3v4l.org

run code in 300+ PHP versions simultaneously
<?php $x = null; empty($x); is_null($x); isset($x) ?>

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)
8.3.60.0160.00616.38
8.3.50.0140.00716.51
8.3.40.0000.01618.59
8.3.30.0130.00318.59
8.3.20.0130.00722.11
8.3.10.0130.01023.41
8.3.00.0040.00421.92
8.2.180.0120.00918.16
8.2.170.0030.01222.96
8.2.160.0060.00919.04
8.2.150.0090.00924.18
8.2.140.0040.01424.66
8.2.130.0060.00321.05
8.2.120.0050.00326.35
8.2.110.0120.00922.08
8.2.100.0040.00819.63
8.2.90.0030.00619.13
8.2.80.0000.00817.97
8.2.70.0030.00617.38
8.2.60.0060.00317.80
8.2.50.0060.00318.10
8.2.40.0050.00220.55
8.2.30.0000.00821.02
8.2.20.0000.00717.99
8.2.10.0030.00517.86
8.2.00.0030.00517.97
8.1.280.0080.00825.92
8.1.270.0000.00823.91
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0070.00320.78
8.1.230.0040.00719.14
8.1.220.0080.00017.74
8.1.210.0000.00818.77
8.1.200.0000.00917.35
8.1.190.0030.00517.23
8.1.180.0030.00518.10
8.1.170.0000.00820.62
8.1.160.0040.00419.06
8.1.150.0030.00620.57
8.1.140.0040.00419.45
8.1.130.0030.00318.88
8.1.120.0000.00817.22
8.1.110.0040.00417.22
8.1.100.0040.00417.33
8.1.90.0040.00417.28
8.1.80.0040.00417.39
8.1.70.0080.00017.38
8.1.60.0050.00317.56
8.1.50.0040.00417.38
8.1.40.0030.00517.46
8.1.30.0040.00417.59
8.1.20.0000.00817.56
8.1.10.0040.00417.56
8.1.00.0020.00517.44
8.0.300.0040.00421.84
8.0.290.0000.00816.63
8.0.280.0000.00718.42
8.0.270.0000.00717.15
8.0.260.0000.00616.60
8.0.250.0070.00016.77
8.0.240.0040.00916.78
8.0.230.0000.00716.87
8.0.220.0050.00216.80
8.0.210.0000.00716.85
8.0.200.0070.00016.76
8.0.190.0000.00716.90
8.0.180.0070.00316.85
8.0.170.0000.00716.86
8.0.160.0000.00716.73
8.0.150.0030.00516.88
8.0.140.0000.00716.70
8.0.130.0000.00713.20
8.0.120.0050.00216.66
8.0.110.0000.00916.93
8.0.100.0040.00416.80
8.0.90.0040.00416.84
8.0.80.0110.00716.77
8.0.70.0050.00316.71
8.0.60.0000.00816.88
8.0.50.0000.00816.66
8.0.30.0070.01016.86
8.0.20.0140.00617.40
8.0.10.0000.00716.77
8.0.00.0070.01116.82
7.4.330.0000.00615.55
7.4.320.0000.00616.29
7.4.300.0050.00216.52
7.4.290.0030.00316.53
7.4.280.0000.00816.42
7.4.270.0030.00316.44
7.4.260.0030.00316.50
7.4.250.0040.00416.43
7.4.240.0000.00716.45
7.4.230.0030.00316.54
7.4.220.0090.00916.46
7.4.210.0090.00616.54
7.4.200.0000.00716.59
7.4.160.0080.01016.38
7.4.150.0140.00317.40
7.4.140.0120.00617.86
7.4.130.0240.00016.48
7.4.120.0110.01016.52
7.4.110.0130.00316.43
7.4.100.0100.00616.42
7.4.90.0080.00816.53
7.4.80.0030.01419.39
7.4.70.0130.00316.21
7.4.60.0130.00616.41
7.4.50.0030.00716.41
7.4.40.0120.00416.25
7.4.30.0090.00616.28
7.4.00.0120.00614.99
7.3.330.0030.00513.00
7.3.320.0000.00713.07
7.3.310.0000.00716.13
7.3.300.0000.00616.11
7.3.290.0040.00316.16
7.3.280.0080.00816.11
7.3.270.0080.00817.40
7.3.260.0120.00716.19
7.3.250.0100.00716.17
7.3.240.0140.00716.16
7.3.230.0150.00616.36
7.3.210.0040.01416.31
7.3.200.0100.00716.07
7.3.190.0060.00916.16
7.3.180.0060.00916.34
7.3.170.0090.00616.34
7.3.160.0110.00516.23
7.3.10.0050.00516.55
7.3.00.0060.00616.51
7.2.330.0140.00316.47
7.2.320.0080.01716.42
7.2.310.0080.01216.32
7.2.300.0060.01116.45
7.2.290.0130.00416.52
7.2.130.0100.00316.61
7.2.120.0100.00316.62
7.2.110.0040.01216.61
7.2.100.0090.00616.78
7.2.90.0000.01416.86
7.2.80.0060.00616.64
7.2.70.0030.00616.35
7.2.60.0030.01016.68
7.2.50.0030.00916.65
7.2.40.0060.00616.89
7.2.30.0040.00716.53
7.2.20.0060.00316.79
7.2.10.0000.01016.77
7.2.00.0070.00717.88
7.1.250.0080.00015.62
7.1.200.0060.00915.72
7.1.100.0000.00817.68
7.1.70.0000.01917.17
7.1.60.0200.01335.02
7.1.50.0260.01334.41
7.1.40.0310.01634.46
7.1.30.0200.01634.50
7.1.20.0250.01634.46
7.1.10.0040.01616.35
7.1.00.0070.01316.38
7.0.200.0050.01316.62
7.0.190.0030.01516.78
7.0.180.0130.00616.16
7.0.170.0060.01216.39
7.0.160.0060.01316.13
7.0.150.0060.01316.22
7.0.140.0000.01916.14
7.0.130.0070.01316.41
7.0.120.0070.01416.36
7.0.110.0060.01416.11
7.0.100.0080.01316.36
7.0.90.0060.01216.23
7.0.80.0100.01316.39
7.0.70.0100.00716.14
7.0.60.0030.01515.97
7.0.50.0120.01116.20
7.0.40.0080.01416.63
7.0.30.0090.01116.54
7.0.20.0070.01116.22
7.0.10.0030.01516.32
7.0.00.0060.01316.06

preferences:
39.53 ms | 401 KiB | 5 Q