3v4l.org

run code in 300+ PHP versions simultaneously
<?php define('DEFINED_AS_TRUE', true); define('DEFINED_AS_FALSE', false); echo 'Case A when not defined: '; if ((!THIS_IS_NOT_DEFINED) || !defined('THIS_IS_NOT_DEFINED')) { echo 'if is true'; } else { echo 'if is false'; } echo "\n\n"; echo 'Case B when not defined: '; if ((!defined('THIS_IS_NOT_DEFINED')) || (!THIS_IS_NOT_DEFINED)) { echo 'if is true'; } else { echo 'if is false'; } echo "\n\n"; echo 'Case A when defined as true: '; if ((!DEFINED_AS_TRUE) || !defined('DEFINED_AS_TRUE')) { echo 'if is true'; } else { echo 'if is false'; } echo "\n\n"; echo 'Case B when defined as true: '; if ((!defined('DEFINED_AS_TRUE')) || (!DEFINED_AS_TRUE)) { echo 'if is true'; } else { echo 'if is false'; } echo "\n\n"; echo 'Case A when defined as false: '; if ((!DEFINED_AS_FALSE) || !defined('DEFINED_AS_FALSE')) { echo 'if is true'; } else { echo 'if is false'; } echo "\n\n"; echo 'Case B when defined as false: '; if ((!defined('DEFINED_AS_FALSE')) || (!DEFINED_AS_FALSE)) { echo 'if is true'; } else { echo 'if is false'; }

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)
8.3.70.0110.00416.63
8.3.60.0070.00718.40
8.3.50.0110.00922.11
8.3.40.0180.00018.71
8.3.30.0070.00720.25
8.3.20.0000.00820.34
8.3.10.0050.00321.89
8.3.00.0070.00022.58
8.2.180.0150.00716.88
8.2.170.0070.01022.96
8.2.160.0070.00722.30
8.2.150.0000.00824.18
8.2.140.0000.00824.66
8.2.130.0040.00426.16
8.2.120.0100.01019.38
8.2.110.0030.00620.27
8.2.100.0060.00619.52
8.2.90.0040.00418.22
8.2.80.0020.00519.41
8.2.70.0040.00417.34
8.2.60.0080.00417.93
8.2.50.0000.00818.07
8.2.40.0050.00319.72
8.2.30.0040.00419.44
8.2.20.0040.00417.61
8.2.10.0030.00617.75
8.2.00.0000.00817.80
8.1.280.0090.00625.92
8.1.270.0080.00023.99
8.1.260.0030.00626.35
8.1.250.0070.00028.09
8.1.240.0040.00422.20
8.1.230.0110.00022.78
8.1.220.0040.00417.75
8.1.210.0000.00918.96
8.1.200.0030.00617.23
8.1.190.0060.00317.41
8.1.180.0050.00319.13
8.1.170.0060.00318.66
8.1.160.0110.00018.82
8.1.150.0000.00718.59
8.1.140.0020.00517.31
8.1.130.0000.00717.82
8.1.120.0030.00517.46
8.1.110.0080.00017.46
8.1.100.0070.00017.31
8.1.90.0040.00417.31
8.1.80.0050.00217.42
8.1.70.0000.00717.28
8.1.60.0040.00417.50
8.1.50.0070.00017.50
8.1.40.0040.00417.47
8.1.30.0040.00417.57
8.1.20.0040.00417.49
8.1.10.0040.00417.48
8.1.00.0030.00617.53
8.0.300.0000.00820.09
8.0.290.0070.00017.18
8.0.280.0040.00418.45
8.0.270.0070.00017.33
8.0.260.0070.00016.93
8.0.250.0000.00717.02
8.0.240.0060.00317.00
8.0.230.0040.00416.98
8.0.220.0030.00416.89
8.0.210.0000.00716.93
8.0.200.0050.00317.06
8.0.190.0080.00017.05
8.0.180.0000.00716.94
8.0.170.0000.00817.04
8.0.160.0000.00716.91
8.0.150.0030.00316.92
8.0.140.0000.00716.83
8.0.130.0000.00513.35
8.0.120.0040.00416.94
8.0.110.0000.00716.79
8.0.100.0000.00816.89
8.0.90.0070.00016.88
8.0.80.0090.00616.95
8.0.70.0080.00016.85
8.0.60.0040.00416.87
8.0.50.0000.00716.87
8.0.30.0050.01817.07
