我一直在寻找官方的 php 文档，但找不到我要找的东西。
http://php.net/manual/en/function.parse-ini-file.php
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
【问题讨论】：
您可以简单地将parse_ini_file 与 PHP4/5 一起使用。
$ini_array = parse_ini_file("sample.ini");
print_r($ini_array);
这里是文档：http://php.net/manual/en/function.parse-ini-file.php
要将一组对象写回 ini 文件，请使用以下方法作为一个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);
}
}
【讨论】：
[section1] lines [section2] lines 一起使用吗？
PEAR Config_Lite 包可以超级轻松地为您完成几乎所有的工作（包括阅读和写作）。在这里查看：http://pear.php.net/package/Config_Lite
【讨论】：
这个怎么样：
$key='option';
$val='1.2.3.4.5';
system("sed -ie 's/\({$key}=\)\(.*\)/\1{$val}/' file.in");
【讨论】：
下面是 PHP 目前缺少的 write_ini_file() 的实现，它将创建一个几乎相同的输入（除了 cmets）：
PHP_EOL) 在部分之间添加新行。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;
}
}
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"
使用示例：
// 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);
生成的.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
【讨论】：
这是一个创建可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;
});
}
【讨论】：
这是您使用类别选项读写INI文件的函数！
如果您提供多维数组，您的 INI 文件中将包含类别。 或者基本数组可以让你快速读写数据。
详情请参阅下面的 cmets 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);
【讨论】：
您可以简单地使用ini_set('lu_link','#000000'); 或ini_get('lu_link')。
【讨论】：