3v4l.org

run code in 300+ PHP versions simultaneously
<?php $arr = array('key' => null); var_dump(isset($arr['key']));

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)
8.3.40.0140.00718.63
8.3.30.0120.00318.60
8.3.20.0040.00418.66
8.3.10.0040.00420.95
8.3.00.0040.00423.38
8.2.170.0110.00322.96
8.2.160.0080.00620.58
8.2.150.0080.00024.18
8.2.140.0070.00024.66
8.2.130.0000.00826.16
8.2.120.0040.00421.13
8.2.110.0060.00322.08
8.2.100.0080.00317.84
8.2.90.0040.00419.28
8.2.80.0040.00417.97
8.2.70.0080.00017.50
8.2.60.0080.00017.93
8.2.50.0080.00018.07
8.2.40.0040.00418.22
8.2.30.0040.00419.72
8.2.20.0080.00017.64
8.2.10.0070.00017.61
8.2.00.0040.01017.61
8.1.270.0040.00423.99
8.1.260.0000.00726.35
8.1.250.0040.00428.09
8.1.240.0050.00522.30
8.1.230.0110.00020.89
8.1.220.0000.00818.77
8.1.210.0000.00818.84
8.1.200.0080.00017.23
8.1.190.0040.00417.40
8.1.180.0000.00718.10
8.1.170.0050.00318.46
8.1.160.0050.00218.71
8.1.150.0000.00718.65
8.1.140.0040.00417.43
8.1.130.0030.00317.81
8.1.120.0040.00417.39
8.1.110.0000.00817.29
8.1.100.0000.00717.36
8.1.90.0000.00817.23
8.1.80.0000.00717.21
8.1.70.0030.00317.36
8.1.60.0040.00417.52
8.1.50.0050.00217.41
8.1.40.0030.00617.47
8.1.30.0080.00017.63
8.1.20.0040.00417.45
8.1.10.0000.00717.39
8.1.00.0040.00417.48
8.0.300.0040.00419.89
8.0.290.0040.00417.16
8.0.280.0030.00318.30
8.0.270.0000.00717.18
8.0.260.0030.00316.74
8.0.250.0050.00216.86
8.0.240.0030.00616.89
8.0.230.0040.00416.84
8.0.220.0000.00716.88
8.0.210.0030.00316.71
8.0.200.0030.00316.95
8.0.190.0030.00316.89
8.0.180.0040.00416.84
8.0.170.0000.00816.85
8.0.160.0030.00516.89
8.0.150.0040.00416.70
8.0.140.0040.00416.68
8.0.130.0030.00313.23
8.0.120.0040.00416.84
8.0.110.0040.00416.68
8.0.100.0000.00816.64
8.0.90.0030.00316.81
8.0.80.0030.01216.86
8.0.70.0000.00716.81
8.0.60.0070.00016.70
8.0.50.0040.00416.80
8.0.30.0090.01017.12
8.0.20.0090.01217.40
8.0.10.0040.00416.84
8.0.00.0090.01316.69
7.4.330.0050.00014.82
7.4.320.0000.00616.45
7.4.300.0030.00316.51
7.4.290.0030.00516.53
7.4.280.0000.00716.43
7.4.270.0030.00316.54
7.4.260.0000.00513.20
7.4.250.0030.00316.46
7.4.240.0000.00716.48
7.4.230.0030.00316.38
7.4.220.0130.00316.38
7.4.210.0080.00816.53
7.4.200.0070.00016.31
7.4.190.0000.00716.57
7.4.160.0170.00716.48
7.4.150.0170.00717.40
7.4.140.0080.01217.86
7.4.130.0090.00916.42
7.4.120.0050.01416.36
7.4.110.0090.00916.40
7.4.100.0100.01316.35
7.4.90.0030.01316.34
7.4.80.0100.00619.37
7.4.70.0040.01816.46
7.4.60.0090.00616.38
7.4.50.0040.00416.19
