PHP를 사용하여 so 라이브러리 파일의 코드를 호출합니다.

1  /**
 2   * hello.c
 3   * To compile, use following commands:
 4   *   gcc -O -c -fPIC -o hello.o hello.c 
 5   *   gcc -shared -o libhello.so hello.o
 6   */
 7  
 8  int hello_add(int a, int b)
 9  {
10      return a + b;
11  }

1 ___FCKpd___1nbsp;gcc -O -c -fPIC -o hello.o hello.c
2 ___FCKpd___1nbsp;gcc -shared -o libhello.so hello.o
3 ___FCKpd___1nbsp;su
4 # echo /usr/local/lib > /etc/ld.so.conf.d/local.conf
5 # cp libhello.so /usr/local/lib
6 # /sbin/ldconfig

 1/**
 2  * hellotest.c
 3  * To compile, use following commands:
 4  *   gcc -o hellotest -lhello hellotest.c
 5  */
 6 #include <stdio.h>
 7 int main()
 8 {
 9     int a = 3, b = 4;
10     printf("%d + %d = %d/n", a, b, hello_add(a,b));
11     return 0;
12 }

 $ gcc -o hellotest -lhello hellotest.c
$ ./hellotest
3 + 4 = 7

 $ tar xzvf php-5.2.3.tar.gz
$ cd php-5.2.3/ext

 $ ./ext_skel --extname=hello

 $ cd hello

1 16:  PHP_ARG_ENABLE(hello, whether to enable hello support,
2 17:  dnl Make sure that the comment is aligned:
3 18:  [  --enable-hello           Enable hello support])

 $ phpize

1PHP_FUNCTION(confirm_hello_compiled);   /* For testing, remove later. */
2 PHP_FUNCTION(hello_add);

<br/>

 1PHP_FUNCTION(hello_add)
 2 {
 3     long int a, b;
 4     long int result;
 5 
 6     if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "ll", &a, &b) == FAILURE) {
 7         return;
 8     }
 9 
10     result = hello_add(a, b);
11 
12     RETURN_LONG(result);
13 }

___FCKpd___12nbsp;./configure
 ___FCKpd___12nbsp;make LDFLAGS=-lhello
 ___FCKpd___12nbsp;su
 # cp modules/hello.so /usr/lib/php/modules

 <?php
dl("hello.so");
echo hello_add(3, 4);
?>