Implemented to build empty php extension in Rust

examples/helloworld/src/lib.rs

@@ -0,0 +1,53 @@
+#![allow(unused_variables)]
+#![feature(link_args)]
+
+extern crate libc;
+extern crate php;
+
+use libc::*;
+use php::*;
+use php::info::*;
+
+#[link_args = "-Wl,-undefined,dynamic_lookup"]
+extern {
+
+}
+
+macro_rules! c_str {
+    ($s:expr) => { {
+        concat!($s, "\0").as_ptr() as *const c_char
+    } }
+}
+
+#[no_mangle]
+pub extern fn php_module_startup(type_: c_int, module_number: c_int) -> c_int {
+   0 
+}
+
+#[no_mangle]
+pub extern fn php_module_shutdown(type_: c_int, module_number: c_int) -> c_int {
+   0 
+}
+
+#[no_mangle]
+pub extern fn php_module_info() {
+    print_table_start();
+    unsafe {
+        php_info_print_table_row(2, c_str!("A demo PHP extension written in Rust"), c_str!("enabled"));
+    }
+    print_table_end();
+}
+
+
+#[no_mangle]
+pub extern fn get_module() -> *mut zend::Module {
+
+    let mut entry = Box::new(zend::Module::new(
+        c_str!("demo"),
+        c_str!("0.1.0-dev"),
+    ));
+
+    entry.set_info_func(php_module_info);
+
+    Box::into_raw(entry)
+}