Online PHP editor | perf for X428B

@ 2026-01-10T20:11:18Z

<?php


echo "Test 1: Factorial of 2^50 + 1\n";
try {
    $value = 2**50 + 1;
    echo "Calculating factorial of: $value\n";
    $result = gmp_fact($value);
    echo "Result: " . gmp_strval($result) . "\n";
} catch (\ValueError $e) {
    echo "ValueError: " . $e->getMessage() . "\n";
} catch (\Error $e) {
    echo "Error: " . $e->getMessage() . "\n";
}

echo "\nTest 2: Another large value\n";
try {
    $value = 1000000000000;  // 1 trillion
    echo "Calculating factorial of: $value\n";
    $result = gmp_fact($value);
    echo "Result: " . gmp_strval($result) . "\n";
} catch (\ValueError $e) {
    echo "ValueError: " . $e->getMessage() . "\n";
} catch (\Error $e) {
    echo "Error: " . $e->getMessage() . "\n";
}

echo "\nTest 3: Moderately large value that should work\n";
try {
    $value = 100;
    echo "Calculating factorial of: $value\n";
    $result = gmp_fact($value);
    echo "Result length: " . strlen(gmp_strval($result)) . " digits\n";
} catch (\ValueError $e) {
    echo "ValueError: " . $e->getMessage() . "\n";
} catch (\Error $e) {
    echo "Error: " . $e->getMessage() . "\n";
}

echo "\nDone\n";

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	0.031	0.009	16.75
8.5.0	0.024	0.007	16.52
8.4.16	0.033	0.006	20.51
8.4.15	0.035	0.008	19.68
8.4.14	0.031	0.010	17.79
8.4.13	0.035	0.007	17.90
8.4.12	0.035	0.009	17.92
8.4.11	0.039	0.007	17.83
8.4.10	0.037	0.007	18.09
8.4.9	0.042	0.010	18.06
8.4.8	0.034	0.010	17.90
8.4.7	0.039	0.006	17.96
8.4.6	0.038	0.006	17.83
8.4.5	0.038	0.006	17.89
8.4.4	0.041	0.007	17.60
8.4.3	0.036	0.010	17.67
8.4.2	0.039	0.008	17.79
8.4.1	0.040	0.008	17.75
8.3.29	0.035	0.006	18.49
8.3.28	0.032	0.007	18.36
8.3.27	0.036	0.006	16.62
8.3.26	0.035	0.009	16.76
8.3.25	0.036	0.008	16.76
8.3.24	0.035	0.008	16.73
8.3.23	0.037	0.005	16.77
8.3.22	0.035	0.008	16.68
8.3.21	0.037	0.007	16.67
8.3.20	0.034	0.010	16.58
8.3.19	0.037	0.008	16.78
8.3.18	0.040	0.006	16.77
8.3.17	0.039	0.008	16.75
8.3.16	0.038	0.006	16.76
8.3.15	0.041	0.008	16.60
8.3.14	0.039	0.007	16.60
8.3.13	0.033	0.009	16.81
8.3.12	0.034	0.008	16.79
8.3.11	0.038	0.006	16.80
8.3.10	0.037	0.009	16.71
8.3.9	0.036	0.009	16.63
8.3.8	0.038	0.007	16.70
8.3.7	0.039	0.006	16.66
8.3.6	0.038	0.007	16.77
8.3.5	0.038	0.008	16.67
8.3.4	0.035	0.010	17.91
8.3.3	0.034	0.005	17.98
8.3.2	0.030	0.006	17.97
8.3.1	0.028	0.007	18.22
8.3.0	0.029	0.008	18.09

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