比方说,我有一个来自某个源的输出,我无法访问PHP创建的原始数组。
Array
(
[products] => Array
(
[name] => Arduino Nano Version 3.0 mit ATMEGA328P
[id] => 10005
)
[listings] => Array
(
[category] =>
[title] => This is the first line
This is the second line
[subtitle] => This is the first subtitle
This is the second subtitle
[price] => 24.95
[quantity] =>
[stock] =>
[shipping_method] => Slow and cheap
[condition] => New
[defects] =>
)
[table_count] => 2
[tables] => Array
(
[0] => products
[1] => listings
)
)
现在我想输入这些数据,然后让一个算法重新创建它所打印的原始数组,这样我就可以将其用于我自己的应用程序。
目前我正在考虑用一个 sub_str()
和regex语句来提取数据并将其适当放置. 在我继续前进之前,有没有更简单的方法,通过已经写好的代码或php插件来实现?
function print_r_reverse($in) {
$lines = explode("\n", trim($in));
if (trim($lines[0]) != 'Array') {
// bottomed out to something that isn't an array
return $in;
} else {
// this is an array, lets parse it
if (preg_match("/(\s{5,})\(/", $lines[1], $match)) {
// this is a tested array/recursive call to this function
// take a set of spaces off the beginning
$spaces = $match[1];
$spaces_length = strlen($spaces);
$lines_total = count($lines);
for ($i = 0; $i < $lines_total; $i++) {
if (substr($lines[$i], 0, $spaces_length) == $spaces) {
$lines[$i] = substr($lines[$i], $spaces_length);
}
}
}
array_shift($lines); // Array
array_shift($lines); // (
array_pop($lines); // )
$in = implode("\n", $lines);
// make sure we only match stuff with 4 preceding spaces (stuff for this array and not a nested one)
preg_match_all("/^\s{4}\[(.+?)\] \=\> /m", $in, $matches, PREG_OFFSET_CAPTURE | PREG_SET_ORDER);
$pos = array();
$previous_key = '';
$in_length = strlen($in);
// store the following in $pos:
// array with key = key of the parsed array's item
// value = array(start position in $in, $end position in $in)
foreach ($matches as $match) {
$key = $match[1][0];
$start = $match[0][1] + strlen($match[0][0]);
$pos[$key] = array($start, $in_length);
if ($previous_key != '') $pos[$previous_key][1] = $match[0][1] - 1;
$previous_key = $key;
}
$ret = array();
foreach ($pos as $key => $where) {
// recursively see if the parsed out value is an array too
$ret[$key] = print_r_reverse(substr($in, $where[0], $where[1] - $where[0]));
}
return $ret;
}
}
不是我的代码,在这里的注释中找到。print_r'Matt'是老板
我也为你的问题研究出了一个解决方案,因为它是一个非常有用的工具,可以在Stack Overflow上重新创建问题。我的源码在这里。https:/github.cometalonaprp。
我的做法有点不同:在你的字符串中,你不需要换行,所以我在字符中穿行。有一个缺点:如果你的数组值中有括号或小括号,那就不行了。