Online PHP editor | rfc for 0GIsm

@ 2017-07-06T03:17:17Z

<?php
/*
1
2 3
4 5 - 6
- 7
*/
$a = ['d'=>1, 'l'=>&$b, 'r'=>&$c];
$b = ['d'=>2, 'l'=>&$d, 'r'=>&$e];
$c = ['d'=>3, 'l'=>null, 'r'=>&$f];
$d = ['d'=>4, 'l'=>null, 'r'=>&$g];
$e = ['d'=>5, 'l'=>null, 'r'=>null];
$f = ['d'=>6, 'l'=>null, 'r'=>null];
$g = ['d'=>7, 'l'=>null, 'r'=>null];

bfs($a);
echo "\n";
dfs($a);

function bfs($t) {
    $queue = [$t];
    while ($queue) {
        $node = array_shift($queue);
        echo $node['d'];
        if (is_array($node['l'])) {
            array_push($queue, $node['l']);
        }
        if (is_array($node['r'])) {
            array_push($queue, $node['r']);
        }
    }
}

function dfs($t) {
    $stack = [$t];
    while ($stack) {
        $node = array_pop($stack);
        echo $node['d'];
        if (is_array($node['r'])) {
            array_push($stack, $node['r']);
        }
        if (is_array($node['l'])) {
            array_push($stack, $node['l']);
        }
    }
}

Output for git.master, git.master_jit, rfc.property-hooks: 1234567 1247536

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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2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn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2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0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2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions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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