3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = "72"; if(isset($a[null])) echo "YES"; else echo "NO";

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)
8.3.60.0040.01116.50
8.3.50.0080.00717.22
8.3.40.0120.00318.58
8.3.30.0070.00718.67
8.3.20.0040.00418.52
8.3.10.0000.00820.52
8.3.00.0040.00417.50
8.2.180.0070.01116.75
8.2.170.0140.00022.96
8.2.160.0130.00020.23
8.2.150.0030.00524.18
8.2.140.0040.00424.66
8.2.130.0040.00426.16
8.2.120.0080.00019.77
8.2.110.0030.00620.96
8.2.100.0130.00018.03
8.2.90.0000.00719.36
8.2.80.0040.00417.97
8.2.70.0030.00517.63
8.2.60.0060.00317.93
8.2.50.0080.00018.07
8.2.40.0040.00418.03
8.2.30.0040.00418.05
8.2.20.0040.00417.61
8.2.10.0030.00619.30
8.2.00.0040.00417.63
8.1.280.0110.00725.92
8.1.270.0030.00624.66
8.1.260.0070.00026.35
8.1.250.0000.00828.09
8.1.240.0040.00422.42
8.1.230.0130.00021.03
8.1.220.0080.00018.77
8.1.210.0040.00418.77
8.1.200.0060.00317.22
8.1.190.0030.00617.54
8.1.180.0030.00618.10
8.1.170.0050.00318.84
8.1.160.0050.00218.86
8.1.150.0000.00818.47
8.1.140.0050.00317.31
8.1.130.0030.00317.72
8.1.120.0030.00317.26
8.1.110.0040.00417.33
8.1.100.0000.00817.35
8.1.90.0040.00417.30
8.1.80.0070.00017.27
8.1.70.0040.00417.27
8.1.60.0060.00317.51
8.1.50.0070.00017.38
8.1.40.0040.00417.43
8.1.30.0040.00417.56
8.1.20.0000.00917.41
8.1.10.0020.00517.47
8.1.00.0040.00417.51
8.0.300.0080.00020.02
8.0.290.0080.00016.75
8.0.280.0040.00418.43
8.0.270.0070.00017.25
8.0.260.0030.00316.80
8.0.250.0000.00816.75
8.0.240.0060.00316.84
8.0.230.0030.00316.91
8.0.220.0070.00016.70
8.0.210.0070.00016.75
8.0.200.0040.00416.94
8.0.190.0000.00916.79
8.0.180.0000.00716.71
8.0.170.0040.00416.84
8.0.160.0000.00816.90
8.0.150.0030.00616.80
8.0.140.0060.00316.77
8.0.130.0050.00013.31
8.0.120.0000.00816.75
8.0.110.0040.00416.91
8.0.100.0040.00416.70
8.0.90.0040.00416.80
8.0.80.0100.01016.87
8.0.70.0000.00716.82
8.0.60.0040.00416.70
8.0.50.0050.00316.76
8.0.30.0110.00716.96
8.0.20.0080.01117.04
8.0.10.0040.00416.93
8.0.00.0070.01116.63
7.4.330.0000.00513.04
7.4.320.0030.00316.32
7.4.300.0060.00016.50
7.4.290.0000.00716.48
7.4.280.0000.00916.55
7.4.270.0000.00716.52
7.4.260.0000.00613.16
7.4.250.0090.00016.42
7.4.240.0030.00316.44
7.4.230.0050.00316.55
7.4.220.0130.00316.56
7.4.210.0080.00716.46
7.4.200.0030.00316.31
7.4.190.0030.00316.68
7.4.160.0100.00616.41
7.4.150.0090.00916.47
7.4.140.0060.01216.30
7.4.130.0090.00816.38
7.4.120.0090.00916.53
7.4.110.0110.00616.48
7.4.100.0030.01416.36
7.4.90.0060.01716.44
7.4.80.0100.00616.34
7.4.70.0130.00516.21
7.4.60.0070.01016.39
7.4.50.0030.00616.38
7.4.40.0110.00016.31
7.4.30.0130.00316.39
7.4.00.0070.00715.04
7.3.330.0060.00013.13
7.3.320.0000.00513.15
7.3.310.0000.00716.06
7.3.300.0030.00316.23
7.3.290.0000.01316.18
7.3.280.0080.00816.27
7.3.270.0130.01016.15
7.3.260.0080.00816.45
7.3.250.0070.01216.24
7.3.240.0100.00716.30
7.3.230.0090.00916.31
7.3.210.0130.01016.10
7.3.200.0090.01219.39
7.3.190.0100.01316.42
7.3.180.0070.01416.17
7.3.170.0130.00316.27
7.3.160.0120.00416.38
7.3.120.0000.01814.67
7.2.330.0070.01116.69
7.2.320.0100.01316.60
7.2.310.0070.01116.47
7.2.300.0070.01016.56
7.2.290.0070.01016.41
7.1.70.0040.00416.79
7.1.60.0070.01719.40
7.1.50.0090.01216.58
7.1.00.0100.06022.40
7.0.200.0000.00816.57
7.0.140.0070.07022.15
7.0.120.0030.07722.04
7.0.60.0070.06719.86
7.0.50.0130.04717.79
7.0.40.0130.08020.27
7.0.30.0230.07320.09
7.0.20.0300.05720.09
7.0.10.0000.05320.18
