3v4l.org

run code in 300+ PHP versions simultaneously
<?php /** * @param array $numbers * * @return array */ function find_even(array $numbers) { if (count($numbers) === 0) { return []; } if (count($numbers) === 1) { return has_even($numbers) ? $numbers : []; } list($left, $right) = array_chunk($numbers, ceil(count($numbers) / 2)); $left = has_even($left) ? $left : []; $right = has_even($right) ? $right : []; $leftResult = (count($left) > 1) ? find_even($left) : $left; $rightResult = (count($right) > 1) ? find_even($right) : $right; return array_merge($leftResult, $rightResult); } /** * @param array $numbers * * @return bool */ function has_even(array $numbers) { echo join(' ', $numbers) . PHP_EOL; foreach ($numbers as $number) { if ($number % 2 === 0) { return true; } } return false; } $numbers = [1, 2, 3, 7, 5, 7, 1, 3, 4, 9, 7, 3, 5, 7, 9]; echo join(' ', $numbers) . PHP_EOL . PHP_EOL; echo PHP_EOL . join(' ', find_even($numbers)) . 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).

VersionSystem time (s)User time (s)Memory (MiB)
8.3.60.0100.01018.14
8.3.50.0120.00721.86
8.3.40.0120.00618.79
8.3.30.0160.00019.03
8.3.20.0000.00820.34
8.3.10.0030.00523.79
8.3.00.0050.00319.18
8.2.180.0100.01018.28
8.2.170.0180.00622.96
8.2.160.0100.00320.57
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0000.00826.16
8.2.120.0000.00821.00
8.2.110.0060.00322.10
8.2.100.0030.00917.91
8.2.90.0040.00419.33
8.2.80.0040.00417.97
8.2.70.0000.00817.75
8.2.60.0030.00618.05
8.2.50.0050.00318.07
8.2.40.0030.00618.28
8.2.30.0070.00318.32
8.2.20.0050.00317.71
8.2.10.0000.00818.27
8.2.00.0040.00417.79
8.1.280.0110.00425.92
8.1.270.0060.00319.13
8.1.260.0040.00426.35
8.1.250.0000.00728.09
8.1.240.0030.00623.96
8.1.230.0040.00819.14
8.1.220.0040.00417.79
8.1.210.0000.00818.77
8.1.200.0030.00617.47
8.1.190.0080.00017.25
8.1.180.0080.00018.10
8.1.170.0030.00618.71
8.1.160.0030.00622.10
8.1.150.0040.00418.97
8.1.140.0040.00417.45
8.1.130.0030.00317.84
8.1.120.0070.00017.60
8.1.110.0000.00817.50
8.1.100.0040.00417.54
8.1.90.0040.00417.58
8.1.80.0000.00717.44
8.1.70.0000.00717.44
8.1.60.0000.00917.69
8.1.50.0080.00017.57
8.1.40.0050.00317.49
8.1.30.0000.00817.70
8.1.20.0040.00417.63
8.1.10.0050.00317.66
8.1.00.0020.00517.51
8.0.300.0000.00718.77
8.0.290.0000.00716.75
8.0.280.0000.00718.41
8.0.270.0000.00717.29
8.0.260.0030.00317.35
8.0.250.0000.00717.04
8.0.240.0030.00516.94
8.0.230.0000.00716.95
8.0.220.0040.00316.99
8.0.210.0000.00716.88
8.0.200.0000.01017.02
8.0.190.0040.00417.06
8.0.180.0070.00316.99
8.0.170.0030.00516.97
