parse_ini_file

(PHP 4, PHP 5, PHP 7, PHP 8)

parse_ini_fileLegge un file di configurazione

Descrizione

parse_ini_file(string $filename, bool $process_sections = false, int $scanner_mode = INI_SCANNER_NORMAL): array

parse_ini_file() carica il file ini specificato da filename, e restituisce le impostazioni in esso in un array associativo.

La struttura del file ini è la stessa del php.ini.

Elenco dei parametri

filename

Il nome del file ini da processare. Se viene utilizzato un percorso relativo, viene valutato rispetto alla directory di lavoro corrente, quindi l' include_path.

process_sections

Impostando il parametro process_sections a true, si ottiene un array multi-dimensionale con i nomi delle sezioni e le impostazioni incluse. Per default process_sections è impostato a false

scanner_mode

Può essere INI_SCANNER_NORMAL (default) o INI_SCANNER_RAW. Se viene fornito INI_SCANNER_RAW, i valori delle opzioni non verranno analizzati.

As of PHP 5.6.1 can also be specified as INI_SCANNER_TYPED. In this mode boolean, null and integer types are preserved when possible. String values "true", "on" and "yes" are converted to true. "false", "off", "no" and "none" are considered false. "null" is converted to null in typed mode. Also, all numeric strings are converted to integer type if it is possible.

Valori restituiti

Le impostazioni vengono restituite come un array associativo in caso di successo e false in caso di fallimento.

Esempi

Example #1 Contenuto di sample.ini

; Questo è un esempio di file di configurazione
; I commenti cominciano con ';', come in php.ini

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

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

[third_section]
phpversion[] = "5.0"
phpversion[] = "5.1"
phpversion[] = "5.2"
phpversion[] = "5.3"

urls[svn] = "http://svn.php.net"
urls[git] = "http://git.php.net"

Example #2 Esempio di parse_ini_file()

Le costanti (ma non le "costanti magiche" come __FILE__) possono anche essere lette in un file ini, quindi se si definisce una costante come un valore di file ini prima di eseguire parse_ini_file(), essa verrà integrata nei risultati. Vengono valutati solo i valori ini e il valore deve essere solo la costante. Per esempio:

<?php

define
('BIRD''Dodo bird');

// Lettura senza sezioni
$ini_array parse_ini_file("sample.ini");
print_r($ini_array);

// Lettura con sezioni
$ini_array parse_ini_file("sample.ini"true);
print_r($ini_array);

?>

Il precedente esempio visualizzerà qualcosa simile a:

Array
(
    [one] => 1
    [five] => 5
    [animal] => Dodo bird
    [path] => /usr/local/bin
    [URL] => http://www.example.com/~username
    [phpversion] => Array
        (
            [0] => 5.0
            [1] => 5.1
            [2] => 5.2
            [3] => 5.3
        )

    [urls] => Array
        (
            [svn] => http://svn.php.net
            [git] => http://git.php.net
        )

)
Array
(
    [first_section] => Array
        (
            [one] => 1
            [five] => 5
            [animal] => Dodo bird
        )

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

    [third_section] => Array
        (
            [phpversion] => Array
                (
                    [0] => 5.0
                    [1] => 5.1
                    [2] => 5.2
                    [3] => 5.3
                )

            [urls] => Array
                (
                    [svn] => http://svn.php.net
                    [git] => http://git.php.net
                )

        )

)

Example #3 Leggere un file php.ini con parse_ini_file()

<?php
// Una semplice funzione utilizzata per confrontare i risultati di seguito
function yesno($expression)
{
    return(
$expression 'Yes' 'No');
}

// Ottieni il percorso per php.ini usando la funzione
// php_ini_loaded_file() disponibile da PHP 5.2.4
$ini_path php_ini_loaded_file();

// Legge il file php.ini
$ini parse_ini_file($ini_path);

// Stampa e confronta i valori, nota che l'uso di get_cfg_var()
// darà gli stessi risultati per la lettura ed il caricamento qui
echo '(parsed) magic_quotes_gpc = ' yesno($ini['magic_quotes_gpc']) . PHP_EOL;
echo 
'(loaded) magic_quotes_gpc = ' yesno(get_cfg_var('magic_quotes_gpc')) . PHP_EOL;
?>

Il precedente esempio visualizzerà qualcosa simile a:

(parsed) magic_quotes_gpc = Yes
(loaded) magic_quotes_gpc = Yes

Example #4 interpolazione di valori

Oltre a valutare le costanti, alcuni caratteri hanno un significato speciale in un valore ini. Inoltre, le variabili di ambiente e i valori definiti in precedenza possono essere letti utilizzando la sintassi ${}.

