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@ 2014-08-14T01:54:58Z

<?php

function gdr_encode($val) {
	$chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789!=';
	$base = strlen($chars);
	$str = '';
	while ($val > 0) {
		$str .= $chars[$val % $base];
		$val = (int)($val / $base);
	}
	return $str;
}

function gdr_decode($str) {
	$chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789!=';
	$base = strlen($chars);
	$map = array();
	for ($i=0; $i<$base; $i++) {
		$map[$chars[$i]] = $i;
	}
	echo print_r($map, false) . "\n";
	$val = 0;
	for ($i=0; $i<strlen($str); $i++) {
		$val *= $base;
		$val += (int)$map[$str[$i]];
	}
	return $val;
}

//$vals = array(0, 1, 99, 100, 255, 256, 999, 1000, 9999, 10000, 65535, 65536, 99999, 100000, 999999, 1000000, 4294967295, 4294967296);
$vals = array(1);
foreach ($vals as $val) {
	$enc = json_encode(gdr_encode($val));
	$dec = json_encode(gdr_decode($enc));
	$val = json_encode($val);
	if (strlen($enc) > strlen($val)) {
		echo "$enc $val WORSE\n";
	} else if (strlen($enc) == strlen($val)) {
		echo "$enc $val EQUAL\n";
	} else {
		echo "$enc $val\n";
	}
}

Output for git.master, git.master_jit, rfc.property-hooks: Array ( [A] => 0 [B] => 1 [C] => 2 [D] => 3 [E] => 4 [F] => 5 [G] => 6 [H] => 7 [I] => 8 [J] => 9 [K] => 10 [L] => 11 [M] => 12 [N] => 13 [O] => 14 [P] => 15 [Q] => 16 [R] => 17 [S] => 18 [T] => 19 [U] => 20 [V] => 21 [W] => 22 [X] => 23 [Y] => 24 [Z] => 25 [a] => 26 [b] => 27 [c] => 28 [d] => 29 [e] => 30 [f] => 31 [g] => 32 [h] => 33 [i] => 34 [j] => 35 [k] => 36 [l] => 37 [m] => 38 [n] => 39 [o] => 40 [p] => 41 [q] => 42 [r] => 43 [s] => 44 [t] => 45 [u] => 46 [v] => 47 [w] => 48 [x] => 49 [y] => 50 [z] => 51 [0] => 52 [1] => 53 [2] => 54 [3] => 55 [4] => 56 [5] => 57 [6] => 58 [7] => 59 [8] => 60 [9] => 61 [!] => 62 [=] => 63 ) 1 Warning: Undefined array key """ in /in/vZ3HU on line 25 Warning: Undefined array key """ in /in/vZ3HU on line 25 "B" 1 WORSE

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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2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn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2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0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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