php获取linux命令结果的实例

1. publicfunctionget_server_ip(){
2. if(PHP_SAPI==='cli'){
3. $buffer="";
4. $handle=popen("ifconfigeth0|grep'inetaddr'|awk-F'[:]''{print$13}'",'r');
5. while(!feof($handle)){
6. $buffer.=fgets($handle);
7. }
8. pclose($handle);
9. $server_ip=rtrim($buffer);
10. }else{
11. if(isset($_SERVER)){
12. if($_SERVER['SERVER_ADDR']){
13. $server_ip=$_SERVER['SERVER_ADDR'];
14. }else{
15. $server_ip=$_SERVER['LOCAL_ADDR'];
16. }//phpfensi.com
17. }else{
18. $server_ip=getenv('SERVER_ADDR');
19. }
20. }
21. return$server_ip;
22. }