7.4.40.0090.00622.27
7.4.30.0100.01316.46
7.4.00.0030.01314.74
7.3.330.0050.00012.99
7.3.320.0030.00313.03
7.3.310.0050.00216.28
7.3.300.0060.00016.03
7.3.290.0040.01116.15
7.3.280.0080.00816.22
7.3.270.0120.01117.40
7.3.260.0120.01018.24
7.3.250.0080.01216.57
7.3.240.0130.00316.57
7.3.230.0120.00616.39
7.3.210.0120.00616.58
7.3.200.0090.00919.39
7.3.190.0060.01016.12
7.3.180.0130.00316.10
7.3.170.0130.00616.27
7.3.160.0060.01316.23
7.3.120.0060.00314.61
7.2.330.0100.00616.61
7.2.320.0110.00816.20
7.2.310.0060.01216.39
7.2.300.0090.01316.64
7.2.290.0130.01016.37
7.2.00.0030.01319.43
7.1.100.1550.00315.77
7.1.70.0000.00717.02
7.1.60.0100.01319.40
7.1.50.0120.01216.86
7.1.00.0100.06322.54
7.0.200.0030.00616.41
7.0.140.0070.07022.21
7.0.70.0000.06021.74
7.0.60.0000.08321.74
7.0.50.0100.07321.96
7.0.40.0100.07720.13
7.0.30.0070.08020.13
7.0.20.0100.07020.10
7.0.10.0030.05320.09
7.0.00.0030.08020.10
5.6.280.0000.07720.88
5.6.220.0070.08020.58
5.6.210.0030.08020.55
5.6.200.0100.08021.13
5.6.190.0000.08721.01
5.6.180.0070.05721.02
5.6.170.0030.08721.05
5.6.160.0070.07721.07
5.6.150.0030.08321.12
5.6.140.0070.06020.95
5.6.130.0100.06021.09
5.6.120.0130.05720.97
5.6.110.0030.07320.94
5.6.100.0030.08320.95
5.6.90.0030.04021.02
5.6.80.0100.06020.42
5.6.70.0100.05720.34
5.6.60.0070.04320.49
5.6.50.0070.07320.32
5.6.40.0030.04720.46
5.6.30.0030.07320.36
5.6.20.0130.06020.45
5.6.10.0030.06320.29
5.6.00.0070.07720.26
5.5.360.0000.08020.32
5.5.350.0000.06020.32
5.5.340.0030.08020.85
5.5.330.0000.07020.86
5.5.320.0000.05020.76
5.5.310.0100.06320.84
5.5.300.0100.08320.76
5.5.290.0070.07720.63
5.5.280.0070.09020.71
5.5.270.0070.08320.78
5.5.260.0100.06020.81
5.5.250.0070.06320.59
5.5.240.0070.06720.27
5.5.230.0130.07320.22
5.5.220.0100.06720.16
5.5.210.0030.08020.23
5.5.200.0030.05320.12
5.5.190.0070.04020.22
5.5.180.0000.04320.14
5.5.160.0070.07720.20
5.5.150.0030.07020.22
5.5.140.0030.07720.11
5.5.130.0070.04319.98
5.5.120.0030.05020.24
5.5.110.0000.04720.06
5.5.100.0070.07320.15
5.5.90.0100.07020.05
5.5.80.0130.05320.14
5.5.70.0030.08020.04
5.5.60.0100.07720.04
5.5.50.0030.08019.92
5.5.40.0000.08020.04
5.5.30.0100.07020.06
5.5.20.0070.07020.04
5.5.10.0000.07020.11
5.5.00.0030.07020.00
5.4.450.0000.07019.35
5.4.440.0000.08319.28
5.4.430.0070.06319.36
5.4.420.0030.07319.13
5.4.410.0070.03319.31
5.4.400.0000.08319.06
5.4.390.0070.08019.07
5.4.380.0070.06719.02
5.4.370.0000.04019.11
5.4.360.0030.05018.79
5.4.350.0070.07019.06
5.4.340.0030.08018.98
5.4.320.0070.06318.96
