3v4l.org

run code in 300+ PHP versions simultaneously
<?php $foo = null; is_null($foo) ($foo === null);

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)
8.3.60.0060.00916.73
8.3.50.0090.00921.92
8.3.40.0120.00918.68
8.3.30.0110.00418.66
8.3.20.0050.00320.21
8.3.10.0040.00423.47
8.3.00.0040.00419.25
8.2.180.0140.00016.50
8.2.170.0080.00822.96
8.2.160.0130.00022.20
8.2.150.0030.00524.18
8.2.140.0040.00424.66
8.2.130.0060.00317.48
8.2.120.0070.00026.35
8.2.110.0030.00620.32
8.2.100.0070.00417.80
8.2.90.0080.00019.13
8.2.80.0030.00517.97
8.2.70.0030.00617.63
8.2.60.0040.00417.90
8.2.50.0000.00818.07
8.2.40.0030.00619.38
8.2.30.0020.00520.49
8.2.20.0090.00017.52
8.2.10.0040.00418.02
8.2.00.0040.00418.05
8.1.280.0070.01325.92
8.1.270.0090.00324.01
8.1.260.0070.00028.09
8.1.250.0080.00028.09
8.1.240.0040.00421.99
8.1.230.0080.00417.66
8.1.220.0080.00017.74
8.1.210.0040.00418.77
8.1.200.0060.00317.23
8.1.190.0080.00017.22
8.1.180.0070.00018.10
8.1.170.0000.00818.36
8.1.160.0040.00421.84
8.1.150.0000.00718.77
8.1.140.0040.00417.42
8.1.130.0030.00317.54
8.1.120.0040.00417.30
8.1.110.0070.00017.36
8.1.100.0040.00417.41
8.1.90.0030.00317.32
8.1.80.0030.00517.31
8.1.70.0030.00317.32
8.1.60.0040.00417.52
8.1.50.0030.00517.40
8.1.40.0050.00317.52
8.1.30.0000.00817.67
8.1.20.0040.00417.44
8.1.10.0020.00517.49
8.1.00.0070.00017.51
8.0.300.0040.00418.77
8.0.290.0070.00016.75
8.0.280.0000.00718.36
8.0.270.0000.00816.76
8.0.260.0030.00517.19
8.0.250.0000.00716.79
8.0.240.0000.00716.99
8.0.230.0030.00616.84
8.0.220.0040.00416.75
8.0.210.0040.00416.84
8.0.200.0030.00316.94
8.0.190.0000.00716.91
8.0.180.0000.00716.81
8.0.170.0080.00016.90
8.0.160.0020.00516.88
8.0.150.0000.00716.78
8.0.140.0000.00716.90
8.0.130.0060.00013.32
8.0.120.0050.00316.89
8.0.110.0000.00716.78
8.0.100.0000.00716.77
8.0.90.0000.00716.85
8.0.80.0000.01516.92
8.0.70.0040.00416.90
8.0.60.0040.00416.79
8.0.50.0030.00516.88
8.0.30.0090.00717.05
8.0.20.0120.00617.40
8.0.10.0060.00317.12
8.0.00.0110.00916.60
7.4.330.0050.00016.77
7.4.320.0000.00616.53
7.4.300.0030.00316.54
7.4.290.0040.00216.47
7.4.280.0030.00516.44
7.4.270.0030.00316.60
7.4.260.0070.00016.57
7.4.250.0070.00016.47
7.4.240.0000.00716.53
7.4.230.0030.00316.29
7.4.220.0090.01316.67
7.4.210.0030.01016.59
7.4.200.0030.00316.38
7.4.160.0040.01116.60
7.4.150.0180.02117.40
7.4.140.0100.01017.86
7.4.130.0110.01116.54
7.4.120.0100.00516.35
7.4.110.0090.01216.63
7.4.100.0090.00916.46
7.4.90.0170.00316.54
7.4.80.0110.00619.39
7.4.70.0070.01016.54
7.4.60.0160.00616.43
7.4.50.0060.01016.43
7.4.40.0120.00316.52
7.4.30.0170.00616.32
7.4.00.0070.00814.97
7.3.330.0030.00312.98
7.3.320.0030.00313.12
7.3.310.0070.00016.29
7.3.300.0000.00716.19
7.3.290.0060.01316.23
7.3.280.0060.00916.27
7.3.270.0140.00317.40
7.3.260.0090.01216.27
7.3.240.0080.01316.29
7.3.230.0130.00616.39
7.3.210.0140.00316.50
7.3.200.0060.01016.17
7.3.190.0060.01516.25
7.3.180.0130.00316.40
7.3.170.0130.00316.42
7.3.160.0040.01216.24
7.3.120.0100.00714.83
7.3.110.0070.00714.58
7.3.100.0060.00615.02
7.3.90.0040.00814.86
7.3.80.0000.01014.60
7.3.70.0110.00414.89
7.3.60.0030.01014.83
7.3.50.0030.01014.65
7.3.40.0060.01014.57
7.3.30.0060.00314.80
7.3.20.0120.00316.38
7.3.10.0110.00016.57
7.3.00.0040.00816.62
7.2.330.0160.00616.61
7.2.320.0130.00316.61
7.2.310.0060.01516.53
7.2.300.0110.01116.38
7.2.290.0030.01316.54
7.2.250.0090.00914.87
7.2.240.0030.00915.11
7.2.230.0030.00814.66
7.2.220.0040.01115.00
7.2.210.0040.00715.07
7.2.200.0080.00415.00
7.2.190.0060.00314.93
7.2.180.0070.00714.84
7.2.170.0000.01515.00
7.2.60.0030.01016.85
7.2.00.0070.00719.11
7.1.330.0000.01715.52
7.1.320.0060.01015.75
7.1.310.0060.00615.48
7.1.300.0060.00315.63
7.1.290.0060.00615.70
7.1.280.0110.00415.26
7.1.270.0060.00615.69
7.1.260.0130.00015.72
7.1.200.0060.00615.58
7.1.100.0040.00717.80
7.1.70.0070.00316.89
7.1.60.0180.00719.48
7.1.50.0090.01216.78
7.1.00.0100.07022.54
7.0.200.0050.00516.54
7.0.60.0200.08019.77
7.0.50.0030.05717.76
7.0.40.0130.08020.23
7.0.30.0230.03720.30
7.0.20.0300.07020.09
7.0.10.0100.03720.17
7.0.00.0130.08020.18
5.6.280.0030.03020.82
5.6.210.0130.08020.69
5.6.200.0100.07318.25
5.6.190.0000.04720.61
5.6.180.0330.05320.42
5.6.170.0270.04320.76
5.6.160.0100.07720.44
5.6.150.0170.07318.20
5.6.140.0070.08018.19
5.6.130.0070.06718.16
5.6.120.0070.08720.98
5.6.110.0200.07021.04
5.6.100.0200.06721.00
5.6.90.0200.07321.09
5.6.80.0070.05720.37
5.5.350.0230.08020.33
5.5.340.0200.05318.02
5.5.330.0030.04020.32
5.5.320.0030.07020.27
5.5.310.0200.05720.29
5.5.300.0100.04317.95
5.5.290.0030.05318.07
5.5.280.0000.04720.72
5.5.270.0070.09020.86
5.5.260.0130.06320.85
5.5.250.0000.05320.58
5.5.240.0230.07020.36

preferences:
45.54 ms | 401 KiB | 5 Q