8.0.20.0070.01117.40
8.0.10.0070.00016.87
8.0.00.0130.01216.79
7.4.330.0050.00015.00
7.4.320.0030.00316.60
7.4.300.0000.00716.64
7.4.290.0080.00016.51
7.4.280.0070.00016.50
7.4.270.0080.00016.60
7.4.260.0030.00313.17
7.4.250.0050.00316.44
7.4.240.0030.00516.37
7.4.230.0030.00316.36
7.4.220.0090.00916.55
7.4.210.0050.01116.56
7.4.200.0070.00016.36
7.4.190.0000.00716.52
7.4.160.0040.01216.58
7.4.150.0090.00917.40
7.4.140.0080.01117.86
7.4.130.0020.01516.56
7.4.120.0060.01116.51
7.4.110.0070.01016.73
7.4.100.0080.00816.45
7.4.90.0100.01616.44
7.4.80.0180.00419.39
7.4.70.0000.01616.29
7.4.60.0120.00816.34
7.4.50.0040.00416.45
7.4.40.0100.00722.77
7.4.30.0250.00316.55
7.4.00.0110.00415.17
7.3.330.0050.00013.10
7.3.320.0000.00712.96
7.3.310.0030.00316.08
7.3.300.0000.00716.21
7.3.290.0100.01016.26
7.3.280.0050.01116.22
7.3.270.0100.00717.40
7.3.260.0170.00716.43
7.3.250.0170.00416.36
7.3.240.0100.01016.12
7.3.230.0110.00616.45
7.3.210.0100.00716.32
7.3.200.0060.01819.39
7.3.190.0110.01116.43
7.3.180.0220.00716.44
7.3.170.0130.00416.63
7.3.160.0090.01216.39
7.3.120.0000.01414.99
7.2.330.0090.00916.75
7.2.320.0110.01416.38
7.2.310.0110.00716.50
7.2.300.0090.01216.50
7.2.290.0030.01516.49
7.2.60.0030.00916.91
7.1.200.0040.00815.85
7.1.70.0000.00717.16
7.1.60.0100.01019.32
7.1.50.0030.01916.87
7.1.00.0030.05022.43
7.0.200.0050.00516.83
7.0.140.0000.07722.20
7.0.110.0100.07719.97
7.0.100.0130.04320.03
7.0.90.0030.08319.96
7.0.80.0100.08019.93
7.0.70.0130.07319.96
7.0.60.0100.06320.04
7.0.50.0130.07320.18
7.0.40.0200.07020.06
7.0.30.0030.08320.19
7.0.20.0000.09720.25
7.0.10.0100.04720.16
7.0.00.0130.04320.07
5.6.280.0000.07721.03
5.6.260.0000.05720.61
5.6.250.0070.07720.69
5.6.240.0100.03720.86
5.6.230.0030.08020.69
5.6.220.0070.08020.54
5.6.210.0100.08320.72
5.6.200.0170.07721.29
5.6.190.0070.07321.13
5.6.180.0000.08320.99
5.6.170.0100.05021.14
5.6.160.0170.07021.14
5.6.150.0070.08721.15
5.6.140.0130.07321.14
5.6.130.0000.08320.98
5.6.120.0070.09020.93
5.6.110.0100.08321.14
5.6.100.0030.08721.21
5.6.90.0170.07320.93
5.6.80.0000.08720.61
5.6.70.0030.08320.43
5.6.60.0030.08320.64
5.6.50.0070.07320.37
5.6.40.0200.06720.32
5.6.30.0070.06020.29
5.6.20.0070.07720.26
5.6.10.0130.05720.45
5.6.00.0070.08020.24
5.5.380.0000.07320.33
5.5.370.0170.07020.59
5.5.360.0000.08720.56
5.5.350.0100.07320.41
5.5.340.0030.06721.00
5.5.330.0100.08021.02
5.5.320.0030.06321.05
5.5.310.0100.03720.87
5.5.300.0130.08020.98
5.5.290.0130.08321.04
5.5.280.0070.04720.89
5.5.270.0200.03020.74
5.5.260.0070.05320.90
5.5.250.0030.04320.73
5.5.240.0030.08020.17
5.5.230.0130.07020.37
5.5.220.0100.07320.20
5.5.210.0070.05320.23
5.5.200.0200.06720.26
5.5.190.0070.08320.13
5.5.180.0070.03720.31
5.5.160.0100.07720.17
5.5.150.0100.07720.30
5.5.140.0100.06720.16
5.5.130.0000.07720.39
5.5.120.0130.06320.24
5.5.110.0070.04020.32
5.5.100.0030.04020.09
5.5.90.0100.04320.25
5.5.80.0030.04020.25
5.5.70.0100.03320.08
5.5.60.0030.03720.04
