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PAL.C.T MINI SHELL
files >> /proc/self/root/proc/self/root/opt/php-7.0.1/ext/pcre/tests/
upload
files >> //proc/self/root/proc/self/root/opt/php-7.0.1/ext/pcre/tests/preg_replace_callback.phpt

--TEST--
preg_replace_callback()
--FILE--
<?php
$input = "plain [indent] deep [indent] [abcd]deeper[/abcd] [/indent] deep [/indent] plain"; 

function parseTagsRecursive($input)
{
    
    $regex = '#\[indent]((?:[^[]|\[(?!/?indent])|(?R))+)\[/indent]#';

    if (is_array($input)) {
        $input = '<div style="margin-left: 10px">'.$input[1].'</div>';
    }

    return preg_replace_callback($regex, 'parseTagsRecursive', $input);
}

$output = parseTagsRecursive($input);

echo $output, "\n";

?>
--EXPECT--
plain <div style="margin-left: 10px"> deep <div style="margin-left: 10px"> [abcd]deeper[/abcd] </div> deep </div> plain
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