3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(NULL < 1); var_dump(NULL == 0); var_dump(NULL < 0); var_dump(NULL < -1); var_dump(NULL > -1);

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)
8.3.60.0150.00418.31
8.3.50.0100.00716.57
8.3.40.0140.00018.54
8.3.30.0090.00618.55
8.3.20.0050.00220.34
8.3.10.0080.00021.74
8.3.00.0040.00422.43
8.2.180.0150.00616.32
8.2.170.0030.01722.96
8.2.160.0110.00320.43
8.2.150.0000.00824.18
8.2.140.0080.00024.66
8.2.130.0070.00026.16
8.2.120.0090.00017.25
8.2.110.0060.00319.24
8.2.100.0090.00317.38
8.2.90.0050.00319.10
8.2.80.0040.00417.97
8.2.70.0000.00817.50
8.2.60.0000.00817.80
8.2.50.0000.00818.07
8.2.40.0050.00321.19
8.2.30.0040.00417.88
8.2.20.0000.00717.58
8.2.10.0000.00717.84
8.2.00.0050.00217.92
8.1.280.0040.01125.92
8.1.270.0050.00320.19
8.1.260.0000.00926.35
8.1.250.0050.00328.09
8.1.240.0000.01019.06
8.1.230.0120.00017.42
8.1.220.0000.00817.74
8.1.210.0030.00518.77
8.1.200.0060.00317.22
8.1.190.0080.00016.88
8.1.180.0000.00818.10
8.1.170.0040.00418.57
8.1.160.0000.00721.87
8.1.150.0040.00418.77
8.1.140.0050.00317.23
8.1.130.0030.00317.57
8.1.120.0000.00817.38
8.1.110.0050.00217.33
8.1.100.0040.00417.39
8.1.90.0040.00417.29
8.1.80.0000.00717.36
8.1.70.0070.00017.22
8.1.60.0030.00517.45
8.1.50.0030.00617.35
8.1.40.0000.00917.38
8.1.30.0030.00517.54
8.1.20.0080.00017.49
8.1.10.0030.00617.41
8.1.00.0030.01017.16
8.0.300.0000.00718.77
8.0.290.0040.00416.63
8.0.280.0070.00018.24
8.0.270.0000.00717.04
8.0.260.0030.00317.13
8.0.250.0000.00716.73
8.0.240.0040.00416.81
8.0.230.0000.00716.79
8.0.220.0070.00016.72
8.0.210.0030.00316.77
8.0.200.0030.00316.67
8.0.190.0020.00516.83
8.0.180.0000.00716.82
8.0.170.0040.00416.78
8.0.160.0000.00816.77
8.0.150.0000.00816.68
8.0.140.0000.00716.69
8.0.130.0000.00613.19
8.0.120.0040.00416.80
8.0.110.0040.00416.76
8.0.100.0040.00416.57
8.0.90.0030.00516.64
8.0.80.0060.00916.74
8.0.70.0040.00416.56
8.0.60.0070.00016.78
8.0.50.0070.00016.77
8.0.30.0090.01017.05
8.0.20.0070.01217.40
8.0.10.0050.00216.93
8.0.00.0100.01016.69
7.4.330.0030.00315.08
7.4.320.0030.00316.47
7.4.300.0030.00316.47
7.4.290.0030.00316.27
7.4.280.0040.00416.37
7.4.270.0000.00716.36
7.4.260.0080.00016.50
7.4.250.0000.00716.35
7.4.240.0020.00516.39
7.4.230.0070.00016.54
7.4.220.0060.01016.54
7.4.210.0070.01216.41
7.4.200.0000.00716.28
7.4.160.0060.00916.34
7.4.150.0120.00817.40
7.4.140.0180.00217.86
7.4.130.0150.00516.31
7.4.120.0140.00816.44
7.4.110.0170.00016.33
7.4.100.0030.01316.32
7.4.90.0110.00816.37
