3v4l.org

run code in 300+ PHP versions simultaneously
<?php $exists = isset($a); echo $exists && 13;

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)
8.3.60.0150.00618.56
8.3.50.0100.00721.95
8.3.40.0040.01118.44
8.3.30.0040.01119.10
8.3.20.0000.00720.22
8.3.10.0050.00320.52
8.3.00.0030.00717.36
8.2.180.0090.01216.50
8.2.170.0150.00022.96
8.2.160.0070.00720.53
8.2.150.0080.00024.18
8.2.140.0060.00324.66
8.2.130.0050.00226.16
8.2.120.0070.00022.17
8.2.110.0000.01221.08
8.2.100.0090.00318.16
8.2.90.0000.00819.26
8.2.80.0030.00617.97
8.2.70.0000.00817.63
8.2.60.0060.00317.93
8.2.50.0040.00418.07
8.2.40.0000.00818.19
8.2.30.0030.00519.36
8.2.20.0000.00717.55
8.2.10.0070.00018.04
8.2.00.0000.00817.54
8.1.280.0040.01425.92
8.1.270.0070.00024.02
8.1.260.0040.00426.35
8.1.250.0070.00728.09
8.1.240.0090.00021.36
8.1.230.0090.00319.49
8.1.220.0060.00317.74
8.1.210.0050.00318.77
8.1.200.0030.00617.23
8.1.190.0050.00217.35
8.1.180.0070.00018.10
8.1.170.0080.00018.64
8.1.160.0040.00422.00
8.1.150.0000.00718.88
8.1.140.0050.00317.39
8.1.130.0040.00417.84
8.1.120.0000.00717.47
8.1.110.0040.00317.36
8.1.100.0070.00017.46
8.1.90.0000.00717.42
8.1.80.0000.00717.32
8.1.70.0030.00317.32
8.1.60.0030.00617.47
8.1.50.0040.00417.52
8.1.40.0040.00417.50
8.1.30.0050.00317.52
8.1.20.0070.00017.63
8.1.10.0000.00817.45
8.1.00.0000.00717.32
8.0.300.0070.00018.77
8.0.290.0050.00316.63
8.0.280.0030.00318.41
8.0.270.0070.00017.25
8.0.260.0030.00317.29
8.0.250.0070.00016.91
8.0.240.0030.00616.88
8.0.230.0020.00516.84
8.0.220.0030.00316.74
8.0.210.0040.00416.82
8.0.200.0000.00816.89
8.0.190.0040.00717.00
8.0.180.0030.00416.96
8.0.170.0040.00416.82
8.0.160.0070.00016.76
8.0.150.0000.00816.82
8.0.140.0040.00416.85
8.0.130.0030.00313.27
8.0.120.0050.00316.81
8.0.110.0030.00516.70
8.0.100.0040.00416.69
8.0.90.0040.00416.91
8.0.80.0080.00716.85
8.0.70.0000.00716.88
8.0.60.0030.00516.90
8.0.50.0050.00216.87
8.0.30.0100.01217.01
8.0.20.0090.01017.40
8.0.10.0040.00416.89
8.0.00.0140.00416.99
7.4.330.0020.00215.00
7.4.320.0060.00016.57
7.4.300.0030.00316.58
7.4.290.0030.00316.59
7.4.280.0040.00416.43
7.4.270.0070.00016.56
7.4.260.0030.00316.47
7.4.250.0040.00416.37
7.4.240.0020.00616.58
7.4.230.0040.00416.53
7.4.220.0070.01216.52
7.4.210.0030.01616.54
7.4.200.0070.00016.38
7.4.160.0030.01416.49
7.4.150.0150.00317.40
7.4.140.0120.01017.86
7.4.130.0070.01016.53
7.4.120.0110.00616.67
7.4.110.0100.00716.43
7.4.100.0070.01016.41
7.4.90.0100.00716.48
7.4.80.0100.00719.39
7.4.70.0080.01116.45
7.4.60.0030.01516.43
7.4.50.0040.00416.49
7.4.40.0100.00716.16
7.4.30.0030.01216.47
7.4.00.0070.01114.80
7.3.330.0030.00312.92
7.3.320.0030.00313.01
7.3.310.0040.00416.16
7.3.300.0030.00316.02
