3v4l.org

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

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)
8.3.70.0120.00316.63
8.3.60.0100.01016.38
8.3.50.0140.00721.89
8.3.40.0110.00418.85
8.3.30.0100.00318.96
8.3.20.0080.00020.09
8.3.10.0080.00021.67
8.3.00.0080.00019.13
8.2.190.0100.00716.63
8.2.180.0030.01918.54
8.2.170.0070.01022.96
8.2.160.0080.00620.22
8.2.150.0040.00424.18
8.2.140.0030.00624.66
8.2.130.0020.00526.16
8.2.120.0000.00819.66
8.2.110.0030.00620.93
8.2.100.0060.00617.63
8.2.90.0080.00019.28
8.2.80.0000.00817.97
8.2.70.0030.00617.63
8.2.60.0040.00417.92
8.2.50.0030.00518.07
8.2.40.0040.00419.79
8.2.30.0040.00417.95
8.2.20.0050.00217.66
8.2.10.0070.00017.89
8.2.00.0050.00317.59
8.1.280.0120.00925.92
8.1.270.0030.00620.31
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0090.00024.03
8.1.230.0070.00317.66
8.1.220.0040.00417.74
8.1.210.0080.00018.77
8.1.200.0030.00617.35
8.1.190.0050.00317.13
8.1.180.0000.00818.10
8.1.170.0030.00518.65
8.1.160.0070.00021.84
8.1.150.0040.00418.72
8.1.140.0000.00817.28
8.1.130.0030.00317.66
8.1.120.0030.00417.37
8.1.110.0000.00717.43
8.1.100.0040.00417.36
8.1.90.0000.00717.38
8.1.80.0030.00617.43
8.1.70.0030.00317.30
8.1.60.0040.00417.44
8.1.50.0050.00317.43
8.1.40.0040.00417.32
8.1.30.0040.00417.40
8.1.20.0070.00017.50
8.1.10.0000.00717.46
8.1.00.0000.00817.38
8.0.300.0000.00718.77
8.0.290.0040.00416.58
8.0.280.0030.00318.29
8.0.270.0030.00317.18
8.0.260.0030.00317.19
8.0.250.0070.00016.80
8.0.240.0030.00316.92
8.0.230.0030.00516.80
8.0.220.0050.00316.82
8.0.210.0040.00416.76
8.0.200.0000.00616.71
8.0.190.0040.00416.88
8.0.180.0040.00416.88
8.0.170.0070.00016.80
8.0.160.0000.00816.90
8.0.150.0000.00716.66
8.0.140.0050.00316.82
8.0.130.0060.00013.18
8.0.120.0000.00716.81
8.0.110.0040.00416.82
8.0.100.0040.00416.61
8.0.90.0030.00516.80
8.0.80.0070.00716.75
8.0.70.0050.00216.71
8.0.60.0040.00416.77
8.0.50.0040.00416.77
8.0.30.0100.01416.99
8.0.20.0130.01117.40
8.0.10.0000.00716.94
8.0.00.0090.01116.72
7.4.330.0050.00015.07
7.4.320.0000.00616.32
7.4.300.0030.00316.45
7.4.290.0000.00716.50
7.4.280.0000.00716.52
7.4.270.0000.00716.45
7.4.260.0040.00416.50
7.4.250.0040.00316.39
7.4.240.0070.00116.41
7.4.230.0070.00016.18
7.4.220.0150.00616.56
7.4.210.0050.01316.49
7.4.200.0070.00016.34
7.4.160.0100.00616.58
7.4.150.0150.00317.40
7.4.140.0120.00617.86
7.4.130.0080.00916.38
7.4.120.0060.01116.55
7.4.110.0100.01016.40
7.4.100.0110.00616.37
7.4.90.0100.00716.42
7.4.80.0100.00719.39
7.4.70.0130.00316.43
7.4.60.0080.00816.38
7.4.50.0040.00416.23
7.4.40.0060.01016.28
7.4.30.0090.00916.44
7.4.00.0030.00914.72
7.3.330.0050.00013.13
7.3.320.0000.01112.90
7.3.310.0030.00316.16
7.3.300.0070.00016.19
7.3.290.0000.00716.09
7.3.280.0110.00716.22
7.3.270.0060.01217.40
7.3.260.0110.00616.05
7.3.250.0090.01216.43
7.3.240.0100.00616.13
7.3.230.0160.00616.39
7.3.210.0100.00616.58
7.3.200.0090.00919.39
7.3.190.0060.00916.32
7.3.180.0040.01216.44
7.3.170.0060.00916.27
7.3.160.0080.00816.20
7.2.330.0090.00916.60
7.2.320.0120.00316.64
7.2.310.0090.00916.29
7.2.300.0090.00916.65
7.2.290.0230.00016.59
7.2.60.0120.00316.38
7.2.00.0060.00619.32
7.1.200.0160.00315.76
7.1.100.0030.00717.86
7.1.70.0060.00316.61
7.1.60.0110.01419.50
7.1.50.0180.00416.93
7.1.00.0100.07022.35
7.0.200.0060.00316.60
7.0.140.0000.06722.08
7.0.60.0030.04019.93
7.0.50.0170.03317.66
7.0.40.0170.04020.12
7.0.30.0200.05320.16
7.0.20.0300.06720.09
