3v4l.org

run code in 300+ PHP versions simultaneously
<?php $test = NULL; echo is_null(unserialize($test));

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)
8.3.60.0100.01016.50
8.3.50.0080.01221.89
8.3.40.0110.01118.67
8.3.30.0030.01018.97
8.3.20.0070.00020.09
8.3.10.0080.00021.77
8.3.00.0050.00319.38
8.2.180.0170.00318.29
8.2.170.0070.00722.96
8.2.160.0100.01020.35
8.2.150.0080.00024.18
8.2.140.0090.00024.66
8.2.130.0040.00426.16
8.2.120.0050.00319.24
8.2.110.0060.00321.07
8.2.100.0070.00417.75
8.2.90.0000.00719.23
8.2.80.0030.00617.97
8.2.70.0030.00617.63
8.2.60.0000.00717.93
8.2.50.0040.00418.07
8.2.40.0060.00319.95
8.2.30.0050.00318.16
8.2.20.0060.00317.73
8.2.10.0080.00017.91
8.2.00.0070.00017.57
8.1.280.0120.00625.92
8.1.270.0080.00018.86
8.1.260.0040.00426.35
8.1.250.0140.00028.09
8.1.240.0090.00022.80
8.1.230.0090.00317.42
8.1.220.0040.00417.74
8.1.210.0050.00318.77
8.1.200.0040.00417.13
8.1.190.0060.00317.10
8.1.180.0050.00318.10
8.1.170.0080.00020.29
8.1.160.0040.00421.89
8.1.150.0040.00418.81
8.1.140.0040.00417.37
8.1.130.0030.00317.86
8.1.120.0050.00517.35
8.1.110.0030.00317.41
8.1.100.0050.00217.38
8.1.90.0070.00017.38
8.1.80.0030.00417.37
8.1.70.0030.00317.45
8.1.60.0030.00617.57
8.1.50.0060.00317.43
8.1.40.0060.00317.43
8.1.30.0040.00417.53
8.1.20.0000.00717.45
8.1.10.0030.00517.50
8.1.00.0000.00817.41
8.0.300.0040.00418.77
8.0.290.0040.00416.63
8.0.280.0040.00418.36
8.0.270.0050.00317.30
8.0.260.0080.00017.20
8.0.250.0030.00316.98
8.0.240.0000.00616.79
8.0.230.0030.00316.81
8.0.220.0000.00716.76
8.0.210.0040.00416.77
8.0.200.0030.00316.86
8.0.190.0040.00416.75
8.0.180.0040.00416.76
8.0.170.0000.00816.81
8.0.160.0060.00316.77
8.0.150.0070.00016.76
8.0.140.0030.00316.82
8.0.130.0030.00513.24
8.0.120.0040.00416.71
8.0.110.0040.00416.79
8.0.100.0000.00816.75
8.0.90.0040.00416.68
8.0.80.0060.00916.76
8.0.70.0070.00016.68
8.0.60.0080.00016.77
8.0.50.0000.00816.77
8.0.30.0140.01217.01
8.0.20.0150.01217.40
8.0.10.0000.00816.81
8.0.00.0140.00616.56
7.4.330.0050.00015.03
7.4.320.0030.00316.45
7.4.300.0000.00616.56
7.4.290.0030.00316.43
7.4.280.0090.00616.34
7.4.270.0080.00016.41
7.4.260.0000.00616.50
7.4.250.0000.00716.37
7.4.240.0040.00316.41
7.4.230.0040.00416.42
7.4.220.0070.01116.54
7.4.210.0040.01016.50
7.4.200.0030.00316.50
7.4.160.0080.00816.38
7.4.150.0140.00417.40
7.4.140.0090.01217.86
7.4.130.0080.01116.52
7.4.120.0120.00816.42
7.4.110.0070.01016.51
7.4.100.0130.00316.42
7.4.90.0070.01016.36
7.4.80.0090.00919.39
7.4.70.0090.00916.29
7.4.60.0120.00316.41
7.4.50.0000.00916.61
7.4.40.0080.00816.32
7.4.30.0090.00916.47
7.4.00.0070.01114.70
7.3.330.0060.00012.98
7.3.320.0110.00012.93
7.3.310.0000.00716.21
7.3.300.0000.00716.02
7.3.290.0000.00716.12
7.3.280.0080.00716.11
7.3.270.0040.01517.40
7.3.260.0140.00316.41
7.3.250.0110.00616.37
7.3.240.0110.00716.15
7.3.230.0040.01816.39
7.3.210.0100.01416.12
7.3.200.0110.01019.39
7.3.190.0080.01216.18
7.3.180.0070.00716.47
7.3.170.0150.00416.37
7.3.160.0120.00616.32
7.2.330.0110.00616.41
7.2.320.0120.00616.21
7.2.310.0000.01816.80
7.2.300.0090.00916.41
7.2.290.0090.01316.34
7.2.00.0030.00919.45
7.1.100.0280.00317.48
7.1.70.0030.00716.92
7.1.60.0140.01019.50
7.1.50.0070.01716.99
7.1.00.0130.06722.31
7.0.200.0220.00315.05
7.0.140.0000.06721.95
7.0.60.0030.09020.02
7.0.50.0030.06317.89
7.0.40.0100.08319.90
7.0.30.0230.04020.04
7.0.20.0470.06320.00
7.0.10.0300.05720.00
