Online PHP editor | rfc for jYajv

@ 2025-11-04T21:49:11Z

<?php


// Warnings in 8.3


$n = null;
--$n; // Warning: Decrement on type null has no effect, this will change in the next major version of PHP
var_dump($n); // NULL
 
$false = false;
--$false; // Warning: Decrement on type bool has no effect, this will change in the next major version of PHP
var_dump($false); // bool(false)
++$false; // Warning: Increment on type bool has no effect, this will change in the next major version of PHP
var_dump($false); // bool(false)
 
$true = true;
--$true; // Warning: Decrement on type bool has no effect, this will change in the next major version of PHP
var_dump($true); // bool(true)
++$true; // Warning: Increment on type bool has no effect, this will change in the next major version of PHP
var_dump($true); // bool(true)


// Deprecations in 8.3


$empty = "";
--$empty; // Deprecated: Decrement on empty string is deprecated as non-numeric
var_dump($empty); // int(-1)
 
$s = "foo";
--$s; // Deprecated: Decrement on non-numeric string has no effect and is deprecated
var_dump($s); // string(3) "foo"
 
$s = "-cc";
++$s; // Deprecated: Increment on non-alphanumeric string is deprecated
var_dump($s); // string(3) "-cd"
 
$s = "Z ";
++$s; // Deprecated: Increment on non-alphanumeric string is deprecated
var_dump($s); // string(2) "Z "
 
$s = " Z";
++$s; // Deprecated: Increment on non-alphanumeric string is deprecated
var_dump($s); // string(2) " A"
 
# Non-ASCII characters
$s = "é";
++$s; // Deprecated: Increment on non-alphanumeric string is deprecated
var_dump($s); # string(2) "é"
$s = "あいうえお";
++$s; // Deprecated: Increment on non-alphanumeric string is deprecated
var_dump($s); # string(15) "あいうえお"
$s = "α";
++$s; // Deprecated: Increment on non-alphanumeric string is deprecated
var_dump($s); # string(2) "α"
$s = "1f.5";
++$s; // Deprecated: Increment on non-alphanumeric string is deprecated
var_dump($s); # string(4) "1f.6"

$s = "1.f.5";
++$s; // Deprecated: Increment on non-alphanumeric string is deprecated
var_dump($s); # string(5) "1.f.6"


// Deprecations in 8.5 (PR already merged, test with git.master version)


$s = "foo";
++$s; // Deprecated: Increment on non-numeric string is deprecated
var_dump($s); // string(3) "fop"

Output for git.master_jit, git.master: Warning: Decrement on type null has no effect, this will change in the next major version of PHP in /in/jYajv on line 8 NULL Warning: Decrement on type bool has no effect, this will change in the next major version of PHP in /in/jYajv on line 12 bool(false) Warning: Increment on type bool has no effect, this will change in the next major version of PHP in /in/jYajv on line 14 bool(false) Warning: Decrement on type bool has no effect, this will change in the next major version of PHP in /in/jYajv on line 18 bool(true) Warning: Increment on type bool has no effect, this will change in the next major version of PHP in /in/jYajv on line 20 bool(true) Deprecated: Decrement on empty string is deprecated as non-numeric in /in/jYajv on line 28 int(-1) Deprecated: Decrement on non-numeric string has no effect and is deprecated in /in/jYajv on line 32 string(3) "foo" Deprecated: Increment on non-numeric string is deprecated, use str_increment() instead in /in/jYajv on line 36 string(3) "-cd" Deprecated: Increment on non-numeric string is deprecated, use str_increment() instead in /in/jYajv on line 40 string(2) "Z " Deprecated: Increment on non-numeric string is deprecated, use str_increment() instead in /in/jYajv on line 44 string(2) " A" Deprecated: Increment on non-numeric string is deprecated, use str_increment() instead in /in/jYajv on line 49 string(2) "é" Deprecated: Increment on non-numeric string is deprecated, use str_increment() instead in /in/jYajv on line 52 string(15) "あいうえお" Deprecated: Increment on non-numeric string is deprecated, use str_increment() instead in /in/jYajv on line 55 string(2) "α" Deprecated: Increment on non-numeric string is deprecated, use str_increment() instead in /in/jYajv on line 58 string(4) "1f.6" Deprecated: Increment on non-numeric string is deprecated, use str_increment() instead in /in/jYajv on line 62 string(5) "1.f.6" Deprecated: Increment on non-numeric string is deprecated, use str_increment() instead in /in/jYajv on line 70 string(3) "fop"

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2022-12-01 RFC: Property hooks - included in PHP 8.4
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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