7.4.80.0130.00419.39
7.4.70.0070.01016.37
7.4.60.0120.00316.55
7.4.50.0000.00416.28
7.4.40.0070.01316.23
7.4.30.0070.01016.44
7.4.00.0060.00914.69
7.3.330.0030.00313.07
7.3.320.0000.00513.06
7.3.310.0000.00715.96
7.3.300.0000.00716.13
7.3.290.0130.00416.10
7.3.280.0100.00716.14
7.3.270.0110.00817.40
7.3.260.0070.01016.19
7.3.250.0080.00916.21
7.3.240.0040.01116.18
7.3.230.0180.00016.39
7.3.210.0170.00616.16
7.3.200.0040.01919.39
7.3.190.0100.00716.11
7.3.180.0030.01216.37
7.3.170.0090.01116.27
7.3.160.0110.01316.39
7.2.330.0060.01216.29
7.2.320.0030.01516.30
7.2.310.0100.00716.29
7.2.300.0100.00716.26
7.2.290.0120.00616.38
7.2.00.0000.01119.13
7.1.100.0000.01017.89
7.1.70.0030.01717.21
7.1.60.0040.01820.03
7.1.50.0070.01016.48
7.1.00.0100.07022.27
7.0.200.0410.00414.97
7.0.60.0200.07019.90
7.0.50.0030.05317.80
7.0.40.0130.05019.96
7.0.30.0330.05020.13
7.0.20.0130.05020.02
7.0.10.0230.05320.17
7.0.00.0030.04320.08
5.6.280.0070.05721.11
5.6.210.0170.08020.69
5.6.200.0200.07718.12
5.6.190.0130.07720.49
5.6.180.0200.06720.45
5.6.170.0200.04720.44
5.6.160.0070.08020.50
5.6.150.0100.08018.13
5.6.140.0070.05318.12
5.6.130.0130.07718.20
5.6.120.0070.07021.04
5.6.110.0200.07020.95
5.6.100.0030.05720.96
5.6.90.0170.07321.11
5.6.80.0200.06020.40
5.6.70.3970.03720.36
5.5.350.0030.08320.39
5.5.340.0070.07317.92
5.5.330.0100.04720.36
5.5.320.0300.05320.51
5.5.310.0270.07720.12
5.5.300.0030.05318.02
5.5.290.0070.08018.01
5.5.280.0100.08020.82
5.5.270.0030.04320.79
5.5.260.0100.07720.87
5.5.250.0130.07320.47
5.5.240.0070.08020.22
5.4.450.0770.06719.14
5.4.440.0770.05319.46
5.4.430.0830.05019.54
5.4.420.0830.04719.24
5.4.410.0770.06719.00
5.4.400.0900.06318.81
5.4.390.0770.05319.31
5.4.380.0770.05718.81
5.4.370.1070.06719.09
5.4.360.0900.08318.91
5.4.350.0700.06019.08
5.4.340.1030.07318.78
5.4.320.0630.06018.80
5.4.310.0270.05319.16
5.4.300.0100.08719.34
5.4.290.0600.05019.08
5.4.280.0870.07719.21
5.4.270.0700.06318.81
5.4.260.0700.06719.14
5.4.250.1030.08718.76
5.4.240.0770.04719.29
5.4.230.0930.07319.30
5.4.220.1130.06318.80
5.4.210.0900.05019.10
5.4.200.0770.05316.75
5.4.190.1270.08718.86
5.4.180.1100.07018.81
5.4.170.0870.06318.96
5.4.160.0730.05719.09
5.4.150.0200.04019.27
5.4.140.0170.04716.38
5.4.130.0470.04716.43
5.4.120.0800.06016.32
5.4.110.0930.04316.46
5.4.100.0830.04016.26
5.4.90.0930.05316.31
5.4.80.0430.06716.45
5.4.70.0930.04716.23
5.4.60.0000.03316.40
5.4.50.0030.07016.36
5.4.40.0030.05016.41
5.4.30.0130.03716.37
5.4.20.0430.05716.38

preferences:
57.05 ms | 400 KiB | 5 Q