3v4l.org

run code in 300+ PHP versions simultaneously
<?php function is_even(int $n): bool { if ($n < 0) { $n = abs($n); } var_dump($n); if ($n === 0) { return true; } if ($n === 1) { return false; } return is_even($n - 1); } var_dump(is_even(-4)); die(); for($i = -5; $i <= 12; $i++) { printf('is %d even? %s.%s', $i, is_even($i) ? 'yes': 'no', "\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).

VersionSystem time (s)User time (s)Memory (MiB)
8.3.60.0090.00616.88
8.3.50.0070.00716.46
8.3.40.0140.00018.64
8.3.30.0180.00418.79
8.3.20.0040.00424.18
8.3.10.0000.00924.66
8.3.00.0040.00426.16
8.2.180.0140.00425.92
8.2.170.0140.00719.02
8.2.160.0100.00722.96
8.2.150.0080.00025.66
8.2.140.0070.00024.66
8.2.130.0080.00026.16
8.2.120.0040.00420.50
8.2.110.0040.00721.03
8.2.100.0080.00417.91
8.2.90.0050.00317.63
8.2.80.0000.00918.91
8.2.70.0030.00517.50
8.2.60.0000.00817.63
8.2.50.0040.00418.05
8.2.40.0050.00318.14
8.2.30.0050.00217.93
8.2.20.0070.00017.91
8.2.10.0070.00019.17
8.2.00.0030.00319.09
8.1.280.0140.00425.92
8.1.270.0070.00023.99
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0030.00719.11
8.1.230.0000.01221.04
8.1.220.0090.00018.52
8.1.210.0040.00418.77
8.1.200.0040.00417.53
8.1.190.0040.00417.23
8.1.180.0040.00418.10
8.1.170.0040.00418.54
8.1.160.0050.00318.72
8.1.150.0040.00418.86
8.1.140.0040.00318.67
8.1.130.0000.00819.93
8.1.120.0050.00217.44
8.1.110.0020.00517.41
8.1.100.0070.00017.38
8.1.90.0000.00717.35
8.1.80.0060.00317.38
8.1.70.0040.00417.39
8.1.60.0030.00617.57
8.1.50.0080.00017.48
8.1.40.0030.00617.50
8.1.30.0040.00417.58
8.1.20.0050.00217.56
8.1.10.0000.00717.55
8.1.00.0040.00417.52
8.0.300.0060.00318.77
8.0.290.0070.00016.75
8.0.280.0000.00720.11
8.0.270.0030.00317.99
8.0.260.0030.00320.16
8.0.250.0060.00316.96
8.0.240.0000.00716.92
8.0.230.0070.00017.00
8.0.220.0000.00816.80
8.0.210.0030.00316.86
8.0.200.0000.00616.96
8.0.190.0000.00816.87
8.0.180.0040.00416.83
8.0.170.0060.00316.95
8.0.160.0080.00016.86
8.0.150.0040.00416.89
8.0.140.0050.00216.80
8.0.130.0030.00313.28
8.0.120.0000.00716.84
8.0.110.0080.00016.68
8.0.100.0030.00516.95
8.0.90.0000.00716.95
8.0.80.0080.01016.91
8.0.70.0040.00416.75
8.0.60.0040.00416.96
8.0.50.0040.00416.77
8.0.30.0150.00317.04
8.0.20.0130.01016.95
8.0.10.0050.00216.96
8.0.00.0110.00716.78
7.4.330.0050.00015.55
7.4.320.0030.00316.49
7.4.300.0070.00016.45
7.4.290.0000.00716.57
7.4.280.0040.00416.64
7.4.270.0000.00716.45
7.4.260.0000.00513.28
7.4.250.0000.00716.49
7.4.240.0070.00016.61
7.4.230.0000.00816.36
7.4.220.0000.00816.52
7.4.210.0060.01116.58
7.4.200.0000.00816.40
7.4.130.0090.00916.51
7.4.120.0150.01016.66
7.4.110.0070.01416.52
7.4.100.0030.01316.62
7.4.90.0070.01016.53
7.4.80.0160.00316.46
7.4.70.0090.00816.38
7.4.60.0090.00916.61
7.4.50.0070.01016.30
7.4.40.0100.00716.57
7.4.30.0060.01616.50
7.4.20.0140.00716.24
7.4.10.0090.00916.57
7.4.00.0100.00716.48
7.3.330.0030.00316.23
7.3.320.0030.00313.29
7.3.310.0030.00316.40
7.3.300.0040.00416.38
7.3.290.0110.00616.39
7.3.280.1260.02115.37
7.3.260.0080.00916.47
7.3.230.0130.00316.61
7.3.210.0100.00716.65
7.3.200.0090.00916.38
7.3.190.0110.00716.70
7.3.180.0070.01116.34
7.3.170.0100.00716.55
7.3.160.0070.01016.64
7.3.150.0030.01616.26
7.3.140.0100.00716.32
7.3.130.0070.01316.33
7.3.120.0100.00716.33
7.3.110.0090.00616.24
7.3.100.0070.01316.36
7.3.90.0080.01416.34
7.3.80.0090.01416.34
7.3.70.0100.01316.43
7.3.60.0120.00616.38
7.3.50.0120.00616.28
7.3.40.0100.00716.35
7.3.30.0140.00316.43
7.3.20.0120.00616.40
7.3.10.0070.01016.32
7.3.00.0120.01216.57
7.2.330.0120.01216.74
7.2.320.0170.00016.73
7.2.310.0040.01816.39
7.2.300.0150.00316.64
7.2.290.0110.00616.54
7.2.280.0060.01616.43
7.2.270.0100.00916.63
7.2.260.0070.01416.46
7.2.250.0100.00716.68
7.2.240.0100.00716.43
7.2.230.0120.00616.42
7.2.220.0160.00816.73
7.2.210.0110.01116.69
7.2.200.0160.00016.47
7.2.190.0090.01216.41
7.2.180.0060.01216.54
7.2.170.0070.01116.54
7.2.160.0090.00916.42
7.2.150.0110.01116.57
7.2.140.0120.00616.45
7.2.130.0070.01416.67
7.2.120.0110.00716.57
7.2.110.0100.00716.45
7.2.100.0100.00716.67
7.2.90.0060.01216.53
7.2.80.0070.01716.59
7.2.70.0180.00016.64
7.2.60.0040.01516.62
7.2.50.0000.01816.57
7.2.40.0030.01516.68
7.2.30.0090.00916.47
7.2.20.0090.00916.62
7.2.10.0170.00616.48
7.2.00.0130.00916.60

preferences:
58.83 ms | 401 KiB | 5 Q