Online PHP editor | perf for ONfnr

<?php function noSort($a, $b) { $result = []; foreach ($a as $v) { $index = array_search($v, $b); if ($index !== false) { $result[] = $v; unset($b[$index]); } } return $result; } function intersectSimpler(...$twoArrays) { $result = []; sort($twoArrays); foreach ($twoArrays[0] as $v) { $index = array_search($v, $twoArrays[1]); if ($index !== false) { $result[] = $v; unset($twoArrays[1][$index]); } } return $result; } function intersectSimplest($a, $b): array { $result = []; if (count($a) < count($b)) { $short = $a; $long = $b; } else { $short = $b; $long = $a; } foreach ($short as $v) { $index = array_search($v, $long); if ($index !== false) { $result[] = $v; unset($long[$index]); } } return $result; } function intersectSimplish($a, $b): array { $result = []; if (count($a) < count($b)) { $short = $a; $long = $b; } else { $short = $b; $long = $a; } foreach ($short as $v) { if (in_array($v, $long)) { $result[] = $v; unset($long[array_search($v, $long)]); } } return $result; } function intersectSimple($a, $b) { $result = array(); $short = count($a) < count($b) ? $a : $b; $long = count($a) < count($b) ? $b : $a; foreach ($short as $v) { if (in_array($v, $long)) { //if found add to results and remove from b $result[] = $v; unset($long[array_search($v, $long)]); } } return $result; } function intersectAderrahim($a, $b) { $a_values_count = array_count_values($a); $b_values_count = array_count_values($b); $res = array_values(array_intersect($a, $b)); $res_values_count = array_count_values($res); foreach ($res as $key => $val) { if ($res_values_count[$val] > $a_values_count[$val] || $res_values_count[$val] > $b_values_count[$val]) { unset($res[$key]); $res_values_count[$val]--; } } return array_values($res); } //Start timer $start = microtime(true); echo "Start Test\n"; //Run code 100000 times for ($i = 0; $i < 100000; $i++) { $a = [1, 1, 1, 1, 2, 3, 4, 4, 5, 6, 8, 8, 8]; $b = [1, 1, 3, 3, 5, 5, 5, 6, 7, 9, 9]; $result = intersectAderrahim($a, $b); } //Stop timer $end = microtime(true); $time = $end - $start; //Print performance in microseconds echo "Performance Aderrahim: $time\n"; //Start timer $start = microtime(true); echo "Start Test\n"; //Run code 100000 times for ($i = 0; $i < 100000; $i++) { $a = [1, 1, 1, 1, 2, 3, 4, 4, 5, 6, 8, 8, 8]; $b = [1, 1, 3, 3, 5, 5, 5, 6, 7, 9, 9]; $result = noSort($a, $b); } //Stop timer $end = microtime(true); $time = $end - $start; //Print performance in microseconds echo "Performance NoSort: $time\n"; //Start timer $start = microtime(true); echo "Start Test\n"; //Run code 100000 times for ($i = 0; $i < 100000; $i++) { $a = [1, 1, 1, 1, 2, 3, 4, 4, 5, 6, 8, 8, 8]; $b = [1, 1, 3, 3, 5, 5, 5, 6, 7, 9, 9]; $result = intersectSimpler($a, $b); } //Stop timer $end = microtime(true); $time = $end - $start; //Print performance in microseconds echo "Performance Simpler: $time\n"; //Start timer $start = microtime(true); echo "Start Test\n"; //Run code 100000 times for ($i = 0; $i < 100000; $i++) { $a = [1, 1, 1, 1, 2, 3, 4, 4, 5, 6, 8, 8, 8]; $b = [1, 1, 3, 3, 5, 5, 5, 6, 7, 9, 9]; $result = intersectSimplish($a, $b); } //Stop timer $end = microtime(true); $time = $end - $start; //Print performance in microseconds echo "Performance Simplish: $time\n"; //Start timer $start = microtime(true); echo "Start Test\n"; //Run code 100000 times for ($i = 0; $i < 100000; $i++) { $a = [1, 1, 1, 1, 2, 3, 4, 4, 5, 6, 8, 8, 8]; $b = [1, 1, 3, 3, 5, 5, 5, 6, 7, 9, 9]; $result = intersectSimplest($a, $b); } //Stop timer $end = microtime(true); $time = $end - $start; //Print performance in microseconds echo "Performance Simplest: $time\n"; //Start timer $start = microtime(true); echo "Start Test\n"; //Run code 100000 times for ($i = 0; $i < 100000; $i++) { $a = [1, 1, 1, 1, 2, 3, 4, 4, 5, 6, 8, 8, 8]; $b = [1, 1, 3, 3, 5, 5, 5, 6, 7, 9, 9]; $result = intersectSimple($a, $b); } //Stop timer $end = microtime(true); $time = $end - $start; //Print performance in microseconds echo "Performance Simple: $time\n";

Version	System time (s)	User time (s)	Memory (MiB)
8.2.0	0.003	0.517	17.86
8.1.13	0.003	0.537	17.43
8.1.12	0.003	0.542	17.66
8.1.11	0.000	0.550	17.57
8.1.10	0.007	0.546	17.48
8.1.9	0.000	0.553	17.48
8.1.8	0.000	0.527	19.32
8.1.7	0.007	0.532	17.55
8.1.6	0.003	0.542	19.30
8.1.5	0.003	0.551	17.54
8.1.4	0.003	0.557	17.72
8.1.3	0.003	0.532	17.77
8.1.2	0.010	0.521	17.67
8.1.1	0.003	0.553	19.35
8.1.0	0.007	0.551	17.61
8.0.26	0.007	0.537	18.51
8.0.25	0.003	0.549	18.71
8.0.24	0.007	0.551	17.41
8.0.23	0.003	0.564	17.41
8.0.22	0.000	0.547	17.41
8.0.21	0.007	0.564	18.64
8.0.20	0.000	0.553	18.63
8.0.19	0.003	0.554	18.66
8.0.18	0.007	0.559	18.54
8.0.17	0.003	0.553	18.54
8.0.16	0.003	0.545	17.41
8.0.15	0.003	0.578	17.41
8.0.14	0.010	0.580	18.55
8.0.13	0.000	0.562	17.41
8.0.12	0.003	0.545	17.41
8.0.11	0.000	0.562	17.41
8.0.10	0.007	0.567	17.41
8.0.9	0.007	0.538	17.41
8.0.8	0.003	0.537	17.41
8.0.7	0.007	0.560	17.41
8.0.6	0.003	0.541	17.41
8.0.5	0.003	0.550	17.41
8.0.3	0.000	0.558	17.41
8.0.2	0.000	0.561	17.41
8.0.1	0.000	0.549	17.41