Online PHP editor | perf for FY4re

@ 2021-12-15T16:40:47Z

<?php
interface I {}
class A implements I{}

$results = [];

[$key, $value] = compute('instanceof [object]', function($instance) {
    $instance instanceof I;
});
$results[$key] = $value;
[$key, $value] = compute('is_subclass_of [object]', function($instance) {
    is_subclass_of($instance, I::class);
});
$results[$key] = $value;
[$key, $value] = compute('is_subclass_of [class]', function($instance) {
    is_subclass_of(A::class, I::class);
});
$results[$key] = $value;
[$key, $value] = compute('class_implements [object]', function($instance) {
    in_array(I::class, class_implements(A::class));
});
$results[$key] = $value;

[$key, $value] = compute('is_a [object]', function($instance) {
     is_a($instance, I::class);
});
$results[$key] = $value;

[$key, $value] = compute('is_a [class]', function($instance) {
    is_a(A::class, I::class, true);
});
$results[$key] = $value;

[$key, $value] = compute('reflection [class]', function($instance) {
   ( new ReflectionClass(A::class))->implementsInterface(I::class);
});
$results[$key] = $value;

function compute($name, $callback) {
    $instance = new A;
    
    $start = microtime(true);
    for($i = 1e5; $i; $i--) {
        $callback($instance);
    }
    
    $elapsedMs = (microtime(true) - $start)*1000;
    
    return [$name, $elapsedMs];
}

asort($results);
$best = min($results);
$results = array_map(function($result) use($best) {
   return [
        $result,
        $result / $best,
   ];
}, $results);

$performance = 0;
foreach($results as $name => $result) {
    [$elapsedMs, $performance] = $result;
    $extraTimeInPercent = ($performance - 1) * 100;
    echo sprintf(
        '%25s took %6.2f ms | +%3.0f%% | %s',
        $name,
        $elapsedMs,
        $extraTimeInPercent,
        str_pad('', ($performance * 10), '.')
    ) . PHP_EOL;
}

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)
8.3.0	0.012	0.073	28.09
8.2.13	0.010	0.075	28.09
8.1.26	0.012	0.078	28.09
8.1.0	0.003	0.118	17.52
8.0.30	0.021	0.079	28.09
8.0.13	0.022	0.111	16.87
8.0.12	0.022	0.102	16.82
8.0.11	0.017	0.110	16.98
8.0.10	0.016	0.106	16.80
8.0.9	0.020	0.102	16.96
8.0.8	0.017	0.099	16.92
8.0.7	0.020	0.106	16.83
8.0.6	0.017	0.098	16.85
8.0.5	0.013	0.104	16.84
8.0.3	0.014	0.110	16.74
8.0.2	0.014	0.111	17.05
8.0.1	0.013	0.105	17.11
8.0.0	0.007	0.111	17.09
7.4.27	0.000	0.113	16.55
7.4.26	0.022	0.108	16.66
7.4.25	0.010	0.118	16.57
7.4.24	0.013	0.101	16.50
7.4.23	0.013	0.105	16.70
7.4.22	0.006	0.106	16.49
7.4.21	0.010	0.111	16.61
7.4.20	0.009	0.097	16.68
7.4.19	0.012	0.100	16.56
7.4.18	0.013	0.101	16.75
7.4.16	0.010	0.110	16.56
7.4.15	0.015	0.099	16.59
7.4.14	0.016	0.096	16.59
7.4.13	0.011	0.098	16.52
7.4.12	0.016	0.100	16.51
7.4.11	0.016	0.095	16.52
7.4.10	0.010	0.103	16.55
7.4.9	0.014	0.098	16.56
7.4.8	0.019	0.093	16.43
7.4.7	0.019	0.094	16.51
7.4.6	0.020	0.089	16.52
7.4.5	0.020	0.095	16.43
7.4.4	0.010	0.105	16.50
7.4.3	0.011	0.103	16.57
7.4.2	0.014	0.096	16.48
7.4.1	0.013	0.098	16.58
7.4.0	0.016	0.092	16.56
7.3.33	0.014	0.101	16.32
7.3.32	0.013	0.102	16.42
7.3.31	0.016	0.107	16.43
7.3.30	0.015	0.110	16.37
7.3.29	0.016	0.120	16.32
7.3.28	0.028	0.118	16.52
7.3.27	0.025	0.119	16.46
7.3.26	0.023	0.122	16.42
7.3.25	0.007	0.127	16.40
7.3.24	0.006	0.131	16.37
7.3.23	0.013	0.131	16.26
7.3.22	0.023	0.127	16.46
7.3.21	0.032	0.109	16.38
7.3.20	0.022	0.125	16.33
7.3.19	0.020	0.115	16.33
7.3.18	0.006	0.124	16.20
7.3.17	0.020	0.112	16.20
7.3.16	0.010	0.121	16.35
7.3.15	0.003	0.108	16.20
7.3.14	0.003	0.106	16.25
7.3.13	0.003	0.114	16.16

preferences:dark modelive preview