7.3.290.0000.01416.30
7.3.280.0100.00616.17
7.3.270.0070.01017.40
7.3.260.0150.00616.30
7.3.250.0110.00616.51
7.3.240.0060.01116.50
7.3.230.0060.01216.39
7.3.210.0030.01316.12
7.3.200.0100.01319.39
7.3.190.0120.01116.22
7.3.180.0100.00716.34
7.3.170.0070.01016.35
7.3.160.0120.00316.44
7.3.10.0060.00316.52
7.3.00.0030.00616.60
7.2.330.0080.00816.50
7.2.320.0100.00716.60
7.2.310.0130.00416.36
7.2.300.0080.00816.30
7.2.290.0070.01016.20
7.2.130.0030.00916.42
7.2.120.0030.00716.61
7.2.110.0070.00716.58
7.2.100.0030.01016.31
7.2.90.0000.00916.79
7.2.80.0050.00516.72
7.2.70.0040.01116.59
7.2.60.0040.01116.50
7.2.50.0030.00916.46
7.2.40.0070.00716.91
7.2.30.0080.00316.61
7.2.20.0030.00716.65
7.2.10.0040.00816.76
7.2.00.0060.00817.98
7.1.250.0070.00415.50
7.1.200.0030.01015.57
7.1.100.0130.00815.91
7.1.70.0000.01016.99
7.1.60.0070.01819.61
7.1.50.0040.01816.81
7.1.00.0100.07022.28
7.0.200.0250.00814.90
7.0.140.0170.06022.00
7.0.110.0430.04019.90
7.0.100.0400.03019.96
7.0.90.0230.04320.00
7.0.80.0500.06019.89
7.0.70.0430.08019.82
7.0.60.0530.03719.95
7.0.50.0500.04019.78
7.0.40.0030.07019.70
7.0.30.0100.07319.66
7.0.20.0100.07319.78
7.0.10.0070.04319.70
7.0.00.0100.06019.74
5.6.280.0070.07020.85
5.6.260.0070.05020.66
5.6.250.0100.06020.64
5.6.240.0170.02720.68
5.6.230.0070.04320.64
5.6.220.0170.06720.67
5.6.210.0170.06720.68
5.6.200.0100.03720.70
5.6.190.0000.07720.67
5.6.180.0030.07720.63
5.6.170.0030.06320.56
5.6.160.0100.07720.54
5.6.150.0070.07020.58
5.6.140.0030.07720.61
5.6.130.0170.07020.68
5.6.120.0070.05020.61
5.6.110.0070.08320.82
5.6.100.0170.06720.60
5.6.90.0030.05320.56
5.6.80.0000.04320.03
5.6.70.0000.06319.91
5.6.60.0130.06320.04
5.6.50.0070.06719.92
5.6.40.0070.07019.98
5.6.30.0070.05719.90
5.6.20.0070.08020.19
5.6.10.0100.06020.19
5.6.00.0030.04019.88
5.5.380.0030.04717.54
5.5.370.0030.04317.53
5.5.360.0100.05717.52
5.5.350.0030.04017.62
5.5.340.0100.08018.01
5.5.330.0070.07718.25
5.5.320.0070.06718.13
5.5.310.0030.08317.86
5.5.300.0030.04717.84
5.5.290.0100.06317.86
5.5.280.0070.08017.98
5.5.270.0200.07017.85
5.5.260.0100.07317.85
5.5.250.0070.05317.66
5.5.240.0030.08017.68
5.5.230.0000.05717.22
5.5.220.0100.07717.51
5.5.210.0100.07017.55
5.5.200.0070.05717.36
5.5.190.0030.04717.62
5.5.180.0000.04717.23
5.5.160.0030.04017.35
5.5.150.0030.07017.21
5.5.140.0000.08717.50
5.5.130.0070.07717.60
5.5.120.0070.06017.24
5.5.110.0100.06017.44
5.5.100.0000.07717.05
5.5.90.0100.07017.13
5.5.80.0030.03317.50
5.5.70.0070.07017.41
5.5.60.0070.07017.41
5.5.50.0000.07717.01
5.5.40.0070.06717.13
5.5.30.0030.07317.26
5.5.20.0030.04017.08
5.5.10.0070.03317.36
5.5.00.0030.03717.08
5.4.450.0100.06719.40
5.4.440.0100.06019.37
5.4.430.0030.04719.23
5.4.420.0030.07319.48
