如何使用 PHP 读写 ini 文件
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How to read and write to an ini file with PHP
提问by Joricam
I've been looking around the official php documentation but I'm unable to find what I'm looking for.
我一直在浏览官方的 php 文档，但找不到我要找的东西。
http://php.net/manual/en/function.parse-ini-file.php
http://php.net/manual/en/function.parse-ini-file.php
I just want a function to edit and read the value from the php ini file, for instance,
我只想要一个函数来编辑和读取 php ini 文件中的值，例如，
[default_colors]
sitebg = #F8F8F8
footerbg = #F8F8F8
link = #F8F8F8
url = #F8F8F8
bg = #F8F8F8
text = #F8F8F8
border = #F8F8F8
lu_link = #F8F8F8
lu_url = #F8F8F8
lu_bg = #F8F8F8
lu_text = #f505f5
lu_border = #F8F8F8
- How do I read the value belonging to "lu_link" or "footerbg"?
- How to I write a new value for these places?
- 如何读取属于“lu_link”或“footerbg”的值？
- 如何为这些地方写一个新值？
采纳答案by Winfield Trail
The PEAR Config_Lite package can do almost all the work (both reading and writing) for you super-easily. Check it out here: http://pear.php.net/package/Config_Lite
PEAR Config_Lite 包可以非常轻松地为您完成几乎所有的工作（读取和写入）。在这里查看：http: //pear.php.net/package/Config_Lite
回答by Teoman Soygul
You can simply use parse_ini_filewith PHP4/5.
您可以简单地parse_ini_file与 PHP4/5 一起使用。
$ini_array = parse_ini_file("sample.ini");
print_r($ini_array);
Here is the doc: http://php.net/manual/en/function.parse-ini-file.php
这是文档：http: //php.net/manual/en/function.parse-ini-file.php
To write back an array of objects back to the ini file, use below as a very fast & easy solution:
要将一组对象写回 ini 文件，请使用以下作为非常快速且简单的解决方案：
function write_php_ini($array, $file)
{
$res = array();
foreach($array as $key => $val)
{
if(is_array($val))
{
$res[] = "[$key]";
foreach($val as $skey => $sval) $res[] = "$skey = ".(is_numeric($sval) ? $sval : '"'.$sval.'"');
}
else $res[] = "$key = ".(is_numeric($val) ? $val : '"'.$val.'"');
}
safefilerewrite($file, implode("\r\n", $res));
}
function safefilerewrite($fileName, $dataToSave)
{ if ($fp = fopen($fileName, 'w'))
{
$startTime = microtime(TRUE);
do
{ $canWrite = flock($fp, LOCK_EX);
// If lock not obtained sleep for 0 - 100 milliseconds, to avoid collision and CPU load
if(!$canWrite) usleep(round(rand(0, 100)*1000));
} while ((!$canWrite)and((microtime(TRUE)-$startTime) < 5));
//file was locked so now we can store information
if ($canWrite)
{ fwrite($fp, $dataToSave);
flock($fp, LOCK_UN);
}
fclose($fp);
}
}
回答by George Martynenko
How about this:
这个怎么样：
$key='option';
$val='1.2.3.4.5';
system("sed -ie 's/\({$key}=\)\(.*\)/{$val}/' file.in");
回答by Lawrence Cherone
Below is an implementation of write_ini_file()which PHP is currently lacking, it will create an almost identical (except comments) of the input:
以下是write_ini_file()PHP 当前缺乏的实现，它将创建几乎相同的输入（注释除外）：
- Supports cross platform (
PHP_EOL) new lines added between sections. - Handles both index and key value arrays.
- Handles CONSTANT style values.
- And file locking to stay consistent.