8.0.160.0000.00817.03
8.0.150.0000.00716.84
8.0.140.0000.00716.85
8.0.130.0000.00713.37
8.0.120.0040.00416.84
8.0.110.0000.00816.81
8.0.100.0050.00216.87
8.0.90.0000.00716.89
8.0.80.0030.01316.94
8.0.70.0080.00016.96
8.0.60.0050.00216.99
8.0.50.0050.00216.93
8.0.30.0120.01217.24
8.0.20.0100.01017.40
8.0.10.0000.00717.00
8.0.00.0100.00816.82
7.4.330.0020.00215.18
7.4.320.0000.00616.74
7.4.300.0000.00716.64
7.4.290.0030.00516.70
7.4.280.0000.00816.61
7.4.270.0050.00316.61
7.4.260.0040.00416.70
7.4.250.0040.00416.70
7.4.240.0020.00516.72
7.4.230.0000.00716.72
7.4.220.0120.00616.57
7.4.210.0140.00616.69
7.4.200.0000.00816.49
7.4.160.0110.00516.70
7.4.150.0090.00917.40
7.4.140.0110.00617.86
7.4.130.0060.01116.65
7.4.120.0080.00916.48
7.4.110.0100.01316.73
7.4.100.0140.00716.66
7.4.90.0100.00816.53
7.4.80.0120.01319.39
7.4.70.0130.01016.61
7.4.60.0070.01016.62
7.4.50.0030.00516.39
7.4.40.0180.00616.73
7.4.30.0060.01216.53
7.4.00.0140.00315.00
7.3.330.0000.00513.44
7.3.320.0000.00613.25
7.3.310.0070.00016.41
7.3.300.0070.00016.46
7.3.290.0070.00816.50
7.3.280.0120.00716.47
7.3.270.0110.01417.40
7.3.260.0090.00916.60
7.3.250.0110.01316.55
7.3.240.0070.01416.54
7.3.230.0060.01216.54
7.3.210.0160.00616.73
7.3.200.0060.01319.39
7.3.190.0080.00816.77
7.3.180.0170.00616.70
7.3.170.0070.01416.63
7.3.160.0060.01016.73
7.2.330.0100.00716.52
7.2.320.0080.00816.84
7.2.310.0110.01016.66
7.2.300.0100.00716.66
7.2.290.0070.01016.95
7.2.00.0030.00719.54
7.1.100.0030.01218.28
7.1.70.0000.00817.31
7.1.60.0130.01019.46
7.1.50.0070.01317.04
7.1.00.0030.07722.40
7.0.200.0000.00816.81
7.0.140.0000.04022.18
7.0.60.0030.08319.84
7.0.50.0070.08017.87
7.0.40.0030.07020.24
7.0.30.0300.07020.23
7.0.20.0230.08720.20
7.0.10.0100.04020.20
7.0.00.0100.05020.09
5.6.280.0100.06721.12
5.6.210.0100.05320.74
5.6.200.0070.08318.20
5.6.190.0030.09020.60
5.6.180.0370.07320.39
5.6.170.0300.07320.47
5.6.160.0030.08320.50
5.6.150.0070.05318.22
5.6.140.0070.04718.14
5.6.130.0070.03718.14
5.6.120.0100.06321.03
5.6.110.0100.08021.02
5.6.100.0030.07020.99
5.6.90.0070.08721.10
5.6.80.0070.03720.39
5.5.350.4300.04020.48
5.5.340.0130.06717.94
5.5.330.0070.04020.42
5.5.320.0230.06720.29
5.5.310.0330.07720.28
5.5.300.0100.07018.08
5.5.290.0030.08017.99
5.5.280.0070.08020.78
5.5.270.0070.07020.94
5.5.260.0030.06720.85
5.5.250.0070.07720.50
5.5.240.0030.05020.14
5.4.450.0700.06019.59
5.4.440.0570.07019.32
5.4.430.0870.05719.39
5.4.420.0300.06019.52
5.4.410.0600.05719.51
5.4.400.0830.05019.32
5.4.390.0100.06318.71
5.4.380.0200.05718.74
5.4.370.0170.05718.71
5.4.360.0230.04718.74