; | viene utilizzato per l'OR bit a bit
three = 2|3

; & viene utilizzato per l'AND bit a bit
four = 6&5

; ^ viene utilizzato per lo XOR bit a bit
five = 3^6

; ~ viene utilizzato per la negazione bit a bit
negative_two = ~1

; () viene utilizzato per il raggruppamento
seven = (8|7)&(6|5)

; \ viene utilizzato per effettuare l'escape di un valore.
newline_is = "\\n" ; Restituisce la stringa "\n", non un carattere di nuova riga.
with quotes = "She said \"Exactly my point\"." ; Restituisce una stringa con virgolette.

path = ${PATH}
also_five = ${five}

Il precedente esempio visualizzerà qualcosa simile a:

(parsed) magic_quotes_gpc = Yes
(loaded) magic_quotes_gpc = Yes

Note

Nota:

Questa funzione non è collegata con il file php.ini. Esso è già elaborato al momento in cui gira lo script. Questa funzione può essere utilizzata per leggere i file di configurazione propri dell'applicazione.

Nota:

Se un valore nel file ini contiene caratteri non alfanumerici, esso deve essere delimitato dai doppi apici (").

Nota: Ci sono parole riservate che non devono essere usate come chiavi per i file ini. Queste includono: null, yes, no, true, false, on, off, none. I valori null, off, no e false producono "", e i valori on, yes e true producono "1", salvo che non venga usata la modalità INI_SCANNER_TYPED (a partire da PHP 5.6.1). I caratteri ?{}|&~!()^" non devono essere utilizzati da nessuna parte nella chiave e hanno un significato speciale nel valore.

Nota:

Le voci senza segno di uguale vengono ignorate. Ad esempio, "foo" viene ignorato mentre "bar =" viene caricato e aggiunto con un valore vuoto. Ad esempio, MySQL ha un'impostazione "no-auto-rehash" nel file my.cnf che non accetta un valore, quindi viene ignorato.

Nota:

I file ini sono generalmente trattati come testo normale dai server web e quindi forniti ai browser se richiesto. Ciò significa che per sicurezza bisogna mantenere i propri file ini fuori dalla propria docroot o riconfigurare il proprio server web per non servirli. La mancata esecuzione di uno di questi può introdurre un rischio per la sicurezza.

Vedere anche:

add a note add a note

User Contributed Notes 15 notes

up
26
jeremygiberson at gmail dot com
13 years ago
Here is a quick parse_ini_file wrapper to add extend support to save typing and redundancy.
<?php
   
/**
     * Parses INI file adding extends functionality via ":base" postfix on namespace.
     *
     * @param string $filename
     * @return array
     */
   
function parse_ini_file_extended($filename) {
       
$p_ini = parse_ini_file($filename, true);
       
$config = array();
        foreach(
$p_ini as $namespace => $properties){
            list(
$name, $extends) = explode(':', $namespace);
           
$name = trim($name);
           
$extends = trim($extends);
           
// create namespace if necessary
           
if(!isset($config[$name])) $config[$name] = array();
           
// inherit base namespace
           
if(isset($p_ini[$extends])){
                foreach(
$p_ini[$extends] as $prop => $val)
                   
$config[$name][$prop] = $val;
            }
           
// overwrite / set current namespace values
           
foreach($properties as $prop => $val)
           
$config[$name][$prop] = $val;
        }
        return
$config;
    }
?>

Treats this ini:
<?php
/*
[base]
host=localhost
user=testuser
pass=testpass
database=default

[users:base]
database=users

[archive : base]
database=archive
*/
?>
As if it were like this:
<?php
/*
[base]
host=localhost
user=testuser
pass=testpass
database=default

[users:base]
host=localhost
user=testuser
pass=testpass
database=users

[archive : base]
host=localhost
user=testuser
pass=testpass
database=archive
*/
?>
up
11
Rekam
8 years ago
You may want, in some very special cases, to parse multi-dimensional array with N levels in your ini file. Something like setting[data][config][debug] = true will result in an error (expected "=").