7.0.00.0100.06720.16
5.6.280.0030.07020.79
5.6.210.0030.08720.50
5.6.200.0030.08318.11
5.6.190.0070.06020.60
5.6.180.0300.04720.35
5.6.170.0230.08020.47
5.6.160.0000.06020.61
5.6.150.0000.04318.21
5.6.140.0070.05718.07
5.6.130.0070.08318.11
5.6.120.0100.08321.01
5.6.110.0030.04320.96
5.6.100.0100.05721.03
5.6.90.0030.07020.98
5.6.80.0070.07020.46
5.5.350.0330.08320.52
5.5.340.0100.07317.92
5.5.330.0000.04320.19
5.5.320.0270.04720.17
5.5.310.0230.05320.30
5.5.300.0000.07318.01
5.5.290.0070.03717.91
5.5.280.0130.06720.76
5.5.270.0030.04320.88
5.5.260.0030.08720.79
5.5.250.0030.05720.61
5.5.240.0000.07720.27
5.4.450.0270.07319.25
5.4.440.0300.07319.41
5.4.430.0300.04719.54
5.4.420.0270.04719.41
5.4.410.0370.04019.44
5.4.400.0330.06019.10
5.4.390.0270.07718.79
5.4.380.0270.05018.89
5.4.370.0270.04719.06
5.4.360.0270.05019.09
5.4.350.0270.04718.95
5.4.340.0270.08018.88
5.4.320.0330.07019.13
5.4.310.0270.07718.79
5.4.300.0300.06719.13
5.4.290.0270.04319.21
5.4.280.0430.06019.07
5.4.270.0370.06319.13
5.4.260.0230.04019.06
5.4.250.0330.05019.23
5.4.240.0300.07019.09
5.4.230.0370.07019.21
5.4.220.0230.05018.88
5.4.210.0230.04019.13
5.4.200.0230.03719.13
5.4.190.0300.04319.09
5.4.180.0270.07019.21
5.4.170.0200.03718.91
5.4.160.0230.04319.06
5.4.150.0270.05019.04
5.4.140.0300.05016.31
5.4.130.0270.06316.32
5.4.120.0200.04016.44
5.4.110.0270.04716.22
5.4.100.0230.03716.39
5.4.90.0230.03316.22
5.4.80.0430.05716.20
5.4.70.0300.05716.21
5.4.60.0370.03716.17
5.4.50.0330.06716.45
5.4.40.0330.05316.18
5.4.30.0230.04016.36
5.4.20.0230.03316.37
5.4.10.0200.03316.20
5.4.00.0200.03315.61
5.3.290.0270.06714.61
5.3.280.0330.06714.43
5.3.270.0170.05014.69
5.3.260.0270.07714.55
5.3.250.0300.06714.55
5.3.240.0270.06714.55
5.3.230.0300.03714.66
5.3.220.0300.04314.61
5.3.210.0300.04714.40
5.3.200.0270.03714.65
5.3.190.0300.07014.40
5.3.180.0300.06714.39
5.3.170.0300.04014.64
5.3.160.0270.05014.39
5.3.150.0370.06014.50
5.3.140.0200.04014.48
5.3.130.0170.04014.49
5.3.120.0170.05014.40
5.3.110.0170.04314.40
5.3.100.0230.03013.98
5.3.90.0230.03713.86
5.3.80.0200.03314.00
5.3.70.0230.03713.79
5.3.60.0230.03013.88
5.3.50.0200.04013.92
5.3.40.0200.03313.79
5.3.30.0200.03714.00
5.3.20.0200.04013.46
5.3.10.0130.04013.63
5.3.00.0130.04013.59
5.2.170.0170.03011.82
5.2.160.0170.02711.82
5.2.150.0170.02711.82
5.2.140.0130.04011.82
5.2.130.0200.02711.82
5.2.120.0230.02311.82
5.2.110.0170.02711.82
5.2.100.0200.02311.82
5.2.90.0100.03311.82
5.2.80.0100.04311.82
5.2.70.0230.02311.82
5.2.60.0130.03011.82
5.2.50.0070.03711.82
5.2.40.0100.03311.82
5.2.30.0130.03011.82
5.2.20.0130.02711.82
5.2.10.0100.03311.82
5.2.00.0070.03011.82
5.1.60.0130.02011.82
5.1.50.0130.02311.82
5.1.40.0170.02011.82
5.1.30.0100.02711.82
5.1.20.0070.03011.82
5.1.10.0070.03011.82
5.1.00.0100.02711.82
5.0.50.0070.02011.82
5.0.40.0100.01711.82
5.0.30.0070.03011.82
5.0.20.0070.02011.82
5.0.10.0100.02011.82
5.0.00.0070.03011.82
4.4.90.0070.01311.82
4.4.80.0030.01711.82
4.4.70.0070.01711.82
4.4.60.0000.02011.82
4.4.50.0030.01711.82
4.4.40.0070.02311.82
4.4.30.0130.01011.82
4.4.20.0030.02011.82
4.4.10.0100.01011.82
4.4.00.0030.02711.82
4.3.110.0070.01311.82
4.3.100.0030.01711.82
4.3.90.0070.01711.82
4.3.80.0030.02311.82
4.3.70.0070.01711.82
4.3.60.0070.01311.82
4.3.50.0030.02011.82
4.3.40.0100.02011.82
4.3.30.0030.02011.82
4.3.20.0030.01311.82
4.3.10.0070.02311.82
4.3.00.0030.02311.82

preferences:
46.28 ms | 400 KiB | 5 Q