PHP 5.5.37 is released

ini_get_all

(PHP 4 >= 4.2.0, PHP 5, PHP 7)

ini_get_all获取所有配置选项

说明

array ini_get_all ([ string $extension [, bool $details = true ]] )

获取所有已注册的配置选项

参数

extension

可选的扩展名称。如果设置了,此函数仅仅返回指定该扩展的选项。

details

获取详细设置或者仅仅是每个设置的当前值。 默认是 TRUE(获取详细信息)。

返回值

返回一个关联数组,指令名称是数组的键。

detailsTRUE(默认),数组会包含 global_valuephp.ini 中的设置)、local_value(可能是 ini_set().htaccess 中的设置) 以及 access(访问级别)。

detailsFALSE,这个值会是选项的当前值。

参见手册章节中访问级别含义的信息。

Note:

指令可以有多个访问级别,这也是为什么 access 会显示适当的位掩码。

更新日志

版本 说明
5.3.0 增加参数 details

范例

Example #1 ini_get_all() 例子

<?php
print_r
(ini_get_all("pcre"));
print_r(ini_get_all());
?>

以上例程的输出类似于:

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 禁用 details

<?php
print_r
(ini_get_all("pcre"false)); // Added in PHP 5.3.0
print_r(ini_get_all(nullfalse)); // Added in PHP 5.3.0
?>

以上例程的输出类似于:

Array
(
    [pcre.backtrack_limit] => 100000
    [pcre.recursion_limit] => 100000
)
Array
(
    [allow_call_time_pass_reference] => 0
    [allow_url_fopen] => 1
    ...
)

参见

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User Contributed Notes 4 notes

up
8
justd@ntmailme
13 years ago
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.
up
1
root at mantoru dot de
8 years ago
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).
up
2
peter at peteraba dot com
6 months ago
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)
<?php
foreach (ini_get_all(null, false) as $key => $value) echo "$key=$value;\n";
?>
up
0
pmdumuid at gmail dot com
3 months ago
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;
}
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