Online PHP editor | perf for n2q2Z

@ 2025-11-13T02:31:28Z

<?php

$a = 1;
$b = 2;
$x = [1, 2];
file_put_contents('/tmp/a.php', '');

class Foo {
    public $a = 1;
    public static $b = 3;
    function bar() {}
    static function baz() {}
}

static $array = [1, 2, 3];
static $arrayDimFetch = [1,2][0];
static $arrayItem = ['a' => 1];
static $binaryBitwiseAnd = 1 & 2;
static $binaryConcat = "a" . "b";
static $binaryIdentical = 1 === 1;
static $binaryPlus = 1 + 2;
static $binarySpaceship = 1 <=> 2;
static $bitwiseNot = ~1;
static $booleanAnd = 1 && 2;
static $booleanNot = !false;
static $classConstFetch = Foo::class;
static $coalesce = 1 ?? 2;
static $constFetch = PHP_EOL;
static $new = new stdClass();
static $scalarFloat = 3.14;
static $scalarInteger = 123;
static $scalarMagicConst = __LINE__;
static $scalarString = 'string';
static $ternary = true ? 1 : 2;
static $unaryPlus = +1;

// Was invalid inside a function but valid outside
static $propertyFetch = (new Foo())->a; // works when not in a function
static $nullsafePropertyFetch = (new Foo())?->a; // works when not in a function

// Fatal errors in PHP 8.2 for each statement below
static $arrowFunction = fn() => 1;
static $assign = ($a = 1);
static $assignOpAnd = ($a &= 1);
static $assignOpConcat = ($a .= "b");
static $assignOpDiv = ($b /= 2);
static $assignRef = ($a =& $b);
static $castInt = (int)"1";
static $clone = clone (new stdClass());
static $closure = function () { return 1; };
static $closureUse = function () use ($x) {};
static $empty = empty(1);
static $encapsed = "Value: $a";
static $errorSuppress = @new stdClass();
static $eval = eval('1+1;');
static $funcCall = strlen('x');
static $include = include '/tmp/a.php';
static $instanceof = new stdClass() instanceof Foo;
static $isset = isset($x);
static $list = [[$a, $b] = [1, 2]];
static $match = match (1) {1 => 'a', default => 'b'};
static $methodCall = (new Foo())->bar();
static $nullsafeMethodCall = (new Foo())?->bar();
static $postInc = $a++;
static $print = print '';
static $shellExec = `whoami`; // expected warning due to sandbox environment
static $staticCall = Foo::baz();
static $staticPropertyFetch = Foo::$b;
static $variable = $a;

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)
8.5.1	0.008	0.012	16.95
8.5.0	0.009	0.014	22.98
8.4.16	0.016	0.005	23.32
8.4.15	0.009	0.007	17.05
8.4.14	0.034	0.009	17.84
8.4.13	0.034	0.011	17.88
8.4.12	0.044	0.005	17.81
8.4.11	0.034	0.010	17.99
8.4.10	0.039	0.010	17.79
8.4.9	0.038	0.010	17.75
8.4.8	0.038	0.008	17.64
8.4.7	0.036	0.012	17.86
8.4.6	0.042	0.010	17.89
8.4.5	0.037	0.010	17.93
8.4.4	0.037	0.011	17.76
8.4.3	0.039	0.010	17.53
8.4.2	0.041	0.009	17.69
8.4.1	0.039	0.009	17.60
8.3.29	0.012	0.009	20.92
8.3.28	0.012	0.009	18.75
8.3.27	0.035	0.008	16.79
8.3.26	0.037	0.007	16.92
8.3.25	0.034	0.010	16.69
8.3.24	0.035	0.010	16.75
8.3.23	0.036	0.008	16.81
8.3.22	0.034	0.009	16.88
8.3.21	0.035	0.011	16.69
8.3.20	0.036	0.008	16.90
8.3.19	0.035	0.009	16.80
8.3.18	0.036	0.008	16.72
8.3.17	0.040	0.009	16.44
8.3.16	0.038	0.009	16.75
8.3.15	0.040	0.007	16.89
8.3.14	0.041	0.009	16.60
8.3.13	0.033	0.010	16.64
8.3.12	0.036	0.007	16.49
8.3.11	0.031	0.010	16.79
8.3.10	0.038	0.013	16.70
8.3.9	0.039	0.008	16.53
8.3.8	0.040	0.009	16.71
8.3.7	0.040	0.008	16.89
8.3.6	0.036	0.010	16.69
8.3.5	0.039	0.008	16.70
8.3.4	0.038	0.011	17.64
8.3.3	0.027	0.011	17.42
8.3.2	0.031	0.007	17.49
8.3.1	0.032	0.007	17.46
8.3.0	0.029	0.010	17.71
8.2.30	0.011	0.010	20.31
8.2.29	0.032	0.004	16.38
8.2.28	0.029	0.008	16.52
8.2.27	0.035	0.007	16.31
8.2.26	0.031	0.009	16.58
8.2.25	0.034	0.007	16.42
8.2.24	0.030	0.011	16.43
8.2.23	0.029	0.011	16.39
8.2.22	0.029	0.009	16.34
8.2.21	0.031	0.007	16.36
8.2.20	0.030	0.009	16.52
8.2.19	0.033	0.009	16.47
8.2.18	0.032	0.007	16.60
8.2.17	0.032	0.007	17.42
8.2.16	0.031	0.007	17.27
8.2.15	0.032	0.007	17.23
8.2.14	0.032	0.008	17.38
8.2.13	0.032	0.007	17.30
8.2.12	0.032	0.009	17.31
8.2.11	0.032	0.008	17.36
8.2.10	0.030	0.009	17.26
8.2.9	0.030	0.009	17.26
8.2.8	0.029	0.010	17.16
8.2.7	0.033	0.007	17.17
8.2.6	0.033	0.007	17.37
8.2.5	0.029	0.010	17.28
8.2.4	0.032	0.006	17.12
8.2.3	0.027	0.011	17.22
8.2.2	0.033	0.005	17.19
8.2.1	0.029	0.009	16.97
8.2.0	0.037	0.008	17.23
8.1.34	0.011	0.008	17.52

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