7.0.10.0370.05719.99
7.0.00.0100.05020.23
5.6.280.0030.07320.90
5.6.210.0030.08720.45
5.6.200.0030.04018.18
5.6.190.0070.04320.41
5.6.180.0330.07320.59
5.6.170.0130.04320.52
5.6.160.0130.06320.71
5.6.150.0100.04018.18
5.6.140.0200.04018.21
5.6.130.0100.08018.13
5.6.120.0070.09020.97
5.6.110.0100.08020.99
5.6.100.0070.07021.08
5.6.90.0130.06320.96
5.6.80.0130.06720.50
5.6.70.0230.06320.37
5.5.350.0200.06020.43
5.5.340.0130.07718.02
5.5.330.0070.08320.40
5.5.320.0200.07020.23
5.5.310.0330.08020.28
5.5.300.0300.03717.95
5.5.290.0130.05717.96
5.5.280.0100.07720.64
5.5.270.0030.07020.96
5.5.260.0030.04720.88
5.5.250.0070.08020.65
5.5.240.0100.07320.20
5.4.450.0200.05319.11
5.4.440.0930.07319.34
5.4.430.0700.05719.47
5.4.420.0170.04719.46
5.4.410.0070.06719.28
5.4.400.0230.05318.68
5.4.390.0230.05018.45
5.4.380.0170.06018.55
5.4.370.0270.05018.65
5.4.360.0170.05318.65
5.4.350.0170.05718.63
5.4.340.0130.05718.54
5.4.320.0170.05718.55
5.4.310.0170.05318.54
5.4.300.0130.05718.54
5.4.290.0100.06018.54
5.4.280.0130.07318.65
5.4.270.0230.07018.40
5.4.260.0170.06018.62
5.4.250.0130.06018.70
5.4.240.0270.06018.47
5.4.230.0230.05018.46
5.4.220.0300.04318.62
5.4.210.0130.06318.64
5.4.200.0230.05316.59
5.4.190.0370.05318.65
5.4.180.0230.05718.47
5.4.170.0300.05018.52
5.4.160.0300.04718.46
5.4.150.0200.05718.46
5.4.140.0170.05016.24
5.4.130.0230.04316.16
5.4.120.0230.04716.15
5.4.110.0170.05016.22
5.4.100.0200.04716.15
5.4.90.0130.05716.23
5.4.80.0170.05016.22
5.4.70.0070.06016.23
5.4.60.0130.05316.07
5.4.50.0130.05016.28
5.4.40.0170.04716.28
5.4.30.0170.05016.01
5.4.20.0130.05716.13
5.4.10.0270.04016.26
5.4.00.0170.05715.48
5.3.290.0130.06314.58
5.3.280.0200.06014.56
5.3.270.0270.04714.66
5.3.260.0170.05714.54
5.3.250.0230.04714.62
5.3.240.0130.05314.57
5.3.230.0170.05714.54
5.3.220.0200.05014.47
5.3.210.0130.06014.54
5.3.200.0270.05314.53
5.3.190.0200.05014.56
5.3.180.0270.04314.52
5.3.170.0170.05014.52
5.3.160.0100.05314.62
5.3.150.0170.05014.47
5.3.140.0170.05014.55
5.3.130.0200.05014.57
5.3.120.0100.06014.61
5.3.110.0200.05014.52
5.3.100.0170.05314.03
5.3.90.0270.05714.00
5.3.80.0200.04713.95
5.3.70.0200.04713.91
5.3.60.0200.06013.92
5.3.50.0370.03314.03
5.3.40.0230.04713.89
5.3.30.0100.06013.90
5.3.20.0170.06013.61
5.3.10.0130.07313.68
5.3.00.0200.05013.72
5.2.170.0270.04711.26
5.2.160.0130.05711.09
5.2.150.0130.05711.07
5.2.140.0200.05011.17
5.2.130.0100.04311.13
5.2.120.0170.03711.15
5.2.110.0100.04311.23
5.2.100.0200.03711.07
5.2.90.0170.04011.14
5.2.80.0230.05311.06
5.2.70.0130.04011.23
5.2.60.0170.04011.04
5.2.50.0130.04310.95
5.2.40.0170.03311.02
5.2.30.0100.04310.94
5.2.20.0130.03711.02
5.2.10.0130.03710.88
5.2.00.0100.04010.72
5.1.60.0200.02710.01
5.1.50.0170.03010.05
5.1.40.0100.03310.00
5.1.30.0030.04310.46
5.1.20.0200.02710.39
5.1.10.0130.04010.05
5.1.00.0200.02710.07
5.0.50.0100.0278.52
5.0.40.0100.0238.39
5.0.30.0070.0438.20
5.0.20.0000.0338.30
5.0.10.0100.0238.29
5.0.00.0070.0438.32
4.4.90.0070.0205.88
4.4.80.0030.0235.88
4.4.70.0000.0275.87
4.4.60.0030.0235.90
4.4.50.0070.0205.91
4.4.40.0030.0375.91
4.4.30.0070.0235.90
4.4.20.0130.0135.94
4.4.10.0000.0275.98
4.4.00.0070.0375.84
4.3.110.0030.0235.84
4.3.100.0100.0175.75
4.3.90.0030.0235.80
4.3.80.0130.0275.90
4.3.70.0070.0205.77
4.3.60.0070.0205.79
4.3.50.0070.0205.81
4.3.40.0130.0305.82
4.3.30.0000.0274.55
4.3.20.0070.0204.52
4.3.10.0030.0234.50
4.3.00.0000.0237.27

preferences:
35.48 ms | 401 KiB | 5 Q