- 支持跨平台 (
PHP_EOL) 在部分之间添加新行。 - 处理索引和键值数组。
- 处理 CONSTANT 样式值。
- 和文件锁定保持一致。
Source
来源
<?php
if (!function_exists('write_ini_file')) {
/**
* Write an ini configuration file
*
* @param string $file
* @param array $array
* @return bool
*/
function write_ini_file($file, $array = []) {
// check first argument is string
if (!is_string($file)) {
throw new \InvalidArgumentException('Function argument 1 must be a string.');
}
// check second argument is array
if (!is_array($array)) {
throw new \InvalidArgumentException('Function argument 2 must be an array.');
}
// process array
$data = array();
foreach ($array as $key => $val) {
if (is_array($val)) {
$data[] = "[$key]";
foreach ($val as $skey => $sval) {
if (is_array($sval)) {
foreach ($sval as $_skey => $_sval) {
if (is_numeric($_skey)) {
$data[] = $skey.'[] = '.(is_numeric($_sval) ? $_sval : (ctype_upper($_sval) ? $_sval : '"'.$_sval.'"'));
} else {
$data[] = $skey.'['.$_skey.'] = '.(is_numeric($_sval) ? $_sval : (ctype_upper($_sval) ? $_sval : '"'.$_sval.'"'));
}
}
} else {
$data[] = $skey.' = '.(is_numeric($sval) ? $sval : (ctype_upper($sval) ? $sval : '"'.$sval.'"'));
}
}
} else {
$data[] = $key.' = '.(is_numeric($val) ? $val : (ctype_upper($val) ? $val : '"'.$val.'"'));
}
// empty line
$data[] = null;
}
// open file pointer, init flock options
$fp = fopen($file, 'w');
$retries = 0;
$max_retries = 100;
if (!$fp) {
return false;
}
// loop until get lock, or reach max retries
do {
if ($retries > 0) {
usleep(rand(1, 5000));
}
$retries += 1;
} while (!flock($fp, LOCK_EX) && $retries <= $max_retries);
// couldn't get the lock
if ($retries == $max_retries) {
return false;
}
// got lock, write data
fwrite($fp, implode(PHP_EOL, $data).PHP_EOL);
// release lock
flock($fp, LOCK_UN);
fclose($fp);
return true;
}
}
Example input .inifile (taken from http://php.net/manual/en/function.parse-ini-file.php)
示例输入.ini文件（取自http://php.net/manual/en/function.parse-ini-file.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"
Example usage:
用法示例：
// load ini file values into array
$config = parse_ini_file('config.ini', true);
// add some additional values
$config['main']['foobar'] = 'baz';
$config['main']['const']['a'] = 'UPPERCASE';
$config['main']['const']['b'] = 'UPPER_CASE WITH SPACE';
$config['main']['array'][] = 'Some Value';
$config['main']['array'][] = 'ADD';
$config['third_section']['urls']['docs'] = 'http://php.net';
// write ini file
write_ini_file('config.ini', $config);
Resulting .inifile:
结果.ini文件：
[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"
urls[docs] = "http://php.net"
[main]
foobar = "baz"
const[a] = UPPERCASE
const[b] = "UPPER_CASE WITH SPACE"
array[] = "Some Value"
array[] = ADD
回答by Eddie
Here's a functional version that creates a string that can be written to a file.
这是一个创建可以写入文件的字符串的功能版本。
function IniAsStr(array $a) : string
{
return array_reduce(array_keys($a), function($str, $sectionName) use ($a) {
$sub = $a[$sectionName];
return $str . "[$sectionName]" . PHP_EOL .
array_reduce(array_keys($sub), function($str, $key) use($sub) {
return $str . $key . '=' . $sub[$key] . PHP_EOL;
}) . PHP_EOL;
});
}
回答by Tarik
Here is your function to read and write INIfiles with a category option!
这是您使用类别选项读取和写入 INI文件的功能！
If you provide multi dimensional array, you will have category in your INI file. Or basic array will allow you to read and write data fast.
如果您提供多维数组，您的 INI 文件中将包含类别。或者基本数组将允许您快速读取和写入数据。
See the comments and example below for details:
有关详细信息，请参阅下面的评论和示例：
### PHP write_ini_file function to use with parse_ini_file: (choose one of the two example arrays below...)
$array = array('category' => array('color' => 'blue', 'size' => 'large'));
// $array = array('color' => 'red', 'size' => 'small');
function write_ini_file($array, $path) {
unset($content, $arrayMulti);
# See if the array input is multidimensional.
foreach($array AS $arrayTest){
if(is_array($arrayTest)) {
$arrayMulti = true;
}
}
# Use categories in the INI file for multidimensional array OR use basic INI file:
if ($arrayMulti) {
foreach ($array AS $key => $elem) {
$content .= "[" . $key . "]\n";
foreach ($elem AS $key2 => $elem2) {
if (is_array($elem2)) {
for ($i = 0; $i < count($elem2); $i++) {
$content .= $key2 . "[] = \"" . $elem2[$i] . "\"\n";
}
} else if ($elem2 == "") {
$content .= $key2 . " = \n";
} else {
$content .= $key2 . " = \"" . $elem2 . "\"\n";
}
}
}
} else {
foreach ($array AS $key2 => $elem2) {
if (is_array($elem2)) {
for ($i = 0; $i < count($elem2); $i++) {
$content .= $key2 . "[] = \"" . $elem2[$i] . "\"\n";
}
} else if ($elem2 == "") {
$content .= $key2 . " = \n";
} else {
$content .= $key2 . " = \"" . $elem2 . "\"\n";
}
}
}
if (!$handle = fopen($path, 'w')) {
return false;
}
if (!fwrite($handle, $content)) {
return false;
}
fclose($handle);
return true;
}
write_ini_file($array,'./data.ini');
$readData = parse_ini_file('./data.ini',true);
print_r($readData);
回答by user1989405
You can simply use ini_set('lu_link','#000000');or ini_get('lu_link').
您可以简单地使用ini_set('lu_link','#000000');或ini_get('lu_link')。
I feel, if you have limited PHP experience, it's not good to mess with the .inifile.
我觉得，如果你的PHP经验有限，那么乱乱.ini文件是不好的。
