Online PHP editor | perf for LCSFb

@ 2014-05-26T10:44:46Z

<?php

$hotels = [
	['sistina', 4, 8.2, 31055],
	['Agustino', 4, 8.3, 31555],
	['Evrostars', 4, 8.1, 32178],
    ['Larovere', 4, 8.2, 33137],
	['Rex', 4, 8.0, 33789],
	['Ludovici', 4, 8.1, 33929],
    ['Guilio', 4, 8.4, 34208]
	['NH', 4, 8.6, 34403],
    ['Napoleon', 4, 8.3, 34906],
    ['Bittiya', 4, 8.1, 35446],
    ['La redidenza', 4, 8.9, 37446],
];

$totalHotelsNumber = 2;

$starCoef = 0.2;
$ratingCoef = 2000;

for ( $i=0; $i<count($hotels); $i++ ) {
	$hotels[$i][4] = 0;
}

for ( $i=0; $i<count($hotels); $i++ ) {
	for ( $j=$i+1; $j<count($hotels); $j++ ) {
		echo 'Comparing '.$hotels[$i][0].' and '.$hotels[$j][0].'...'."\r\n";

		$starDifference = $hotels[$i][1]-$hotels[$j][1];
		$ratingToCompensate = $starDifference*$starCoef;
		$rating = $hotels[$i][2]+$ratingToCompensate;

		$ratingDifference = ($rating-$hotels[$j][2])*10;
		$priceToCompensate = $ratingDifference*$ratingCoef;
		$price = round($hotels[$i][3]-$priceToCompensate);
		
		echo $price.' VS '.$hotels[$j][3]."\r\n";
		if ( $price < $hotels[$j][3] ) {
			echo $hotels[$i][0].' wins!'."\r\n";
			$hotels[$i][4]++;
		} else {
			echo $hotels[$j][0].' wins!'."\r\n";
			$hotels[$j][4]++;
		}
		
		echo "\r\n".'----------'."\r\n";
	}
}

usort($hotels, function($hotelA, $hotelB){
	return $hotelB[4]-$hotelA[4];
});

echo "\r\n".'----------'."\r\n";

echo 'Top:'."\r\n\r\n";
for ( $i=0; $i<count($hotels); $i++ ) {
	echo $hotels[$i][0].': '.$hotels[$i][4]."\r\n";
}

echo "\r\n".'----------'."\r\n";
echo 'Finalists:'."\r\n\r\n";

for ( $i=0; $i<=1; $i++ ) {
	echo $hotels[$i][0]."\r\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)
5.4.28	0.009	0.044	12.36
5.4.27	0.009	0.037	12.36
5.4.26	0.009	0.038	12.36
5.4.25	0.007	0.039	12.36
5.4.24	0.007	0.035	12.36
5.4.23	0.007	0.044	12.36
5.4.22	0.005	0.056	12.35
5.4.21	0.012	0.048	12.35
5.4.20	0.013	0.036	12.35
5.4.19	0.007	0.054	12.35
5.4.18	0.006	0.044	12.35
5.4.17	0.007	0.046	12.36
5.4.16	0.009	0.034	12.36
5.4.15	0.009	0.035	12.35
5.4.14	0.008	0.047	12.04
5.4.13	0.007	0.047	12.02
5.4.12	0.009	0.040	11.98
5.4.11	0.005	0.039	11.98
5.4.10	0.009	0.039	11.98
5.4.9	0.010	0.045	11.98
5.4.8	0.006	0.038	11.98
5.4.7	0.004	0.038	11.98
5.4.6	0.005	0.040	11.98
5.4.5	0.011	0.040	11.98
5.4.4	0.009	0.035	11.97
5.4.3	0.009	0.047	11.96
5.4.2	0.008	0.037	11.96
5.4.1	0.009	0.045	11.96
5.4.0	0.009	0.053	11.45
5.3.28	0.011	0.050	12.71
5.3.27	0.011	0.050	12.72
5.3.26	0.008	0.061	12.72
5.3.25	0.007	0.045	12.72
5.3.24	0.007	0.043	12.72
5.3.23	0.010	0.050	12.71
5.3.22	0.006	0.057	12.68
5.3.21	0.016	0.069	12.68
5.3.20	0.022	0.055	12.68
5.3.19	0.010	0.050	12.68
5.3.18	0.018	0.064	12.68
5.3.17	0.007	0.044	12.67
5.3.16	0.012	0.035	12.67
5.3.15	0.027	0.041	12.67
5.3.14	0.008	0.042	12.66
5.3.13	0.010	0.041	12.66
5.3.12	0.008	0.044	12.66
5.3.11	0.011	0.037	12.66
5.3.10	0.003	0.042	12.12
5.3.9	0.008	0.039	12.08
5.3.8	0.008	0.037	12.07
5.3.7	0.008	0.056	12.07
5.3.6	0.007	0.053	12.07
5.3.5	0.008	0.051	12.00
5.3.4	0.012	0.049	12.00
5.3.3	0.008	0.045	11.94
5.3.2	0.014	0.045	11.70
5.3.1	0.009	0.033	11.67
5.3.0	0.025	0.079	11.66

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