3v4l.org

run code in 300+ PHP versions simultaneously

@ 2013-06-17T17:29:16Z

<?php

$text = "foo {
    bar tree;
    bar ball/sand;
    snafu {
        string;
    }
    random {
        nested {
            value;
            bohica;
        }
		nested again {
			foo;
			bar;
		}
    }
}";

$buf = "";
$brace_level = 0;
$words = array();
for ($i = 0; $i < strlen($text); $i++) {
    switch ($text[$i]) {
        case '{':
            $words[$brace_level] = trim($buf);
            $buf = "";
            $brace_level++;
            break;
        case '}':
            $brace_level--;
            unset($words[$brace_level]);
            break;
        case ';':
            $words[$brace_level] = trim($buf);
            $buf = "";
            ksort($words);
            print implode(" ", $words)."\n";
            break;
        default:
            $buf .= $text[$i];
    }
}

Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.35, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6: foo bar tree foo bar ball/sand foo snafu string foo random nested value foo random nested bohica foo random nested again foo foo random nested again bar

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224.4 ms | 406 KiB | 373 Q