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parse_ini_file

(PHP 4, PHP 5)

parse_ini_file -- Parse a configuration file

Description

array parse_ini_file ( string filename [, bool process_sections] )

parse_ini_file() loads in the ini file specified in filename, and returns the settings in it in an associative array. By setting the last process_sections parameter to TRUE, you get a multidimensional array, with the section names and settings included. The default for process_sections is FALSE

Note: This function has nothing to do with the php.ini file. It is already processed, the time you run your script. This function can be used to read in your own application's configuration files.

Note: If a value in the ini file contains any non-alphanumeric characters it needs to be enclosed in double-quotes (").

Note: Since PHP 4.2.1 this function is also affected by safe mode and open_basedir.

Note: As of PHP 5.0 this function also handles new lines in values.

Note: There are reserved words which must not be used as keys for ini files. These include: null, yes, no, true, and false. Values null, no and false results in "", yes and true results in "1". Characters {}|&~![()" must not be used anywhere in the key and have a special meaning in the value.

The structure of the ini file is similar to that of the php.ini's.

Constants may also be parsed in the ini file so if you define a constant as an ini value before running parse_ini_file(), it will be integrated into the results. Only ini values are evaluated. For example:

Example 1. Contents of sample.ini

; This is a sample configuration file
; Comments start with ';', as in php.ini

[first_section]
one = 1
five = 5
animal = BIRD

[second_section]
path = "/usr/local/bin"
URL = "http://www.example.com/~username"

Example 2. parse_ini_file() example

<?php

define('BIRD', 'Dodo bird');

// Parse without sections
$ini_array = parse_ini_file("sample.ini");
print_r($ini_array);

// Parse with sections
$ini_array = parse_ini_file("sample.ini", true);
print_r($ini_array);

?>

Would produce: 

Array
(
    [one] => 1
    [five] => 5
    [animal] => Dodo bird
    [path] => /usr/local/bin
    [URL] => http://www.example.com/~username
)
Array
(
    [first_section] => Array
        (
            [one] => 1
            [five] => 5
            [animal] = Dodo bird
        )

    [second_section] => Array
        (
            [path] => /usr/local/bin
            [URL] => http://www.example.com/~username
        )

)

Keys and section names consisting from numbers are evaluated as PHP integers thus numbers starting by 0 are evaluated as octals and numbers starting by 0x are evaluated as hexadecimals.

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