Online PHP editor | rfc for 2Av0v

@ 2014-08-13T23:02:42Z

<?php

function pack_encode($val) {
	$str = '';
	while ($val > 0) {
		$str .= chr($val & 0xFF);
		$val = $val >> 8;
	}
	// "/" json-encodes poorly and "=" is padding
	return str_replace(
		array('/', '='),
		array('_', ''),
		base64_encode($str)
	);
}

for ($i=0; $i<32; $i++) {
	echo pack_encode((1<<$i) + 1) . "\n";
}

/*
$arr = array();
$packed = pack('N', 32767);
for ($i=0; $i<strlen($packed); $i++) {
	$arr[$i] = ord($packed[$i]);
}
print_r($arr);

function pack_encode($val) {
	$b64 = base64_encode(pack($format, $val));
	return str_replace(array('/', '='), array('_', ''), $b64); // "/" json-encodes poorly and "=" is padding
}

function pack_decode($bin) {
	$b64 = str_replace('_', '/', $bin); // un-padded
	$data = unpack('C'.(length($bin)/2), base64_decode($b64, false));
	$val = 0;
	foreach ($data as $v) {
		$val = ($val<<$width) | $v;
	}
	return $val;
}

$max = 32767;
$n = 20;
$step = intval($max/$n);

for ($i=0; $i<=$n; $i++) {
	$val = $i*$step;
	$enc = pack_encode($val);
	$dec = pack_decode($val);
	echo "$enc $dec $val\n";
}
*/

Output for git.master, git.master_jit, rfc.property-hooks: Ag Aw BQ CQ EQ IQ QQ gQ AQE AQI AQQ AQg ARA ASA AUA AYA AQAB AQAC AQAE AQAI AQAQ AQAg AQBA AQCA AQAAAQ AQAAAg AQAABA AQAACA AQAAEA AQAAIA AQAAQA AQAAgA

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2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn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2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0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2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions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