这篇文章主要介绍了PHP parse_ini_file函数的应用与扩展操作,结合实例形式分析了php扩展parse_ini_file函数解析配置文件相关操作技巧,需要的朋友可以参考下

本文实例讲述了PHP parse_ini_file函数的应用与扩展操作，分享给大家供大家参考，具体如下：

parse_ini_file($filename, $process_sections = false, $scanner_mode = INI_SCANNER_NORMAL)解析一个配置文件。

filename要解析的文件名；

process_sections设置为true时，得到一个多维数组，包括配置文件中每一节的名称和设置，默认为false;

解析成功返回关联数组，失败返回false。列举一下官网的例子，也引用了官网的扩展实例parse_ini_file_multi()。

下面是配置文件内容：

1. [first_section]
2. one = 1
3. two = 2
4. name = test
5. [second_section]
6. path = '/tmp/test'
7. url = 'http://test.com/login.php'
8. [third_section]
9. php_version[] = '5.0'
10. php_version[] = '5.1'
11. php_version[] = '5.5'
12. [dictionary]
13. foo[debug] = true
14. foo[path] = /some/path
15. [fourth_section]
16. fold1.fold2.fold3 = 'a'
17. fold1.fold2.fold4 = 'b'
18. fold1.fold2.fold5 = 'b'

下面是PHP文件内容：

1. function parse_ini_file_multi($file, $process_sections = false, $scanner_mode = INI_SCANNER_NORMAL){
2. $explode_str = '.';
3. $escape_char = "'";
4. $data = parse_ini_file($file, $process_sections, $scanner_mode);
5. if (!$process_sections) {
6. $data = array($data);
7. }
8. foreach ($data as $section_key => $section) {
9. foreach($section as $key => $value){
10. if(strpos($key, $explode_str)){
11. if(substr($key, 0, 1) !== $escape_char){
12. $sub_keys = explode($explode_str, $key);
13. $subs =& $data[$section_key];
14. echo "\r\n".'========='."\r\n";
15. print_r($subs);
16. print_r($data);
17. foreach($sub_keys as $sub_key){
18. if (!isset($subs[$sub_key])) {
19. $subs[$sub_key] = [];
20. }
21. $subs =& $subs[$sub_key];
22. echo "\r\n".'++++++++'."\r\n";
23. print_r($subs);
24. print_r($data);
25. }
26. $subs = $value;
27. echo "\r\n".'----------'."\r\n";
28. print_r($subs);
29. print_r($data);
30. unset($data[$section_key][$key]);
31. }else{
32. $new_key = trim($key, $escape_char);
33. $data[$section_key][$new_key] = $value;
34. unset($data[$section_key][$key]);
35. }
36. }
37. }
38. }
39. if (!$process_sections) {
40. $data = $data[0];
41. }
42. return $data;
43. }
44. $arr = parse_ini_file('file.ini');
45. print_r($arr);
46. echo "\r\n".'================='."\r\n";
47. $arr = parse_ini_file_multi('file.ini',true);
48. echo "\r\n".'================='."\r\n";
49. print_r($arr);

