Online PHP editor | perf for CGe6e

@ 2024-11-08T09:20:47Z

<?php

// Disable garbage collection to avoid interference
gc_disable();

// Helper function to calculate execution time
function benchmark(callable $function) {
    $start = microtime(true);
    $function();
    $end = microtime(true);
    return $end - $start;
}

// Create a deeply nested array
function createNestedArray($depth = 3, $width = 10) {
    $data = [];
    for ($i = 0; $i < $width; $i++) {
        $data["level_$i"] = ($depth > 1) ? createNestedArray($depth - 1, $width) : rand(1, 100);
    }
    return $data;
}

// Create a deeply nested object
function createNestedObject($depth = 3, $width = 10) {
    $obj = new stdClass();
    for ($i = 0; $i < $width; $i++) {
        $propName = "level_$i";
        $obj->$propName = ($depth > 1) ? createNestedObject($depth - 1, $width) : rand(1, 100);
    }
    return $obj;
}

// Function to modify data in nested array
function modifyArray(&$data, $depth = 3) {
    foreach ($data as &$value) {
        if ($depth > 1 && is_array($value)) {
            modifyArray($value, $depth - 1);
        } else {
            $value *= 2; // Data alteration
        }
    }
}

// Function to modify data in nested object
function modifyObject(&$obj, $depth = 3) {
    foreach ($obj as &$value) {
        if ($depth > 1 && is_object($value)) {
            modifyObject($value, $depth - 1);
        } else {
            $value *= 2; // Data alteration
        }
    }
}

// Initialize nested structures
$depth = 3;
$width = 10;
$nestedArray = createNestedArray($depth, $width);
$nestedObject = createNestedObject($depth, $width);

// Benchmark for array
$arrayTime = benchmark(function() use (&$nestedArray, $depth) {
    modifyArray($nestedArray, $depth);
});

// Benchmark for object
$objectTime = benchmark(function() use (&$nestedObject, $depth) {
    modifyObject($nestedObject, $depth);
});

echo "Array Time: " . $arrayTime . " seconds\n";
echo "Object Time: " . $objectTime . " seconds\n";

gc_enable(); // Re-enable garbage collection
?>

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)
8.3.13	0.040	0.003	17.03
8.3.12	0.026	0.015	16.99
8.3.11	0.039	0.003	16.79
8.3.10	0.038	0.010	16.92
8.3.9	0.032	0.010	17.03
8.3.8	0.032	0.003	16.74
8.3.7	0.033	0.007	16.86
8.3.6	0.039	0.013	16.80
8.3.5	0.036	0.007	17.00
8.3.4	0.024	0.015	17.64
8.3.3	0.023	0.008	17.87
8.3.2	0.030	0.013	17.83
8.3.1	0.037	0.000	17.62
8.3.0	0.019	0.006	17.88
8.2.25	0.027	0.008	16.61
8.2.24	0.024	0.016	16.70
8.2.23	0.037	0.007	16.56
8.2.22	0.022	0.003	16.61
8.2.21	0.016	0.008	16.21
8.2.20	0.013	0.007	16.72
8.2.19	0.019	0.000	16.90
8.2.18	0.011	0.007	16.73
8.2.17	0.023	0.003	17.98
8.2.16	0.031	0.009	17.71
8.2.15	0.034	0.011	17.71
8.2.14	0.032	0.003	17.95
8.2.13	0.035	0.008	17.97
8.2.12	0.039	0.003	17.77
8.2.11	0.028	0.014	17.72
8.2.10	0.025	0.011	17.91
8.2.9	0.022	0.022	17.84
8.2.8	0.040	0.000	17.88
8.2.7	0.032	0.011	17.65
8.2.6	0.026	0.015	17.77
8.2.5	0.029	0.011	17.63
8.2.4	0.030	0.006	17.64
8.2.3	0.023	0.009	17.91
8.2.2	0.023	0.013	17.62
8.2.1	0.028	0.011	17.66
8.2.0	0.033	0.007	17.63
8.1.30	0.033	0.010	16.35
8.1.29	0.030	0.010	16.39
8.1.28	0.030	0.009	16.27
8.1.27	0.030	0.003	17.63
8.1.26	0.018	0.010	17.86
8.1.25	0.029	0.014	17.48
8.1.24	0.021	0.009	17.64
8.1.23	0.016	0.008	17.64
8.1.22	0.013	0.003	17.64
8.1.21	0.025	0.015	17.35
8.1.20	0.022	0.009	17.47
8.1.19	0.034	0.006	17.38
8.1.18	0.044	0.011	17.32
8.1.17	0.026	0.011	17.50
8.1.16	0.033	0.004	17.45
8.1.15	0.023	0.015	17.45
8.1.14	0.029	0.008	17.36
8.1.13	0.020	0.017	17.53
8.1.12	0.023	0.007	17.58
8.1.11	0.016	0.000	17.64
8.1.10	0.012	0.005	17.46
8.1.9	0.023	0.013	17.35
8.1.8	0.026	0.007	17.63
8.1.7	0.026	0.009	17.36
8.1.6	0.031	0.009	17.51
8.1.5	0.028	0.011	17.17
8.1.4	0.034	0.007	17.59
8.1.3	0.029	0.011	17.80
8.1.2	0.029	0.011	17.93
8.1.1	0.036	0.004	17.61
8.1.0	0.023	0.015	17.47

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