5.5.50.0000.04320.00
5.5.40.0000.05020.04
5.5.30.0070.03719.98
5.5.20.0070.03720.23
5.5.10.0070.04720.13
5.5.00.0100.03320.05
5.4.450.0100.08319.35
5.4.440.0070.07019.27
5.4.430.0130.07719.43
5.4.420.0130.07319.59
5.4.410.0070.07019.47
5.4.400.0070.07719.02
5.4.390.0130.06018.97
5.4.380.0030.07719.02
5.4.370.0170.06719.18
5.4.360.0070.07019.12
5.4.350.0170.03319.08
5.4.340.0100.05319.01
5.4.320.0070.07019.17
5.4.310.0070.07319.07
5.4.300.0100.07319.27
5.4.290.0170.07019.17
5.4.280.0070.07019.16
5.4.270.0030.05718.96
5.4.260.0070.06719.00
5.4.250.0000.04019.17
5.4.240.0030.07018.98
5.4.230.0070.03319.16
5.4.220.0000.04319.00
5.4.210.0030.03719.00
5.4.200.0100.03019.01
5.4.190.0000.04018.98
5.4.180.0170.03718.98
5.4.170.0000.04018.92
5.4.160.0030.04018.96
5.4.150.0000.05019.00
5.4.140.0030.05016.45
5.4.130.0070.03316.56
5.4.120.0030.04716.22
5.4.110.0030.03716.38
5.4.100.0030.03716.29
5.4.90.0100.03016.53
5.4.80.0000.04016.21
5.4.70.0000.03716.39
5.4.60.0100.02716.50
5.4.50.0030.03316.05
5.4.40.0070.03316.57
5.4.30.0070.03316.15
5.4.20.0170.02016.15
5.4.10.0070.06016.50
5.4.00.0030.03715.93
5.3.290.0100.03014.83
5.3.280.0030.03714.83
5.3.270.0070.06714.83
5.3.260.0030.05714.83
5.3.250.0070.03314.83
5.3.240.0000.04014.83
5.3.230.0070.03314.83
5.3.220.0070.04014.83
5.3.210.0030.03714.83
5.3.200.0070.03314.83
5.3.190.0070.03314.83
5.3.180.0070.03314.83
5.3.170.0000.04714.83
5.3.160.0000.04314.83
5.3.150.0070.05314.83
5.3.140.0000.03714.83
5.3.130.0030.03714.83
5.3.120.0030.06714.83
5.3.110.0030.05714.83
5.3.100.0000.04014.83
5.3.90.0000.05014.83
5.3.80.0070.05314.83
5.3.70.0030.03314.83
5.3.60.0070.05714.83
5.3.50.0030.04014.83
5.3.40.0100.03014.83
5.3.30.0030.04314.83
5.3.20.0170.02314.83
5.3.10.0000.03714.83
5.3.00.0000.05314.83
5.2.170.0030.02714.83
5.2.160.0000.03014.83
5.2.150.0030.02714.83
5.2.140.0100.02314.83
5.2.130.0070.04314.83
5.2.120.0000.03014.83
5.2.110.0000.03314.83
5.2.100.0000.03014.83
5.2.90.0100.03014.83
5.2.80.0000.04014.83
5.2.70.0070.03314.83
5.2.60.0030.03714.83
5.2.50.0070.05714.83
5.2.40.0030.06014.83
5.2.30.0030.03714.83
5.2.20.0130.05314.83
5.2.10.0070.05314.83
5.2.00.0070.03714.83
5.1.60.0070.04314.83
5.1.50.0000.04714.83
5.1.40.0030.04714.83
5.1.30.0070.05014.83
5.1.20.0000.03714.83
5.1.10.0070.03014.83
5.1.00.0100.05014.83
5.0.50.0070.04314.83
5.0.40.0030.03014.83
5.0.30.0130.04714.83
5.0.20.0000.03714.83
5.0.10.0030.03014.83
5.0.00.0000.03714.83
4.4.90.0000.01714.83
4.4.80.0030.02714.83
4.4.70.0030.01714.83
4.4.60.0000.03714.83
4.4.50.0030.03714.83
4.4.40.0000.03714.83
4.4.30.0070.03314.83
4.4.20.0000.03714.83
4.4.10.0030.03314.83
4.4.00.0070.04714.83
4.3.110.0030.03014.83
4.3.100.0030.03714.83
4.3.90.0070.03314.83
4.3.80.0100.04314.83
4.3.70.0000.02314.83
4.3.60.0030.03314.83
4.3.50.0070.03314.83
4.3.40.0000.05014.83
4.3.30.0000.02314.83
4.3.20.0000.01714.83
4.3.10.0000.04014.83
4.3.00.0030.03014.83

preferences:
74.89 ms | 401 KiB | 5 Q