Online PHP editor | perf for geCrH

@ 2025-12-09T23:21:42Z

<?php

function bc() {
    $argv = func_get_args();
    $string = str_replace(' ', '', "({$argv[0]})");

    $operations = array();
    if (strpos($string, '^') !== false) $operations[] = '\^';
    if (strpbrk($string, '*/%') !== false) $operations[] = '[\*\/\%]';
    if (strpbrk($string, '+-') !== false) $operations[] = '[\+\-]';
    if (strpbrk($string, '<>!=') !== false) $operations[] = '<|>|=|<=|==|>=|!=|<>';

    $string = preg_replace('/\$([0-9\.]+)/e', '$argv[$1]', $string);
    while (preg_match('/\(([^\)\(]*)\)/', $string, $match)) {
        foreach ($operations as $operation) {
            if (preg_match("/([+-]{0,1}[0-9\.]+)($operation)([+-]{0,1}[0-9\.]+)/", $match[1], $m)) {
                switch($m[2]) {
                    case '+':  $result = bcadd($m[1], $m[3]); break;
                    case '-':  $result = bcsub($m[1], $m[3]); break;
                    case '*':  $result = bcmul($m[1], $m[3]); break;
                    case '/':  $result = bcdiv($m[1], $m[3]); break;
                    case '%':  $result = bcmod($m[1], $m[3]); break;
                    case '^':  $result = bcpow($m[1], $m[3]); break;
                    case '==':
                    case '=':  $result = bccomp($m[1], $m[3]) == 0; break;
                    case '>':  $result = bccomp($m[1], $m[3]) == 1; break;
                    case '<':  $result = bccomp($m[1], $m[3]) == -1; break;
                    case '>=': $result = bccomp($m[1], $m[3]) >= 0; break;
                    case '<=': $result = bccomp($m[1], $m[3]) <= 0; break;
                    case '<>':
                    case '!=': $result = bccomp($m[1], $m[3]) != 0; break;
                }
                $match[1] = str_replace($m[0], $result, $match[1]);
            }
        }
        $string = str_replace($match[0], $match[1], $string);
    }

    return $string;
}


// Exemplo de uso: Operações matemáticas
$resultado = bc("(2 + 3) * 4");
echo $resultado;  // Saída: 20

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)
8.5.3	0.009	0.009	19.77
8.5.2	0.012	0.006	18.34
8.5.1	0.014	0.006	17.07
8.5.0	0.013	0.007	17.37
8.4.18	0.014	0.008	20.15
8.4.17	0.011	0.010	24.01
8.4.16	0.013	0.010	23.50
8.4.15	0.031	0.009	20.11
8.4.14	0.034	0.009	18.14
8.4.13	0.025	0.008	17.91
8.4.12	0.038	0.006	18.24
8.4.11	0.036	0.009	18.18
8.4.10	0.020	0.005	18.31
8.4.9	0.035	0.010	18.20
8.4.8	0.036	0.010	18.20
8.4.7	0.036	0.009	18.11
8.4.6	0.025	0.005	18.22
8.4.5	0.035	0.006	18.32
8.4.4	0.044	0.008	18.11
8.4.3	0.026	0.002	17.89
8.4.2	0.018	0.004	18.17
8.4.1	0.022	0.005	17.75
8.3.30	0.010	0.010	20.93
8.3.29	0.011	0.009	22.50
8.3.28	0.016	0.008	18.65
8.3.27	0.028	0.008	17.37
8.3.26	0.034	0.006	17.37
8.3.25	0.032	0.009	17.37
8.3.24	0.029	0.005	17.37
8.3.23	0.035	0.008	17.37
8.3.22	0.031	0.005	17.37
8.3.21	0.027	0.012	17.37
8.3.20	0.020	0.006	17.37
8.3.19	0.017	0.003	17.37
8.3.18	0.014	0.005	17.37
8.3.17	0.027	0.006	17.37
8.3.16	0.036	0.008	17.37
8.3.15	0.035	0.009	17.37
8.3.14	0.033	0.004	17.37
8.3.13	0.024	0.005	17.37
8.3.12	0.030	0.008	17.37
8.3.11	0.038	0.009	17.37
8.3.10	0.035	0.007	17.37
8.3.9	0.036	0.004	17.37
8.3.8	0.032	0.005	17.37
8.3.7	0.029	0.007	17.37
8.3.6	0.034	0.009	17.37
8.3.5	0.045	0.007	17.37
8.3.4	0.032	0.008	18.29
8.3.3	0.030	0.007	18.20
8.3.2	0.028	0.011	18.27
8.3.1	0.026	0.010	18.29
8.3.0	0.022	0.008	18.13
8.2.30	0.007	0.013	18.32
8.2.29	0.028	0.010	17.37
8.2.28	0.030	0.007	17.37
8.2.27	0.020	0.006	17.37
8.1.34	0.008	0.013	17.99

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