3v4l.org

run code in 300+ PHP versions simultaneously
if(isset(NULL)) { echo "true\n"; } else { echo "false\n"; }<?php

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)
8.3.40.0120.00318.43
8.3.30.0140.00019.02
8.3.20.0050.00320.17
8.3.10.0050.00323.66
8.3.00.0040.00421.02
8.2.170.0070.01022.96
8.2.160.0070.00720.33
8.2.150.0030.00524.18
8.2.140.0040.00424.66
8.2.130.0050.00226.16
8.2.120.0000.00820.86
8.2.110.0030.00621.97
8.2.100.0040.00817.78
8.2.90.0040.00719.09
8.2.80.0000.00817.97
8.2.70.0030.00617.50
8.2.60.0030.00617.91
8.2.50.0000.00818.07
8.2.40.0000.00919.88
8.2.30.0000.00718.10
8.2.20.0070.00017.58
8.2.10.0000.00717.97
8.2.00.0040.00417.60
8.1.270.0060.00323.82
8.1.260.0050.00326.35
8.1.250.0000.00728.09
8.1.240.0060.00323.84
8.1.230.0070.00419.15
8.1.220.0040.00417.74
8.1.210.0000.00818.77
8.1.200.0060.00316.99
8.1.190.0000.00817.10
8.1.180.0040.00418.10
8.1.170.0040.00418.50
8.1.160.0000.00821.93
8.1.150.0040.00418.50
8.1.140.0070.00017.18
8.1.130.0000.00717.86
8.1.120.0030.00317.22
8.1.110.0040.00417.30
8.1.100.0000.00717.36
8.1.90.0070.00017.30
8.1.80.0040.00417.30
8.1.70.0040.00417.27
8.1.60.0040.00417.34
8.1.50.0040.00417.40
8.1.40.0040.00417.38
8.1.30.0040.00417.51
8.1.20.0000.00717.39
8.1.10.0000.00717.44
8.1.00.0050.00217.25
8.0.300.0070.00018.77
8.0.290.0080.00016.75
8.0.280.0030.00318.36
8.0.270.0030.00317.14
8.0.260.0030.00317.09
8.0.250.0070.00016.73
8.0.240.0080.00016.86
8.0.230.0030.00316.79
8.0.220.0030.00316.74
8.0.210.0040.00416.79
8.0.200.0030.00316.70
8.0.190.0030.00516.72
8.0.180.0000.00716.84
8.0.170.0070.00016.79
8.0.160.0050.00316.69
8.0.150.0060.00316.57
8.0.140.0000.00816.70
8.0.130.0000.00613.21
8.0.120.0000.00816.59
8.0.110.0000.00716.75
8.0.100.0070.00016.80
8.0.90.0040.00416.75
8.0.80.0120.00916.74
8.0.70.0050.00216.79
8.0.60.0070.00016.79
8.0.50.0000.00716.64
8.0.30.0100.01216.94
8.0.20.0100.00917.40
8.0.10.0070.00016.93
8.0.00.0100.00716.56
7.4.330.0030.00315.00
7.4.320.0030.00316.50
7.4.300.0030.00316.38
7.4.290.0000.00716.27
7.4.280.0000.00716.35
7.4.270.0030.00316.38
7.4.260.0030.00316.49
7.4.250.0000.00716.39
7.4.240.0030.00416.37
7.4.230.0030.00316.25
7.4.220.0090.00916.35
7.4.210.0030.01616.35
7.4.200.0000.00716.45
7.4.160.0120.00316.45
7.4.150.0130.00617.40
7.4.140.0090.01117.86
7.4.130.0080.00816.48
7.4.120.0070.00916.34
7.4.110.0030.01316.56
7.4.100.0140.01016.42
7.4.90.0090.00916.41
7.4.80.0140.00619.39
7.4.70.0130.00316.29
7.4.60.0110.00816.38
7.4.50.0000.00416.14
7.4.40.0110.00516.38
7.4.30.0020.01116.37
7.3.330.0030.00312.92
7.3.320.0050.00013.10
7.3.310.0000.00616.17
7.3.300.0030.00316.16
7.3.290.0090.00916.14
7.3.280.0080.00916.14
7.3.270.0090.00917.40
7.3.260.0110.00416.46
7.3.250.0060.01116.36
