Online PHP editor | rfc for nb3mE

@ 2015-07-27T19:47:31Z

<?php
$initial_precision = ini_get('precision');

// JSON
echo "JSON\n";
$j = '{ "v": 0.1234567890123456789 }';
echo "precision: " . $initial_precision . "\n";
var_dump(json_encode(json_decode($j)));
ini_set('precision', 30);
$d = json_decode($j);
var_dump(json_encode(json_decode($j)));
var_dump($d->v);

// SERIALIZE
echo "SERIALIZE\n";
$a = 0.1234567890123456789;
echo serialize($a) . "\n";

echo "-- UNSERIALIZE\n";
ini_set('precision', $initial_precision);
echo "precision: " . ini_get('precision') . "\n";
$s = "d:0.1234567890123456789;";
var_dump(unserialize($s));
// ini precision for var_dump
ini_set('precision', 30);
echo "precision: " . ini_get('precision') . "\n";
var_dump(unserialize($s));

// serialize precision
echo "serialize_precision: " . ini_get('serialize_precision') . "\n";
echo "-- SERIALIZE\n";
echo serialize(unserialize($s)) . "\n";
ini_set('serialize_precision', 30);
echo "serialize_precision: " . ini_get('serialize_precision') . "\n";
echo serialize(unserialize($s)) . "\n";

Output for git.master, git.master_jit, rfc.property-hooks: JSON precision: 14 string(25) "{"v":0.12345678901234568}" string(25) "{"v":0.12345678901234568}" float(0.12345678901234568) SERIALIZE d:0.12345678901234568; -- UNSERIALIZE precision: 14 float(0.12345678901234568) precision: 30 float(0.12345678901234568) serialize_precision: -1 -- SERIALIZE d:0.12345678901234568; serialize_precision: 30 d:0.1234567890123456773698862321;

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2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn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2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0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2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions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