Online PHP editor | perf for bfHHs

@ 2013-07-02T12:25:48Z

<?php

class ExtendedSPLHeap extends \SPLHeap {

    protected function compare2($a, $b) {
        if ($a->latitude == $b->latitude) {
            return 0;
        }
        return ($a->latitude < $b->latitude) ? -1 : 1;
    }

}


$citiesHeap = new \ExtendedSPLHeap();


$city = new \StdClass;
$city->name = "Birmingham";
$city->latitude = 52.4800;
$city->longitude = -1.9100;

$citiesHeap->insert($city);

$city = new \StdClass;
$city->name = "Bristol";
$city->latitude = 51.4600;
$city->longitude = -2.6000;

$citiesHeap->insert($city);

echo 'There are ', $citiesHeap->count(), ' cities in the heap', PHP_EOL;

echo 'FROM NORTH TO SOUTH', PHP_EOL;
$citiesHeap->top();
while ($citiesHeap->valid()) {
    $city = $citiesHeap->current();

    echo sprintf(
        "%-20s %+3.4f  %+3.4f" . PHP_EOL,
        $city->name,
        $city->latitude,
        $city->longitude
    );

    $citiesHeap->next();
}

echo 'There are ', $citiesHeap->count(), ' cities in the heap', 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)
5.4.16	0.011	0.043	12.38
5.4.15	0.014	0.043	12.38
5.4.14	0.012	0.042	12.07
5.4.13	0.010	0.046	12.05
5.4.12	0.012	0.044	12.01
5.4.11	0.017	0.055	12.01
5.4.10	0.014	0.040	12.01
5.4.9	0.017	0.050	12.00
5.4.8	0.014	0.046	12.01
5.4.7	0.018	0.060	12.00
5.4.6	0.012	0.044	12.00
5.4.5	0.016	0.046	12.00
5.4.4	0.013	0.048	12.00
5.4.3	0.016	0.051	11.99
5.4.2	0.016	0.060	11.99
5.4.1	0.017	0.055	11.99
5.4.0	0.011	0.045	11.48
5.3.26	0.013	0.045	12.72
5.3.25	0.013	0.043	12.72
5.3.24	0.014	0.045	12.72
5.3.23	0.019	0.059	12.71
5.3.22	0.017	0.052	12.68
5.3.21	0.015	0.046	12.68
5.3.20	0.013	0.045	12.68
5.3.19	0.012	0.048	12.68
5.3.18	0.013	0.049	12.67
5.3.17	0.012	0.044	12.67
5.3.16	0.018	0.054	12.67
5.3.15	0.014	0.045	12.67
5.3.14	0.022	0.061	12.66
5.3.13	0.013	0.048	12.66
5.3.12	0.019	0.047	12.66
5.3.11	0.015	0.050	12.66
5.3.10	0.020	0.073	12.12
5.3.9	0.014	0.047	12.10
5.3.8	0.015	0.051	12.08
5.3.7	0.018	0.062	12.08
5.3.6	0.015	0.044	12.07
5.3.5	0.017	0.049	12.02
5.3.4	0.014	0.041	12.02
5.3.3	0.018	0.049	11.98
5.3.2	0.018	0.061	11.76
5.3.1	0.012	0.041	11.73
5.3.0	0.013	0.042	11.71

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