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15 years ago
Here is another version that parses the print_r() output. I tried the one posted, but I had difficulties with it. I believe it has a problem with nested arrays. This handles nested arrays without issue as far as I can tell. 



<?php

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;

    }

}



?>
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