <?php function q_n_quark() { return "QN" } q_n_quark(); ``` <hr/> To achieve this I have extended zend_module_entry like this : ```C typedef struct _php_g_module_entry { zend_module_entry parent_instance; struct _zend_function_entry *additional_functions;// Need to be freed } php_g_module_entry; ``` So, instead of : ```C zend_module_entry glib_module_entry = { STANDARD_MODULE_HEADER, "glib", glib_functions, PHP_MINIT(glib), PHP_MSHUTDOWN(glib), PHP_RINIT(glib), PHP_RSHUTDOWN(glib), PHP_MINFO(glib), PHP_GLIB_VERSION, STANDARD_MODULE_PROPERTIES }; ``` I write : ```C php_g_module_entry glib_module_entry = {{ STANDARD_MODULE_HEADER, "glib", glib_functions, PHP_MINIT(glib), PHP_MSHUTDOWN(glib), PHP_RINIT(glib), PHP_RSHUTDOWN(glib), PHP_MINFO(glib), PHP_GLIB_VERSION, STANDARD_MODULE_PROPERTIES }, .additional_functions : NULL /* Holder of dynamic functions defined by G_DEFINE_QUARK() */ }; ``` A call to zend_register_functions() in PHP_FUNCTION(G_DEFINE_QUARK) and you're done. <hr/> Is this the right way to do it ? ***Can you confirm I do not missed something ?*** <hr/> > If eval() is the answer, you're almost certainly asking the > wrong question. -- Rasmus Lerdorf, BDFL of PHP ```php <?php function G_DEFINE_QUARK ($QN, $q_n) { eval("function {$q_n}_quark() { return '$QN'; }"); } G_DEFINE_QUARK('no warning in ZEND_GET_MODULE: initialization from incompatible pointer type', 'q_n'); echo q_n_quark(); ```