Here's a little function to match this, using dots (customizable).
<?php
function parse_ini_file_multi($file, $process_sections = false, $scanner_mode = INI_SCANNER_NORMAL) {
   
$explode_str = '.';
   
$escape_char = "'";
   
// load ini file the normal way
   
$data = parse_ini_file($file, $process_sections, $scanner_mode);
    if (!
$process_sections) {
       
$data = array($data);
    }
    foreach (
$data as $section_key => $section) {
       
// loop inside the section
       
foreach ($section as $key => $value) {
            if (
strpos($key, $explode_str)) {
                if (
substr($key, 0, 1) !== $escape_char) {
                   
// key has a dot. Explode on it, then parse each subkeys
                    // and set value at the right place thanks to references
                   
$sub_keys = explode($explode_str, $key);
                   
$subs =& $data[$section_key];
                    foreach (
$sub_keys as $sub_key) {
                        if (!isset(
$subs[$sub_key])) {
                           
$subs[$sub_key] = [];
                        }
                       
$subs =& $subs[$sub_key];
                    }
                   
// set the value at the right place
                   
$subs = $value;
                   
// unset the dotted key, we don't need it anymore
                   
unset($data[$section_key][$key]);
                }
               
// we have escaped the key, so we keep dots as they are
               
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;
}
?>

The following file:
<?php
/*
[normal]
foo = bar
; use quotes to keep your key as it is
'foo.with.dots' = true

[array]
foo[] = 1
foo[] = 2

[dictionary]
foo[debug] = false
foo[path] = /some/path

[multi]
foo.data.config.debug = true
foo.data.password = 123456
*/
?>

will result in:
<?php
parse_ini_file_multi
('file.ini', true);

Array
(
    [
normal] => Array
        (
            [
foo] => bar
           
[foo.with.dots] => 1
       
)
    [array] => Array
        (
            [
foo] => Array
                (
                    [
0] => 1
                   
[1] => 2
               
)
        )
    [
dictionary] => Array
        (
            [
foo] => Array
                (
                    [
debug] =>
                    [
path] => /some/path
               
)
        )
    [
multi] => Array
        (
            [
foo] => Array
                (
                    [
data] => Array
                        (
                            [
config] => Array
                                (
                                    [
debug] => 1
                               
)
                            [
password] => 123456
                       
)
                )
        )
)
?>
up
8
simon dot riget at gmail dot com
9 years ago
.ini files or JSON file format as it is also known as, are very useful format to store stuff in. Especially large arrays.

Strangely enough there is this nice function to read the file, but no function to write it.

So here is one.

Use it as:  put_ini_file(string $file, array $array)

<?php
function put_ini_file($file, $array, $i = 0){
 
$str="";
  foreach (
$array as $k => $v){
    if (
is_array($v)){
     
$str.=str_repeat(" ",$i*2)."[$k]".PHP_EOL;
     
$str.=put_ini_file("",$v, $i+1);
    }else
     
$str.=str_repeat(" ",$i*2)."$k = $v".PHP_EOL;
  }
if(
$file)
    return
file_put_contents($file,$str);
  else
    return
$str;
}
?>
up
4
Justin Hall
15 years ago
This is a simple (but slightly hackish) way of avoiding the character limitations (in values):

<?php
define
('QUOTE', '"');
$test = parse_ini_file('test.ini');

echo
"<pre>";
print_r($test);
?>

contents of test.ini:

park yesterday = "I (walked) | {to} " QUOTE"the"QUOTE " park yesterday & saw ~three~ dogs!"

output:

<?php
Array
(
    [
park yesterday] => I (walked) | {to} "the" park yesterday & saw ~three~ dogs!
)
?>
up
2
dschnepper at box dot com
6 years ago
The documentation states:
Characters ?{}|&~!()^" must not be used anywhere in the key and have a special meaning in the value.

Here's the results of my experiments on what they mean:

; | is used for bitwise OR
three = 2|3

; & is used for bitwise AND
four = 6&5

; ^ is used for bitwise XOR
five = 3^6

; ~ is used for bitwise negate
negative_two = ~1

; () is used for grouping
seven = (8|7)&(6|5)

; ${...} is used for grabbing values from the environment, or previously defined values.
path = ${PATH}
also = ${five}

; ? I have no guess for
; ! I have no guess for
up
3
YAPs
6 years ago
This function for save ini files

<?php
function array_to_ini($array,$out="")
{
   
$t="";
   
$q=false;
    foreach(
$array as $c=>$d)
    {
        if(
is_array($d))$t.=array_to_ini($d,$c);
        else
        {
            if(
$c===intval($c))
            {
                if(!empty(
$out))
                {
                   
$t.="\r\n".$out." = \"".$d."\"";
                    if(
$q!=2)$q=true;
                }
                else
$t.="\r\n".$d;
            }
            else
            {   
               
$t.="\r\n".$c." = \"".$d."\"";
               
$q=2;
            }
        }
    }
    if(
$q!=true && !empty($out)) return "[".$out."]\r\n".$t;
    if(!empty(
$out)) return  $t;
    return
trim($t);
}

function
save_ini_file($array,$file)
{
   
$a=array_to_ini($array);
   
$ffl=fopen($file,"w");
   
fwrite($ffl,$a);
   
fclose($ffl);
}
?>
up
2
www.onphp5.com
14 years ago
Looks like in PHP 5.3.0 special characters like \n are extrapolated into real newlines. Gotta use \\n.
up
2
kieran dot huggins at rogers dot com
19 years ago
Just a quick note for all those running into trouble escaping double quotes:

I got around this by "base64_encode()"-ing my content on the way in to the ini file, and "base64_decode()"-ing on the way out.