5.4.410.0030.05719.27
5.4.400.0030.07319.00
5.4.390.0100.07719.05
5.4.380.0100.07319.02
5.4.370.0000.08019.04
5.4.360.0100.07719.03
5.4.350.0030.03719.00
5.4.340.0130.06019.00
5.4.320.0030.03719.03
5.4.310.0100.05318.95
5.4.300.0030.06019.18
5.4.290.0100.07318.93
5.4.280.0130.04019.00
5.4.270.0000.08318.93
5.4.260.0170.05718.95
5.4.250.0100.05318.95
5.4.240.0070.06018.90
5.4.230.0100.05019.14
5.4.220.0030.07718.93
5.4.210.0130.03719.15
5.4.200.0130.05319.07
5.4.190.0070.05719.07
5.4.180.0030.06719.00
5.4.170.0000.04018.99
5.4.160.0030.05319.14
5.4.150.0000.06319.08
5.4.140.0070.02716.37
5.4.130.0030.04016.20
5.4.120.0070.03316.11
5.4.110.0070.02716.46
5.4.100.0070.02716.29
5.4.90.0000.03716.45
5.4.80.0070.02716.20
5.4.70.0030.03716.51
5.4.60.0000.03316.07
5.4.50.0100.02316.33
5.4.40.0030.03316.39
5.4.30.0030.03016.26
5.4.20.0030.03716.27
5.4.10.0030.03016.21
5.4.00.0030.03015.56
5.3.290.0030.07014.68
5.3.280.0030.03314.53
5.3.270.0000.08714.45
5.3.260.0070.03314.39
5.3.250.0070.04014.60
5.3.240.0130.04714.70
5.3.230.0070.03314.52
5.3.220.0030.03714.39
5.3.210.0100.05314.62
5.3.200.0030.03714.50
5.3.190.0030.04314.46
5.3.180.0070.03314.45
5.3.170.0030.04314.66
5.3.160.0030.03314.56
5.3.150.0030.03014.63
5.3.140.0000.03714.54
5.3.130.0030.03714.48
5.3.120.0030.03014.37
5.3.110.0000.04014.39
5.3.100.0000.03314.13
5.3.90.0030.03313.93
5.3.80.0070.03013.85
5.3.70.0030.03014.02
5.3.60.0030.03314.07
5.3.50.0000.03713.88
5.3.40.0000.03714.01
5.3.30.0000.03713.82
5.3.20.0100.03013.70
5.3.10.0070.02713.55
5.3.00.0000.03313.49
5.2.170.0030.03012.13
5.2.160.0000.02712.13
5.2.150.0070.02712.13
5.2.140.0070.02312.13
5.2.130.0070.02012.13
5.2.120.0030.02312.13
5.2.110.0000.02712.13
5.2.100.0000.03012.13
5.2.90.0030.02712.13
5.2.80.0000.02712.13
5.2.70.0170.01712.13
5.2.60.0000.02712.13
5.2.50.0000.03012.13
5.2.40.0000.02712.13
5.2.30.0030.03012.13
5.2.20.0000.02312.13
5.2.10.0000.03012.13
5.2.00.0000.02312.13
5.1.60.0030.01712.13
5.1.50.0000.02712.13
5.1.40.0070.02012.13
5.1.30.0000.02712.13
5.1.20.0030.02012.13
5.1.10.0070.02312.13
5.1.00.0000.02312.13
5.0.50.0030.01312.13
5.0.40.0030.04012.13
5.0.30.0000.02712.13
5.0.20.0030.01712.13
5.0.10.0030.01712.13
5.0.00.0000.03012.13
4.4.90.0000.01312.13
4.4.80.0000.01312.13
4.4.70.0030.01012.13
4.4.60.0030.01312.13
4.4.50.0030.01312.13
4.4.40.0000.02012.13
4.4.30.0000.01712.13
4.4.20.0000.01312.13
4.4.10.0000.01312.13
4.4.00.0000.02012.13
4.3.110.0030.01312.13
4.3.100.0000.01712.13
4.3.90.0000.01712.13
4.3.80.0030.02312.13
4.3.70.0000.01312.13
4.3.60.0000.01312.13
4.3.50.0030.01012.13
4.3.40.0000.02312.13
4.3.30.0000.01312.13
4.3.20.0000.01712.13
4.3.10.0030.01312.13
4.3.00.0030.01712.13

preferences:
33.42 ms | 401 KiB | 5 Q