5.4.350.0270.04718.74
5.4.340.0170.05718.61
5.4.320.0200.05718.78
5.4.310.0270.04718.54
5.4.300.0170.06018.63
5.4.290.0330.06718.51
5.4.280.0270.05018.57
5.4.270.0200.06018.63
5.4.260.0230.05018.80
5.4.250.0200.05318.76
5.4.240.0300.04718.78
5.4.230.0100.06018.77
5.4.220.0330.05318.79
5.4.210.0300.04318.75
5.4.200.0100.06016.63
5.4.190.0130.05718.59
5.4.180.0300.04718.59
5.4.170.0200.05718.79
5.4.160.0300.04318.75
5.4.150.0130.06018.72
5.4.140.0200.05316.45
5.4.130.0170.05316.29
5.4.120.0200.04716.20
5.4.110.0300.04016.30
5.4.100.0230.05316.37
5.4.90.0230.05016.26
5.4.80.0230.04716.25
5.4.70.0330.07316.27
5.4.60.0330.04316.27
5.4.50.0200.05316.29
5.4.40.0270.04316.42
5.4.30.0230.04716.19
5.4.20.0200.05016.17
5.4.10.0270.04316.24
5.4.00.0270.04315.76
5.3.290.0230.05314.69
5.3.280.0200.05714.72
5.3.270.0270.05714.64
5.3.260.0200.07714.79
5.3.250.0200.07714.78
5.3.240.0230.07314.83
5.3.230.0100.06314.73
5.3.220.0170.05714.57
5.3.210.0130.06014.77
5.3.200.0100.06014.59
5.3.190.0230.05314.62
5.3.180.0170.05714.61
5.3.170.0200.05014.62
5.3.160.0270.04314.66
5.3.150.0200.05714.58
5.3.140.0130.05714.73
5.3.130.0230.05014.61
5.3.120.0270.05014.57
5.3.110.0330.05714.59
5.3.100.0230.07014.08
5.3.90.0200.05314.06
5.3.80.0100.06014.05
5.3.70.0200.04714.04
5.3.60.0200.05014.12
5.3.50.0230.04314.15
5.3.40.0300.04714.00
5.3.30.0130.05014.05
5.3.20.0100.05713.70
5.3.10.0230.04313.77
5.3.00.0200.05013.74
5.2.170.0130.04311.17
5.2.160.0200.04011.17
5.2.150.0100.05011.16
5.2.140.0070.05311.27
5.2.130.0270.03011.17
5.2.120.0300.03311.16
5.2.110.0200.03711.30
5.2.100.0200.03311.14
5.2.90.0200.03711.31
5.2.80.0100.04711.20
5.2.70.0130.04311.15
5.2.60.0130.04311.08
5.2.50.0130.04311.05
5.2.40.0270.03711.21
5.2.30.0130.04010.98
5.2.20.0230.03011.02
5.2.10.0130.04010.88
5.2.00.0130.04010.78
5.1.60.0130.03010.01
5.1.50.0100.0379.99
5.1.40.0170.03710.07
5.1.30.0170.03310.35
5.1.20.0170.03710.41
5.1.10.0170.03710.16
5.1.00.0130.03710.25
5.0.50.0070.0338.58
5.0.40.0170.0208.46
5.0.30.0100.0438.42
5.0.20.0100.0278.40
5.0.10.0030.0338.15
5.0.00.0070.0438.20
4.4.90.0030.0275.92
4.4.80.0030.0275.87
4.4.70.0030.0275.93
4.4.60.0100.0205.98
4.4.50.0070.0205.93
4.4.40.0030.0405.88
4.4.30.0030.0335.92
4.4.20.0100.0205.93
4.4.10.0030.0335.95
4.4.00.0030.0476.04
4.3.110.0130.0175.83
4.3.100.0100.0205.91
4.3.90.0000.0305.80
4.3.80.0030.0375.84
4.3.70.0100.0205.80
4.3.60.0100.0235.79
4.3.50.0200.0235.82
4.3.40.0070.0435.81
4.3.30.0030.0234.68
4.3.20.0030.0234.68
4.3.10.0070.0234.68
4.3.00.0100.0236.79

preferences:
45.79 ms | 401 KiB | 5 Q