Because base64 uses the "=" sign, you will have to encapsulate the entire value in double quotes so the line looks like this:

    varname = "TmlhZ2FyYSBGYWxscywgT04="

When base64'd, your strings will retain all \n, \t...etc...  URL's retain everything perfectly :-)

I hope some of you find this useful!

Cheers, Kieran
up
3
goulven.ch AT gmail DOT com
14 years ago
Warning: parse_ini_files cannot cope with values containing the equal sign (=).

The following function supports sections, comments, arrays, and key-value pairs outside of any section.
Beware that similar keys will overwrite one another (unless in different sections).

<?php
function parse_ini ( $filepath ) {
   
$ini = file( $filepath );
    if (
count( $ini ) == 0 ) { return array(); }
   
$sections = array();
   
$values = array();
   
$globals = array();
   
$i = 0;
    foreach(
$ini as $line ){
       
$line = trim( $line );
       
// Comments
       
if ( $line == '' || $line{0} == ';' ) { continue; }
       
// Sections
       
if ( $line{0} == '[' ) {
           
$sections[] = substr( $line, 1, -1 );
           
$i++;
            continue;
        }
       
// Key-value pair
       
list( $key, $value ) = explode( '=', $line, 2 );
       
$key = trim( $key );
       
$value = trim( $value );
        if (
$i == 0 ) {
           
// Array values
           
if ( substr( $line, -1, 2 ) == '[]' ) {
               
$globals[ $key ][] = $value;
            } else {
               
$globals[ $key ] = $value;
            }
        } else {
           
// Array values
           
if ( substr( $line, -1, 2 ) == '[]' ) {
               
$values[ $i - 1 ][ $key ][] = $value;
            } else {
               
$values[ $i - 1 ][ $key ] = $value;
            }
        }
    }
    for(
$j=0; $j<$i; $j++ ) {
       
$result[ $sections[ $j ] ] = $values[ $j ];
    }
    return
$result + $globals;
}
?>

Example usage:
<?php
$stores
= parse_ini('stores.ini');
print_r( $stores );
?>

An example ini file:
<?php
/*
;Commented line start with ';'
global_value1 = a string value
global_value1 = another string value

; empty lines are discarded
[Section1]
key = value
; whitespace around keys and values is discarded too
otherkey=other value
otherkey=yet another value
; this key-value pair will overwrite the former.
*/
?>
up
1
info () gaj ! design
5 years ago
Not mentioned in the documentation, this function acts like include:

"Files are included based on the file path given or, if none is given, the include_path specified. If the file isn't found in the include_path, include will finally check in the calling script's own directory and the current working directory before failing."

(At least for PHP 7; have not checked PHP 5.)
up
1
jbricci at ya-right dot com
6 years ago
This core function won't handle ini key[][] = value(s), (multidimensional arrays), so if you need to support that kind of setup you will need to write your own function. one way to do it is to convert all the key = value(s) to array string [key][][]=value(s), then use parse_str() to convert all those [key][][]=value(s) that way you just read the ini file line by line, instead of doing crazy foreach() loops to handle those (multidimensional arrays) in each section, example...

ini file...... config.php

<?php

; 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"

[third_section]
phpversion[] = "5.0"
phpversion[] = "5.1"
phpversion[] = "5.2"
phpversion[] = "5.3"

urls[svn] = "http://svn.php.net"
urls[git] = "http://git.php.net"

[fourth_section]

a[][][] = b
a
[][][][] = c
a
[test_test][][] = d
test
[one][two][three] = true

?>

echo parse_ini_file ( "C:\\services\\www\\docs\\config.php" );

results in...

