3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = array('toto' => null); echo isset($array['toto']); echo array_key_exists('toto', $array);

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)
8.3.70.0040.01116.49
8.3.60.0130.00718.31
8.3.50.0070.00921.91
8.3.40.0110.00418.90
8.3.30.0040.01119.01
8.3.20.0060.00320.01
8.3.10.0000.00822.03
8.3.00.0080.00022.35
8.2.180.0130.00316.38
8.2.170.0040.01122.96
8.2.160.0060.00920.99
8.2.150.0000.00724.18
8.2.140.0040.00424.66
8.2.130.0000.00726.16
8.2.120.0040.00417.63
8.2.110.0060.00320.26
8.2.100.0060.00619.64
8.2.90.0050.00319.13
8.2.80.0030.00519.74
8.2.70.0000.00917.63
8.2.60.0040.00418.05
8.2.50.0040.00418.07
8.2.40.0040.00418.22
8.2.30.0000.00718.12
8.2.20.0020.00517.78
8.2.10.0040.00417.61
8.2.00.0040.00417.48
8.1.280.0150.00325.92
8.1.270.0030.00522.04
8.1.260.0000.00926.35
8.1.250.0080.00028.09
8.1.240.0040.00423.84
8.1.230.0100.00019.01
8.1.220.0040.00417.74
8.1.210.0000.00918.77
8.1.200.0060.00317.10
8.1.190.0040.00417.39
8.1.180.0060.00318.10
8.1.170.0060.00318.65
8.1.160.0070.00421.89
8.1.150.0050.00318.59
8.1.140.0090.00017.38
8.1.130.0030.00317.82
8.1.120.0070.00017.46
8.1.110.0050.00317.43
8.1.100.0000.00717.39
8.1.90.0070.00017.33
8.1.80.0040.00417.27
8.1.70.0040.00417.32
8.1.60.0040.00417.53
8.1.50.0000.00717.46
8.1.40.0000.00717.47
8.1.30.0000.00717.53
8.1.20.0000.00817.53
8.1.10.0000.00817.52
8.1.00.0050.00217.51
8.0.300.0040.00418.77
8.0.290.0030.00517.18
8.0.280.0070.00018.47
8.0.270.0030.00317.29
8.0.260.0030.00318.36
8.0.250.0040.00316.84
8.0.240.0050.00317.00
8.0.230.0000.01016.79
8.0.220.0000.00716.72
8.0.210.0070.00016.79
8.0.200.0030.00316.84
8.0.190.0000.00816.75
8.0.180.0040.00416.81
8.0.170.0000.00816.74
8.0.160.0050.00216.88
8.0.150.0050.00216.72
8.0.140.0000.00816.78
8.0.130.0030.00313.31
8.0.120.0040.00416.73
8.0.110.0040.00416.79
8.0.100.0000.00716.92
8.0.90.0080.00016.68
8.0.80.0060.00916.81
8.0.70.0000.00716.81
8.0.60.0000.00716.68
8.0.50.0040.00416.75
8.0.30.0120.00817.03
8.0.20.0070.01117.40
8.0.10.0000.00717.00
8.0.00.0100.00616.79
7.4.330.0060.00015.00
7.4.320.0030.00316.56
7.4.300.0030.00316.48
7.4.290.0040.00416.67
7.4.280.0070.00016.54
7.4.270.0000.00716.57
7.4.260.0070.00316.47
7.4.250.0000.00716.54
7.4.240.0030.00416.46
7.4.230.0040.00416.59
7.4.220.0070.01016.68
7.4.210.0070.01216.61
7.4.200.0030.00316.34
7.4.190.0040.00416.65
7.4.160.0080.00816.32
7.4.150.0090.00917.40