7.0.00.0030.04720.20
5.6.280.0070.07021.11
5.6.210.0100.07720.53
5.6.200.0070.05718.16
5.6.190.0100.05020.60
5.6.180.0300.07320.40
5.6.170.0570.03720.50
5.6.160.0070.08720.50
5.6.150.0100.07718.13
5.6.140.0030.08318.14
5.6.130.0130.08018.11
5.6.120.0070.08321.11
5.6.110.0130.08020.93
5.6.100.0100.04721.12
5.6.90.0200.06321.09
5.6.80.0100.08720.50
5.6.70.0230.07020.36
5.5.350.0270.06720.29
5.5.340.0030.04017.92
5.5.330.0030.06720.56
5.5.320.0030.07020.21
5.5.310.0400.06720.20
5.5.300.0070.08018.00
5.5.290.0070.05717.91
5.5.280.0030.04020.76
5.5.270.0070.04720.96
5.5.260.0100.06320.88
5.5.250.0070.08020.68
5.5.240.0130.07720.18
5.4.450.0370.06319.61
5.4.440.1000.05019.58
5.4.430.0070.06319.45
5.4.420.1000.04719.47
5.4.410.0270.06318.68
5.4.400.0330.07018.53
5.4.390.0370.05018.77
5.4.380.0270.06018.66
5.4.370.0230.06018.56
5.4.360.0270.06018.73
5.4.350.0370.05318.70
5.4.340.0270.06018.59
5.4.320.0400.05018.71
5.4.310.0500.06018.56
5.4.300.0400.04718.61
5.4.290.0330.05018.56
5.4.280.0330.05018.67
5.4.270.0370.06018.61
5.4.260.0370.04318.46
5.4.250.0430.05318.82
5.4.240.0330.06018.60
5.4.230.0370.04718.70
5.4.220.0400.05018.68
5.4.210.0230.06318.72
5.4.200.0370.05316.64
5.4.190.0200.06318.46
5.4.180.0300.05318.66
5.4.170.0330.05718.57
5.4.160.0330.04718.52
5.4.150.0230.07018.58
5.4.140.0270.05316.03
5.4.130.0370.05316.29
5.4.120.0330.04716.25
5.4.110.0270.05316.16
5.4.100.0500.04316.25
5.4.90.0370.06316.07
5.4.80.0370.05716.26
5.4.70.0370.05716.14
5.4.60.0500.05316.12
5.4.50.0670.04316.18
5.4.40.0400.07316.29
5.4.30.0400.07016.08
5.4.20.0500.07016.20
5.4.10.0570.05316.08
5.4.00.0570.06315.59
5.3.290.0500.07314.65
5.3.280.0600.06014.57
5.3.270.0500.05314.56
5.3.260.0370.05714.56
5.3.250.0470.05014.67
5.3.240.0400.05014.49
5.3.230.0500.05014.52
5.3.220.0570.06014.65
5.3.210.0700.06314.54
5.3.200.0400.07314.50
5.3.190.0100.07714.64
5.3.180.0270.06014.55
5.3.170.0600.06714.63
5.3.160.0670.05314.60
5.3.150.0530.06014.53
5.3.140.0370.05314.57
5.3.130.0330.06014.61
5.3.120.0500.05714.45
5.3.110.0470.08014.61
5.3.100.0300.08014.12
5.3.90.0500.07313.93
5.3.80.0500.07014.11
5.3.70.0400.06713.99
5.3.60.0270.07314.07
5.3.50.0400.06713.90
5.3.40.0330.07013.85
5.3.30.0470.04313.85
5.3.20.0500.05013.68
5.3.10.0400.06713.63
5.3.00.0470.06713.72
5.2.170.0300.06311.06
5.2.160.0330.05311.06
5.2.150.0370.05711.18
5.2.140.0330.05711.10
5.2.130.0430.05011.24
5.2.120.0270.05011.15
5.2.110.0230.05311.08
5.2.100.0200.04711.16
5.2.90.0430.04011.14
5.2.80.0300.04311.06
5.2.70.0170.05311.13
5.2.60.0170.05011.02
5.2.50.0270.03711.04
5.2.40.0070.05310.91
5.2.30.0230.04010.91
5.2.20.0230.05710.91
5.2.10.0300.04710.85
5.2.00.0300.06010.73
5.1.60.0370.0439.96
5.1.50.0300.0309.95
5.1.40.0300.0379.99
5.1.30.0230.04310.44
5.1.20.0230.05010.48
5.1.10.0200.04010.07
5.1.00.0270.04010.12
5.0.50.0130.0408.66
5.0.40.0170.0378.47
5.0.30.0130.0608.33
5.0.20.0230.0378.32
5.0.10.0070.0478.24
5.0.00.0200.0508.22
4.4.90.0130.0235.89
4.4.80.0070.0235.89
4.4.70.0100.0235.86
4.4.60.0270.0175.85
4.4.50.0170.0235.88
4.4.40.0200.0405.92
4.4.30.0130.0305.93
4.4.20.0230.0205.86
4.4.10.0230.0305.95
4.4.00.0130.0435.94
4.3.110.0070.0305.79
4.3.100.0130.0205.82
4.3.90.0170.0275.84
4.3.80.0170.0405.80
4.3.70.0130.0235.81
4.3.60.0070.0235.78
4.3.50.0100.0275.85
4.3.40.0100.0435.75
4.3.30.0100.0234.60
4.3.20.0030.0234.58
4.3.10.0130.0204.51
4.3.00.0170.0236.63

preferences:
40.28 ms | 401 KiB | 5 Q