// PHP Warning:  syntax error, unexpected TC_SECTION, expecting '=' line 27 -> a[][][] = b

Here it simple function that handles (multidimensional arrays) without looping each key[][]= value(s)

<?php

function getIni ( $file, $sections = FALSE )
{
   
$return = array ();

   
$keeper = array ();

   
$config = fopen ( $file, 'r' );

    while ( !
feof ( $config ) )
    {
       
$line = trim ( fgets ( $config, 1024 ) );

       
$line = ( $line == '' ) ? ' ' : $line;

        switch (
$line{0} )
        {
            case
' ':
            case
'#':
            case
'/':
            case
';':
            case
'<':
            case
'?':

            break;

            case
'[':

            if (
$sections )
            {
               
$header = 'config[' . trim ( substr ( $line, 1, -1 ) ) . ']';
            }
            else
            {
               
$header = 'config';
            }

            break;

            default:

           
$kv = array_map ( 'trim', explode ( '=', $line ) );

           
$kv[0] = str_replace ( ' ', '+', $kv[0] );

           
$kv[1] = str_replace ( ' ', '+', $kv[1] );

            if ( (
$pos = strpos ( $kv[0], '[' ) ) !== FALSE )
            {
               
$kv[0] = '[' . substr ( $kv[0], 0, $pos ) . ']' . substr ( $kv[0], $pos );
            }
            else
            {
               
$kv[0] = '[' . $kv[0] . ']';
            }

           
$bt = strtolower ( $kv[1] );

            if (
in_array ( $bt, array ( 'true', 'false', 'on', 'off' ) ) )
            {
               
$kv[1] = ( $bt == 'true' || $bt == 'on' ) ? TRUE : FALSE;
            }

           
$keeper[] = $header . $kv[0] . '=' . $kv[1];
        }
    }

   
fclose ( $config );

   
parse_str ( implode ( '&', $keeper ), $return );

    return
$return['config'];
}

// usage...

$sections = TRUE;

print_r ( $config->getIni ( "C:\\services\\www\\docs\\config.php" ),  $sections );

?>
up
1
dimk at pisem dot net
17 years ago
Class to access ini values at format "section_name.property", for example $myconf->get("system.name") returns a property "name" in section "system":

<?php
class Settings {

var
$properties = array();

    function
Settings() {
       
$this->properties = parse_ini_file(_SETTINGS_FILE, true);
    }

    function
get($name) {
        if(
strpos($name, ".")) {
            list(
$section_name, $property) = explode(".", $name);
           
$section =& $this->properties[$section_name];
           
$name = $property;
        } else {
           
$section =& $properties;
        }

        if(
is_array($section) && isset($section[$name])) {
            return
$section[$name];
        }
        return
false;
    }

}
?>
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2
waikeatNOSPAM at archerlogic dot com
18 years ago
I found that this function will not work on remote files.
I tried

$someArray = parse_ini_file("http://www.example.com/setting.ini");

and it reports

Cannot Open 'http://www.example.com/setting.ini' for reading ...
up
0
Rubn Martnez
4 years ago
The parse_ini_file function does have trouble loading valid Windows ini files like, for example, nternet shortcuts (.url files).

This is due to the function reading the URLs as a value, and failing when it finds that valid URL characters like '=' appear unescaped or the value unquoted as a whole. Since Windows does not escape them anyway, the solution is to scan it in raw mode, where it will read unparsed the value after the first '='. Since = only appears in URLs with parameters, this mistake may is not be obvious at a first glance.

An example

<?php

$links
= array();

// ...

$files = scandir($directory);
foreach(
$files as $filename )
{
    if (
strToLower(pathinfo($filename, PATHINFO_EXTENSION)) === 'url')
    {
       
$shortcut = parse_ini_file( $directory.DIRECTORY_SEPARATOR.$filename, trueINI_SCANNER_RAW);
        if (
$shortcut === false) die('Syntax Error');
       
$url = $shortcut['InternetShortcut']['URL'];
       
$links []= $url;
    }
}

?>
up
0
yarco dot w at gmail dot com
15 years ago
parse_ini_file can't deal with const which cancate a string. For example, if test.ini file is

classPath = ROOT/lib

If you:
<?php
define
('ROOT', dirname(__FILE__));

$buf = parse_ini_file('test.ini');
?>

const ROOT would't be parsed.

But my version could work find.

<?php
// array parse_ini_file ( string $filename [, bool $process_sections] )
function parse_ini($filename, $process_sections = false)
{
  function
replace_process(& $item, $key, $consts)
  {
   
$item = str_replace(array_keys($consts), array_values($consts), $item);
  }

 
$buf = get_defined_constants(true); // PHP version > 5.0
 
$consts = $buf['user'];
 
$ini = parse_ini_file($filename, $process_sections);

 
array_walk_recursive($ini, 'replace_process', $consts);
  return
$ini;
}

define('ROOT', '/test');
print_r(parse_ini(dirname(__FILE__).'/test.ini'));

?>
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