Online PHP editor | perf 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"

Here you find the average performance (time & memory) of each version. A grayed out version indicates it didn't complete successfully (based on exit-code).

Version	System time (s)	User time (s)	Memory (MiB)
8.5.7	0.010	0.007	16.90
8.5.6	0.011	0.008	16.62
8.5.5	0.007	0.008	18.47
8.5.3	0.007	0.010	18.00
8.5.2	0.011	0.007	20.14
8.5.1	0.010	0.009	16.62
8.5.0	0.012	0.009	22.99
8.4.21	0.014	0.008	21.50
8.4.18	0.013	0.010	19.82
8.4.17	0.014	0.009	24.03
8.4.16	0.010	0.013	22.20
8.4.15	0.007	0.006	16.87
8.4.14	0.035	0.010	17.37
8.4.13	0.036	0.009	17.55
8.4.12	0.038	0.009	17.95
8.4.11	0.040	0.008	17.79
8.4.10	0.041	0.009	17.60
8.4.9	0.044	0.010	17.63
8.4.8	0.041	0.007	17.40
8.4.7	0.034	0.013	17.91
8.4.6	0.044	0.008	17.91
8.4.5	0.040	0.010	17.50
8.4.4	0.039	0.009	17.72
8.4.3	0.040	0.009	17.43
8.4.2	0.041	0.008	17.49
8.4.1	0.039	0.011	17.69
8.3.30	0.011	0.009	20.80
8.3.29	0.014	0.007	20.82
8.3.28	0.005	0.006	16.28
8.3.27	0.033	0.011	16.72
8.3.26	0.038	0.008	16.48
8.3.25	0.035	0.010	16.69
8.3.24	0.037	0.007	16.48
8.3.23	0.039	0.006	16.44
8.3.22	0.046	0.008	16.48
8.3.21	0.040	0.010	16.53
8.3.20	0.036	0.009	16.81
8.3.19	0.035	0.011	16.48
8.3.18	0.037	0.009	16.67
8.3.17	0.038	0.010	16.74
8.3.16	0.041	0.008	16.85
8.3.15	0.041	0.005	16.47
8.3.14	0.043	0.006	16.19
8.3.13	0.039	0.006	16.53
8.3.12	0.044	0.009	16.53
8.3.11	0.038	0.008	16.44
8.3.10	0.046	0.007	16.65
8.3.9	0.040	0.008	16.50
8.3.8	0.036	0.013	16.70
8.3.7	0.040	0.008	16.70
8.3.6	0.036	0.012	16.54
8.3.5	0.036	0.011	16.70
8.3.4	0.040	0.009	17.48
8.3.3	0.030	0.008	17.46
8.3.2	0.027	0.015	17.63
8.3.1	0.036	0.005	17.49
8.3.0	0.027	0.010	17.54
8.2.30	0.010	0.010	20.04
8.2.29	0.026	0.011	16.59
8.2.28	0.028	0.011	16.51
8.2.27	0.033	0.007	16.58
8.2.26	0.030	0.011	16.49
8.2.25	0.031	0.008	16.34
8.2.24	0.031	0.010	16.19
8.2.23	0.037	0.007	16.25
8.2.22	0.032	0.008	16.19
8.2.21	0.036	0.005	16.19
8.2.20	0.036	0.012	16.48
8.2.19	0.033	0.008	16.59
8.2.18	0.033	0.007	16.39
8.2.17	0.034	0.009	17.63
8.2.16	0.033	0.011	17.57
8.2.15	0.036	0.008	17.41
8.2.14	0.034	0.010	17.50
8.2.13	0.035	0.009	17.36
8.2.12	0.041	0.011	17.55
8.2.11	0.037	0.006	17.24
8.2.10	0.035	0.008	17.55
8.2.9	0.031	0.011	17.57
8.2.8	0.033	0.009	17.35
8.2.7	0.034	0.009	17.36
8.2.6	0.034	0.015	17.41
8.2.5	0.031	0.011	17.37
8.2.4	0.043	0.010	17.29
8.2.3	0.029	0.009	17.45
8.2.2	0.029	0.009	17.32
8.2.1	0.028	0.010	17.35
8.2.0	0.028	0.011	17.45
8.1.34	0.010	0.009	21.63

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