(PHP 4 >= 4.2.0, PHP 5, PHP 7, PHP 8)
ini_get_all — Gets all configuration options
Returns all the registered configuration options.
Returns an associative array with directive name as the array key.
Returns false and raises an E_WARNING level error
if the extension doesn't exist.
When details is true (default) the array will
contain global_value (set in
php.ini), local_value (perhaps set with
ini_set() or .htaccess), and
access (the access level).
When details is false the value will be the
current value of the option.
See the manual section for information on what access levels mean.
Note:
It's possible for a directive to have multiple access levels, which is why
accessshows the appropriate bitmask values.
Example #1 ini_get_all() examples
<?php
print_r(ini_get_all("pcre"));
print_r(ini_get_all());
?>The above example will output something similar to:
Array
(
[pcre.backtrack_limit] => Array
(
[global_value] => 100000
[local_value] => 100000
[access] => 7
)
[pcre.recursion_limit] => Array
(
[global_value] => 100000
[local_value] => 100000
[access] => 7
)
)
Array
(
[allow_call_time_pass_reference] => Array
(
[global_value] => 0
[local_value] => 0
[access] => 6
)
[allow_url_fopen] => Array
(
[global_value] => 1
[local_value] => 1
[access] => 4
)
...
)
Example #2 Disabling details
<?php
print_r(ini_get_all("pcre", false)); // Added in PHP 5.3.0
print_r(ini_get_all(null, false)); // Added in PHP 5.3.0
?>The above example will output something similar to:
Array
(
[pcre.backtrack_limit] => 100000
[pcre.recursion_limit] => 100000
)
Array
(
[allow_call_time_pass_reference] => 0
[allow_url_fopen] => 1
...
)
Note:
ini_get_all() ignores "array" ini options such as
pdo.dsn.*.
I guess the third entry is the required access level (to change this variable at runtime):Constant Value Meaning PHP_INI_USER 1 Entry can be set in user scripts PHP_INI_PERDIR 2 Entry can be set in php.ini, .htaccess or httpd.conf PHP_INI_SYSTEM 4 Entry can be set in php.ini or httpd.conf PHP_INI_ALL 7 Entry can be set anywhere See also the docs for ini_set()Hugo.If you want to load and parse your own ini file, have a look at parse_ini_file() function. Example:<?php// ...$my_data = parse_ini_file($my_file, true);echo recreate_php_ini();/** * Sample function to re-create a php ini config file. * * @return string */function recreate_php_ini() { $a = ini_get_all(); $data = []; foreach (array_keys($a) as $k) { $ss = split("\.", $k); if (count($ss) == 1) { $sec = "PHP"; $v = $k; } else { $sec = $ss[0]; $v = $ss[1]; } $data[$sec][$v] = $a[$k]['global_value']; } ksort($data); $out = ""; foreach ($data as $sec => $data) { $out .= "[$sec]\n"; ksort($data); foreach ($data as $k => $v) { if (is_numeric($v)) { $out .= sprintf("%-40s = %s\n", $k, $v); } else { $out .= sprintf("%-40s = \"%s\"\n", $k, $v); } } $out .= "\n"; } return $out;}You can use the following snippet on servers to grab the live/staging configs in order to be able to replicate those in your development environment. (I use `php -a` for this) <?phpforeach (ini_get_all(null, false) as $key => $value) echo "$key=$value;\n";?>Since a certain PHP version (I think it's 5.2.5) it is no longer possible to override INI entrys set with php_admin_* in httpd.conf. The access level will be set to 4 (PHP_INI_SYSTEM), which is also returned by this function.The constants mentioned below are available in PHP, but without the prefix (e.g. INI_USER, INI_PERDIR).