运行结果：

1. Array ( [one] => 1 [two] => 2 [name] => test [path] => /tmp/test [url] => http://test.com/login.php [php_version] => Array ( [0] => 5.0 [1] => 5.1 [2] => 5.5 ) [foo] => Array ( [debug] => 1 [path] => /some/path ) [fold1.fold2.fold3] => a [fold1.fold2.fold4] => b [fold1.fold2.fold5] => b ) ================= ========= Array ( [fold1.fold2.fold3] => a [fold1.fold2.fold4] => b [fold1.fold2.fold5] => b ) Array ( [first_section] => Array ( [one] => 1 [two] => 2 [name] => test ) [second_section] => Array ( [path] => /tmp/test [url] => http://test.com/login.php ) [third_section] => Array ( [php_version] => Array ( [0] => 5.0 [1] => 5.1 [2] => 5.5 ) ) [dictionary] => Array ( [foo] => Array ( [debug] => 1 [path] => /some/path ) ) [fourth_section] => Array ( [fold1.fold2.fold3] => a [fold1.fold2.fold4] => b [fold1.fold2.fold5] => b ) ) ++++++++ Array ( ) Array ( [first_section] => Array ( [one] => 1 [two] => 2 [name] => test ) [second_section] => Array ( [path] => /tmp/test [url] => http://test.com/login.php ) [third_section] => Array ( [php_version] => Array ( [0] => 5.0 [1] => 5.1 [2] => 5.5 ) ) [dictionary] => Array ( [foo] => Array ( [debug] => 1 [path] => /some/path ) ) [fourth_section] => Array ( [fold1.fold2.fold3] => a [fold1.fold2.fold4] => b [fold1.fold2.fold5] => b [fold1] => Array ( ) ) ) ++++++++ Array ( ) Array ( [first_section] => Array ( [one] => 1 [two] => 2 [name] => test ) [second_section] => Array ( [path] => /tmp/test [url] => http://test.com/login.php ) [third_section] => Array ( [php_version] => Array ( [0] => 5.0 [1] => 5.1 [2] => 5.5 ) ) [dictionary] => Array ( [foo] => Array ( [debug] => 1 [path] => /some/path ) ) [fourth_section] => Array ( [fold1.fold2.fold3] => a [fold1.fold2.fold4] => b [fold1.fold2.fold5] => b [fold1] => Array ( [fold2] => Array ( ) ) ) ) ++++++++ Array ( ) Array ( [first_section] => Array ( [one] => 1 [two] => 2 [name] => test ) [second_section] => Array ( [path] => /tmp/test [url] => http://test.com/login.php ) [third_section] => Array ( [php_version] => Array ( [0] => 5.0 [1] => 5.1 [2] => 5.5 ) ) [dictionary] => Array ( [foo] => Array ( [debug] => 1 [path] => /some/path ) ) [fourth_section] => Array ( [fold1.fold2.fold3] => a [fold1.fold2.fold4] => b [fold1.fold2.fold5] => b [fold1] => Array ( [fold2] => Array ( [fold3] => Array ( ) ) ) ) ) ---------- aArray ( [first_section] => Array ( [one] => 1 [two] => 2 [name] => test ) [second_section] => Array ( [path] => /tmp/test [url] => http://test.com/login.php ) [third_section] => Array ( [php_version] => Array ( [0] => 5.0 [1] => 5.1 [2] => 5.5 ) ) [dictionary] => Array ( [foo] => Array ( [debug] => 1 [path] => /some/path ) ) [fourth_section] => Array ( [fold1.fold2.fold3] => a [fold1.fold2.fold4] => b [fold1.fold2.fold5] => b [fold1] => Array ( [fold2] => Array ( [fold3] => a ) ) ) ) ========= Array ( [fold1.fold2.fold4] => b [fold1.fold2.fold5] => b [fold1] => Array ( [fold2] => Array ( [fold3] => a ) ) ) Array ( [first_section] => Array ( [one] => 1 [two] => 2 [name] => test ) [second_section] => Array ( [path] => /tmp/test [url] => http://test.com/login.php ) [third_section] => Array ( [php_version] => Array ( [0] => 5.0 [1] => 5.1 [2] => 5.5 ) ) [dictionary] => Array ( [foo] => Array ( [debug] => 1 [path] => /some/path ) ) [fourth_section] => Array ( [fold1.fold2.fold4] => b [fold1.fold2.fold5] => b [fold1] => Array ( [fold2] => Array ( [fold3] => a ) ) ) ) ++++++++ Array ( [fold2] => Array ( [fold3] => a ) ) Array ( [first_section] => Array ( [one] => 1 [two] => 2 [name] => test ) [second_section] => Array ( [path] => /tmp/test [url] => http://test.com/login.php ) [third_section] => Array ( [php_version] => Array ( [0] => 5.0 [1] => 5.1 [2] => 5.5 ) ) [dictionary] => Array ( [foo] => Array ( [debug] => 1 [path] => /some/path ) ) [fourth_section] => Array ( [fold1.fold2.fold4] => b [fold1.fold2.fold5] => b [fold1] => Array ( [fold2] => Array ( [fold3] => a ) ) ) ) ++++++++ Array ( [fold3] => a ) Array ( [first_section] => Array ( [one] => 1 [two] => 2 [name] => test ) [second_section] => Array ( [path] => /tmp/test [url] => http://test.com/login.php ) [third_section] => Array ( [php_version] => Array ( [0] => 5.0 [1] => 5.1 [2] => 5.5 ) ) [dictionary] => Array ( [foo] => Array ( [debug] => 1 [path] => /some/path ) ) [fourth_section] => Array ( [fold1.fold2.fold4] => b [fold1.fold2.fold5] => b [fold1] => Array ( [fold2] => Array ( [fold3] => a ) ) ) ) ++++++++ Array ( ) Array ( [first_section] => Array ( [one] => 1 [two] => 2 [name] => test ) [second_section] => Array ( [path] => /tmp/test [url] => http://test.com/login.php ) [third_section] => Array ( [php_version] => Array ( [0] => 5.0 [1] => 5.1 [2] => 5.5 ) ) [dictionary] => Array ( [foo] => Array ( [debug] => 1 [path] => /some/path ) ) [fourth_section] => Array ( [fold1.fold2.fold4] => b [fold1.fold2.fold5] => b [fold1] => Array ( [fold2] => Array ( [fold3] => a [fold4] => Array ( ) ) ) ) ) ---------- bArray ( [first_section] => Array ( [one] => 1 [two] => 2 [name] => test ) [second_section] => Array ( [path] => /tmp/test [url] => http://test.com/login.php ) [third_section] => Array ( [php_version] => Array ( [0] => 5.0 [1] => 5.1 [2] => 5.5 ) ) [dictionary] => Array ( [foo] => Array ( [debug] => 1 [path] => /some/path ) ) [fourth_section] => Array ( [fold1.fold2.fold4] => b [fold1.fold2.fold5] => b [fold1] => Array ( [fold2] => Array ( [fold3] => a [fold4] => b ) ) ) ) ========= Array ( [fold1.fold2.fold5] => b [fold1] => Array ( [fold2] => Array ( [fold3] => a [fold4] => b ) ) ) Array ( [first_section] => Array ( [one] => 1 [two] => 2 [name] => test ) [second_section] => Array ( [path] => /tmp/test [url] => http://test.com/login.php ) [third_section] => Array ( [php_version] => Array ( [0] => 5.0 [1] => 5.1 [2] => 5.5 ) ) [dictionary] => Array ( [foo] => Array ( [debug] => 1 [path] => /some/path ) ) [fourth_section] => Array ( [fold1.fold2.fold5] => b [fold1] => Array ( [fold2] => Array ( [fold3] => a [fold4] => b ) ) ) ) ++++++++ Array ( [fold2] => Array ( [fold3] => a [fold4] => b ) ) Array ( [first_section] => Array ( [one] => 1 [two] => 2 [name] => test ) [second_section] => Array ( [path] => /tmp/test [url] => http://test.com/login.php ) [third_section] => Array ( [php_version] => Array ( [0] => 5.0 [1] => 5.1 [2] => 5.5 ) ) [dictionary] => Array ( [foo] => Array ( [debug] => 1 [path] => /some/path ) ) [fourth_section] => Array ( [fold1.fold2.fold5] => b [fold1] => Array ( [fold2] => Array ( [fold3] => a [fold4] => b ) ) ) ) ++++++++ Array ( [fold3] => a [fold4] => b ) Array ( [first_section] => Array ( [one] => 1 [two] => 2 [name] => test ) [second_section] => Array ( [path] => /tmp/test [url] => http://test.com/login.php ) [third_section] => Array ( [php_version] => Array ( [0] => 5.0 [1] => 5.1 [2] => 5.5 ) ) [dictionary] => Array ( [foo] => Array ( [debug] => 1 [path] => /some/path ) ) [fourth_section] => Array ( [fold1.fold2.fold5] => b [fold1] => Array ( [fold2] => Array ( [fold3] => a [fold4] => b ) ) ) ) ++++++++ Array ( ) Array ( [first_section] => Array ( [one] => 1 [two] => 2 [name] => test ) [second_section] => Array ( [path] => /tmp/test [url] => http://test.com/login.php ) [third_section] => Array ( [php_version] => Array ( [0] => 5.0 [1] => 5.1 [2] => 5.5 ) ) [dictionary] => Array ( [foo] => Array ( [debug] => 1 [path] => /some/path ) ) [fourth_section] => Array ( [fold1.fold2.fold5] => b [fold1] => Array ( [fold2] => Array ( [fold3] => a [fold4] => b [fold5] => Array ( ) ) ) ) ) ---------- bArray ( [first_section] => Array ( [one] => 1 [two] => 2 [name] => test ) [second_section] => Array ( [path] => /tmp/test [url] => http://test.com/login.php ) [third_section] => Array ( [php_version] => Array ( [0] => 5.0 [1] => 5.1 [2] => 5.5 ) ) [dictionary] => Array ( [foo] => Array ( [debug] => 1 [path] => /some/path ) ) [fourth_section] => Array ( [fold1.fold2.fold5] => b [fold1] => Array ( [fold2] => Array ( [fold3] => a [fold4] => b [fold5] => b ) ) ) ) ================= Array ( [first_section] => Array ( [one] => 1 [two] => 2 [name] => test ) [second_section] => Array ( [path] => /tmp/test [url] => http://test.com/login.php ) [third_section] => Array ( [php_version] => Array ( [0] => 5.0 [1] => 5.1 [2] => 5.5 ) ) [dictionary] => Array ( [foo] => Array ( [debug] => 1 [path] => /some/path ) ) [fourth_section] => Array ( [fold1] => Array ( [fold2] => Array ( [fold3] => a [fold4] => b [fold5] => b ) ) ) )