7.4.140.0070.01217.86
7.4.130.0160.01016.56
7.4.120.0110.00516.59
7.4.110.0100.00716.45
7.4.100.0000.01616.43
7.4.90.0130.01016.48
7.4.80.0070.01019.39
7.4.70.0120.00416.49
7.4.60.0160.00616.33
7.4.50.0080.00016.52
7.4.40.0090.00922.77
7.4.30.0090.01216.51
7.4.00.0070.01014.82
7.3.330.0060.00012.95
7.3.320.0050.00013.04
7.3.310.0040.00416.16
7.3.300.0000.00716.11
7.3.290.0070.01116.17
7.3.280.0130.00616.22
7.3.270.0030.01517.40
7.3.260.0090.00816.20
7.3.250.0090.01016.38
7.3.240.0070.01016.48
7.3.230.0130.00316.39
7.3.210.0030.01416.44
7.3.200.0130.00719.39
7.3.190.0030.01616.27
7.3.180.0080.00816.32
7.3.170.0060.01016.52
7.3.160.0120.00416.23
7.3.120.0070.00314.71
7.3.10.0060.00916.52
7.3.00.0060.00616.49
7.2.330.0330.02516.65
7.2.320.0120.00616.47
7.2.310.0120.00616.57
7.2.300.0140.00416.19
7.2.290.0140.00716.39
7.2.130.0080.00416.73
7.2.120.0070.00716.89
7.2.110.0100.00316.84
7.2.100.0080.00316.79
7.2.90.0090.00616.81
7.2.80.0070.00716.48
7.2.70.0000.00916.73
7.2.60.0060.00816.71
7.2.50.0100.00016.79
7.2.40.0030.01016.99
7.2.30.0090.00616.88
7.2.20.0040.01216.86
7.2.10.0030.01016.73
7.2.00.0040.00818.09
7.1.250.0000.01115.40
7.1.200.0000.01115.49
7.1.100.0000.01118.25
7.1.70.0040.00416.71
7.1.60.0060.01919.82
7.1.50.0060.01616.91
7.1.00.0070.07322.51
7.0.200.0000.00716.71
7.0.140.0070.07022.00
7.0.60.0070.06019.78
7.0.50.0070.08317.68
7.0.40.0170.06020.07
7.0.30.0370.06720.18
7.0.20.0200.04320.16
7.0.10.0100.07020.30
7.0.00.0100.07720.04
5.6.280.0030.07320.85
5.6.210.0030.04020.52
5.6.200.0030.04018.16
5.6.190.0070.04020.64
5.6.180.0270.04320.64
5.6.170.0270.07020.49
5.6.160.0070.04020.38
5.6.150.0030.06318.22
5.6.140.0030.07718.18
5.6.130.0100.08318.07
5.6.120.0030.04320.95
5.6.110.0070.08720.96
5.6.100.0000.04321.10
5.6.90.0230.06321.11
5.6.80.0030.04020.34
5.5.350.0300.07020.29
5.5.340.0130.06317.88
5.5.330.0070.08320.37
5.5.320.0170.04320.31
5.5.310.0300.07320.17
5.5.300.0000.05317.91
5.5.290.0000.04318.00
5.5.280.0030.04020.74
5.5.270.0070.06020.79
5.5.260.0100.08320.83
5.5.250.0230.06320.77
5.5.240.0070.08320.19
5.4.450.0770.05319.49
5.4.440.0230.07319.48
5.4.430.0100.05319.45
5.4.420.0070.06319.15
5.4.410.0100.05318.87
5.4.400.0000.06018.68
5.4.390.0070.05318.71
5.4.380.0130.05018.49
5.4.370.0270.04718.59
5.4.360.0270.04318.53
5.4.350.0100.06318.74
5.4.340.0230.05018.68
5.4.320.0060.03612.45
5.4.310.0080.03912.45
5.4.300.0040.04012.45
5.4.290.0070.03912.45
