PHP parse_ini_file函数的应用与扩展操作示例

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：

[first_section]
one = 1
two = 2
name = test
[second_section]
path = '/tmp/test'
url = 'http://test.com/login.php'
[third_section]
php_version[] = '5.0'
php_version[] = '5.1'
php_version[] = '5.5'
[dictionary]
foo[debug] = true
foo[path] = /some/path
[fourth_section]
fold1.fold2.fold3 = 'a'
fold1.fold2.fold4 = 'b'
fold1.fold2.fold5 = 'b'

下面是PHP文件内容：

function parse_ini_file_multi($file, $process_sections = false, $scanner_mode = INI_SCANNER_NORMAL){ $explode_str = '.'; $escape_char = "'"; $data = parse_ini_file($file, $process_sections, $scanner_mode); if (!$process_sections) {  $data = array($data); } foreach ($data as $section_key => $section) {  foreach($section as $key => $value){   if(strpos($key, $explode_str)){    if(substr($key, 0, 1) !== $escape_char){     $sub_keys = explode($explode_str, $key);     $subs =& $data[$section_key];     echo "/r/n".'========='."/r/n";     print_r($subs);     print_r($data);     foreach($sub_keys as $sub_key){      if (!isset($subs[$sub_key])) {       $subs[$sub_key] = [];      }      $subs =& $subs[$sub_key];      echo "/r/n".'++++++++'."/r/n";      print_r($subs);      print_r($data);     }     $subs = $value;     echo "/r/n".'----------'."/r/n";     print_r($subs);     print_r($data);     unset($data[$section_key][$key]);    }else{     $new_key = trim($key, $escape_char);     $data[$section_key][$new_key] = $value;     unset($data[$section_key][$key]);    }   }  } } if (!$process_sections) {  $data = $data[0]; } return $data;}$arr = parse_ini_file('file.ini');print_r($arr);echo "/r/n".'================='."/r/n";$arr = parse_ini_file_multi('file.ini',true);echo "/r/n".'================='."/r/n";print_r($arr);

运行结果：

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 ) ) ) )

希望本文所述对大家PHP程序设计有所帮助。