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@ 2017-06-06T21:25:02Z

<?php

$depth = 0;
$traverse = [0, 0, 0];
$tags = ['table', 'row', 'cell'];
$regex = [];
foreach ($tags as $key=>$tag)
    $regex[$key] = '/(\['.$tag.'((?:[\s\.\#]+[a-z]*)*)\]+[^\[]((?:.|\s)*?(?=(?:\['.$tag.')|$)))/';
    
echo var_export($tags),PHP_EOL;
echo var_export($regex),PHP_EOL;
    
$content = "[table]
    [row]
        [cell]
        [cell]
    [row]
        [cell]
        [cell]
[table]
    [row]
    [row]
        [cell]
    [row]
";
$f_parse = function($matches) use (&$depth, &$traverse, $tags, $regex, &$f_parse) {
    $traverse[++$depth]++;
    if ($depth < count($regex))
    {
        preg_replace_callback(
        	$regex[$depth],
        	$f_parse,
        	$matches[0]
    	);
    }
    /*
    echo "$depth | ${traverse[$depth]} | $tags, ${regex[$depth]}", PHP_EOL;
    $result = "";
    if ($depth < count($regex))
    {
        preg_replace_callback(
        	$regex[$depth],
        	$f_parse,
        	$matches[0]
    	);
    }
    return $result;*/
    echo $depth, ' | ', $traverse[$depth], ' | ', PHP_EOL;
    $traverse[$depth--]--;
    return $depth;
};

$content = preg_replace_callback(
	$regex[$depth],
	$f_parse,
	$content
);
echo $content, "\n";


	

	
	
	
	
	
	
	
	
?>

Output for git.master, git.master_jit, rfc.property-hooks: array ( 0 => 'table', 1 => 'row', 2 => 'cell', ) array ( 0 => '/(\\[table((?:[\\s\\.\\#]+[a-z]*)*)\\]+[^\\[]((?:.|\\s)*?(?=(?:\\[table)|$)))/', 1 => '/(\\[row((?:[\\s\\.\\#]+[a-z]*)*)\\]+[^\\[]((?:.|\\s)*?(?=(?:\\[row)|$)))/', 2 => '/(\\[cell((?:[\\s\\.\\#]+[a-z]*)*)\\]+[^\\[]((?:.|\\s)*?(?=(?:\\[cell)|$)))/', ) Warning: Undefined array key 3 in /in/KnMrE on line 27 3 | 1 | 3 | 1 | 2 | 1 | 3 | 1 | 2 | 1 | 1 | 1 | 2 | 1 | 3 | 1 | 2 | 1 | 1 | 1 | 00

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2020-03-21 RFC: Is_Literal - declined
2020-12-04 Enumerations - included in PHP 8.1
2018-06-15 Typed Properties v2 - implemented in PHP 7.4
2016-08-12 Object typehint - included in PHP 7.2
2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn
2016-04-19 Lexical scope support for anonymous classes - suspended
2016-04-17 Functional Interfaces - declined
2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0
2015-08-27 Callable Prototypes - declined
2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions
2015-02-18 Scalar type hints v5 - included in PHP 7
2015-02-14 Union Types - declined
2013-09-22 Anonymous classes - included in PHP 7

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