5.4.280.0040.03712.35
5.4.270.0170.05719.07
5.4.260.0100.05319.10
5.4.250.0170.05318.96
5.4.240.0070.05319.16
5.4.230.0070.06018.98
5.4.220.0130.05718.76
5.4.210.0100.05319.07
5.4.200.0030.08319.00
5.4.190.0070.06018.98
5.4.180.0100.06019.05
5.4.170.0130.06018.99
5.4.160.0100.05318.98
5.4.150.0200.04318.79
5.4.140.0030.06016.47
5.4.130.0170.04316.52
5.4.120.0130.05016.63
5.4.110.0170.05016.50
5.4.100.0100.06316.40
5.4.90.0130.04716.61
5.4.80.0170.05316.48
5.4.70.0100.04716.54
5.4.60.0130.05016.49
5.4.50.0170.04316.32
5.4.40.0200.06016.60
5.4.30.0130.05316.30
5.4.20.0070.05316.46
5.4.10.0130.05316.41
5.4.00.0070.07715.96
5.3.290.0100.04012.80
5.3.280.0100.05014.74
5.3.270.0170.04714.69
5.3.260.0130.05014.60
5.3.250.0200.04714.75
5.3.240.0170.04714.75
5.3.230.0130.06014.57
5.3.220.0070.06314.62
5.3.210.0130.05014.73
5.3.200.0100.05314.55
5.3.190.0070.05314.70
5.3.180.0170.04314.45
5.3.170.0100.06314.37
5.3.160.0130.04714.55
5.3.150.0070.05714.70
5.3.140.0100.05314.75
5.3.130.0030.06714.63
5.3.120.0200.06714.53
5.3.110.0100.06014.55
5.3.100.0100.07013.92
5.3.90.0170.05314.18
5.3.80.0200.05314.07
5.3.70.0030.06314.13
5.3.60.0100.07014.04
5.3.50.0130.06313.93
5.3.40.0130.06314.00
5.3.30.0200.05713.99
5.3.20.0100.06313.77
5.3.10.0100.05713.59
5.3.00.0030.07713.71
5.2.170.0070.05711.25
5.2.160.0130.05311.36
5.2.150.0030.05311.26
5.2.140.0200.04311.07
5.2.130.0100.04711.08
5.2.120.0130.03711.02
5.2.110.0170.03711.24
5.2.100.0030.04311.02
5.2.90.0030.05711.21
5.2.80.0070.05311.30
5.2.70.0070.04311.02
5.2.60.0100.04011.18
5.2.50.0100.04311.17
5.2.40.0130.04011.12
5.2.30.0000.06311.01
5.2.20.0070.05711.09
5.2.10.0100.03310.90
5.2.00.0070.04310.93
5.1.60.0030.03710.27
5.1.50.0030.0539.98
5.1.40.0100.03710.01
5.1.30.0030.04310.55
5.1.20.0030.04710.64
5.1.10.0070.03710.18
5.1.00.0030.05310.18
5.0.50.0130.0278.73
5.0.40.0100.0238.71
5.0.30.0100.0538.49
5.0.20.0070.0338.39
5.0.10.0070.0308.37
5.0.00.0000.0538.36
4.4.90.0030.0236.77
4.4.80.0100.0236.77
4.4.70.0030.0276.77
4.4.60.0030.0236.77
4.4.50.0070.0276.77
4.4.40.0130.0306.77
4.4.30.0030.0206.77
4.4.20.0000.0336.77
4.4.10.0000.0306.77
4.4.00.0030.0336.77
4.3.110.0030.0306.77
4.3.100.0100.0206.77
4.3.90.0000.0276.77
4.3.80.0030.0406.77
4.3.70.0000.0336.77
4.3.60.0130.0206.77
4.3.50.0030.0236.77
4.3.40.0100.0376.77
4.3.30.0000.0236.77
4.3.20.0000.0306.77
4.3.10.0070.0236.77
4.3.00.0170.0206.61

preferences:
37.45 ms | 401 KiB | 5 Q