7.3.240.0130.00916.51
7.3.230.0140.00316.41
7.3.210.0100.00916.45
7.3.200.0090.00619.39
7.3.190.0100.01316.43
7.3.180.0060.00916.13
7.3.170.0060.01216.27
7.3.160.0140.00616.18
7.2.330.0100.01016.22
7.2.320.0150.00316.48
7.2.310.0070.01316.40
7.2.300.0080.00816.35
7.2.290.0110.00516.11
5.5.50.0170.07320.00
5.5.40.0070.08320.05
5.5.30.0100.08020.02
5.5.20.0070.07720.03
5.5.10.0170.07020.11
5.5.00.0070.07319.96
5.4.210.0030.08319.13
5.4.200.0130.06318.94
5.4.190.0030.08019.15
5.4.180.0130.06719.01
5.4.170.0100.07718.94
5.4.160.0030.08319.01
5.4.150.0100.07318.93
5.4.140.0030.07016.34
5.4.130.0030.03716.41
5.4.120.0170.05716.28
5.4.110.0070.07316.38
5.4.100.0070.07016.31
5.4.90.0130.06716.34
5.4.80.0030.05316.43
5.4.70.0130.04716.43
5.4.60.0230.05316.43
5.4.50.0070.07016.28
5.4.40.0170.06716.33
5.4.30.0000.08316.18
5.4.20.0070.07716.34
5.4.10.0100.06716.27
5.4.00.0030.07015.71
5.3.290.0130.07314.62
5.3.280.0070.08014.58
5.3.270.0000.05314.46
5.3.260.0100.07314.57
5.3.250.0100.07714.45
5.3.240.0100.04714.56
5.3.230.0000.08014.41
5.3.220.0070.08014.38
5.3.210.0000.07714.57
5.3.200.0170.06314.41
5.3.190.0130.07014.54
5.3.180.0100.07314.41
5.3.170.0130.04714.55
5.3.160.0100.07314.57
5.3.150.0070.07014.54
5.3.140.0100.07014.54
5.3.130.0030.08014.49
5.3.120.0100.07714.49
5.3.110.0130.06714.36
5.3.100.0100.06314.02
5.3.90.0070.03313.86
5.3.80.0000.04313.99
5.3.70.0000.05714.01
5.3.60.0000.04013.91
5.3.50.0130.06313.79
5.3.40.0030.03713.72
5.3.30.0030.03313.88
5.3.20.0030.04313.54
5.3.10.0070.05013.43
5.3.00.0070.03013.49
5.2.170.0030.02712.12
5.2.160.0000.04012.12
5.2.150.0070.02312.12
5.2.140.0070.04312.12
5.2.130.0000.03312.12
5.2.120.0000.04312.12
5.2.110.0000.03012.12
5.2.100.0000.03012.12
5.2.90.0000.03012.12
5.2.80.0030.03012.12
5.2.70.0030.02712.12
5.2.60.0030.02712.12
5.2.50.0100.04312.12
5.2.40.0000.03312.12
5.2.30.0000.03012.12
5.2.20.0000.05312.12
5.2.10.0000.03012.12
5.2.00.0030.03312.12
5.1.60.0030.02312.12
5.1.50.0030.03012.12
5.1.40.0000.02312.12
5.1.30.0000.02712.12
5.1.20.0000.02712.12
5.1.10.0000.02712.12
5.1.00.0030.02312.12
5.0.50.0000.03712.12
5.0.40.0030.01712.12
5.0.30.0030.03312.12
5.0.20.0000.02012.12
5.0.10.0000.02012.12
5.0.00.0000.03312.12
4.4.90.0030.01712.12
4.4.80.0030.02012.12
4.4.70.0070.01312.12
4.4.60.0000.01312.12
4.4.50.0000.01712.12
4.4.40.0030.02312.12
4.4.30.0000.01712.12
4.4.20.0000.01712.12
4.4.10.0000.01712.12
4.4.00.0030.02312.12
4.3.110.0030.01312.12
4.3.100.0000.01712.12
4.3.90.0070.01012.12
4.3.80.0030.03012.12
4.3.70.0000.03012.12
4.3.60.0000.01312.12
4.3.50.0000.01712.12
4.3.40.0030.02012.12
4.3.30.0030.02012.12
4.3.20.0000.01712.12
4.3.10.0000.02312.12
4.3.00.0030.01312.12

preferences:
44.62 ms | 400 KiB | 5 Q