5.4.310.0000.08018.90
5.4.300.0100.04018.80
5.4.290.0070.07018.80
5.4.280.0030.06718.97
5.4.270.0030.07719.04
5.4.260.0070.07318.94
5.4.250.0070.07018.79
5.4.240.0070.04319.09
5.4.230.0070.06318.97
5.4.220.0070.06019.22
5.4.210.0100.06319.08
5.4.200.0000.07718.96
5.4.190.0000.06718.77
5.4.180.0030.06019.01
5.4.170.0100.06019.07
5.4.160.0100.04319.02
5.4.150.0070.07719.12
5.4.140.0000.04016.32
5.4.130.0030.07316.36
5.4.120.0070.07016.34
5.4.110.0000.05716.26
5.4.100.0000.04016.44
5.4.90.0070.04016.30
5.4.80.0030.05716.34
5.4.70.0070.04316.18
5.4.60.0070.03716.23
5.4.50.0070.07016.39
5.4.40.0030.07016.40
5.4.30.0000.06016.39
5.4.20.0030.06016.37
5.4.10.0000.05316.18
5.4.00.0000.05315.77
5.3.290.0030.05314.64
5.3.280.0100.04714.57
5.3.270.0070.06714.59
5.3.260.0000.05014.46
5.3.250.0130.06314.46
5.3.240.0030.07714.58
5.3.230.0000.04714.59
5.3.220.0070.05314.46
5.3.210.0000.05314.42
5.3.200.0070.07014.43
5.3.190.0030.03714.51
5.3.180.0070.07014.46
5.3.170.0030.06014.54
5.3.160.0000.04314.50
5.3.150.0000.05714.41
5.3.140.0000.04714.40
5.3.130.0030.04014.53
5.3.120.0000.05314.52
5.3.110.0000.04014.55
5.3.100.0030.05713.94
5.3.90.0000.07313.97
5.3.80.0000.04714.00
5.3.70.0030.07313.98
5.3.60.0130.06013.96
5.3.50.0030.03713.79
5.3.40.0070.05013.91
5.3.30.0000.06713.88
5.3.20.0000.08713.63
5.3.10.0000.04713.63
5.3.00.0030.06313.40
5.2.170.0030.02711.14
5.2.160.0070.02710.98
5.2.150.0000.06710.93
5.2.140.0130.05710.99
5.2.130.0030.03011.13
5.2.120.0000.03710.94
5.2.110.0030.06011.04
5.2.100.0000.03710.91
5.2.90.0030.03011.16
5.2.80.0070.04010.92
5.2.70.0030.05011.00
5.2.60.0070.03711.03
5.2.50.0030.05710.77
5.2.40.0030.03710.82
5.2.30.0000.05310.88
5.2.20.0030.04710.80
5.2.10.0070.02310.71
5.2.00.0030.04710.65
5.1.60.0070.02710.21
5.1.50.0100.04710.21
5.1.40.0000.04710.21
5.1.30.0030.03310.26
5.1.20.0070.04710.41
5.1.10.0030.05310.21
5.1.00.0070.03310.21
5.0.50.0030.02010.21
5.0.40.0030.02710.21
5.0.30.0030.06310.21
5.0.20.0000.03710.21
5.0.10.0000.04010.21
5.0.00.0000.05010.21
4.4.90.0030.03710.21
4.4.80.0000.02710.21
4.4.70.0000.02310.21
4.4.60.0000.01710.21
4.4.50.0030.01710.21
4.4.40.0100.03310.21
4.4.30.0000.03010.21
4.4.20.0000.03010.21
4.4.10.0000.03010.21
4.4.00.0030.02310.21
4.3.110.0000.03010.21
4.3.100.0000.03710.21
4.3.90.0030.02010.21
4.3.80.0000.03710.21
4.3.70.0000.03710.21
4.3.60.0030.02710.21
4.3.50.0030.02310.21
4.3.40.0000.05010.21
4.3.30.0000.02710.21
4.3.20.0000.03010.21
4.3.10.0030.03010.21
4.3.00.0030.03010.21

preferences:
52.33 ms | 400 KiB | 5 Q