3v4l.org

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

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)
8.3.70.0060.01216.50
8.3.60.0170.00016.23
8.3.50.0160.00716.49
8.3.40.0070.00718.59
8.3.30.0140.00018.64
8.3.20.0040.00418.77
8.3.10.0050.00318.65
8.3.00.0040.00419.25
8.2.180.0160.00616.38
8.2.170.0140.00022.96
8.2.160.0120.00318.66
8.2.150.0070.01025.66
8.2.140.0040.00424.66
8.2.130.0070.00026.16
8.2.120.0100.00017.91
8.2.110.0030.00721.05
8.2.100.0090.00317.74
8.2.90.0040.00419.09
8.2.80.0040.00417.97
8.2.70.0030.00617.63
8.2.60.0040.00418.05
8.2.50.0050.00318.10
8.2.40.0040.00420.59
8.2.30.0000.00719.17
8.2.20.0030.00717.68
8.2.10.0000.00717.54
8.2.00.0080.00417.59
8.1.280.0110.00425.92
8.1.270.0080.00023.99
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0090.00022.17
8.1.230.0110.00019.16
8.1.220.0040.00417.74
8.1.210.0000.00818.77
8.1.200.0060.00317.25
8.1.190.0030.00517.13
8.1.180.0040.00418.10
8.1.170.0040.00418.57
8.1.160.0040.00418.91
8.1.150.0050.00218.82
8.1.140.0060.00317.39
8.1.130.0070.00019.21
8.1.120.0030.00517.30
8.1.110.0000.00717.39
8.1.100.0000.00717.33
8.1.90.0030.00617.38
8.1.80.0000.00717.32
8.1.70.0030.00317.32
8.1.60.0040.00417.46
8.1.50.0000.00817.42
8.1.40.0040.00417.46
8.1.30.0040.00717.55
8.1.20.0030.00617.52
8.1.10.0000.00717.48
8.1.00.0030.00517.34
8.0.300.0040.00418.77
8.0.290.0070.00016.75
8.0.280.0030.00318.32
8.0.270.0030.00317.06
8.0.260.0030.00316.79
8.0.250.0040.00416.88
8.0.240.0000.00716.90
8.0.230.0040.00416.92
8.0.220.0000.00816.79
8.0.210.0040.00416.72
8.0.200.0050.00316.86
8.0.190.0040.00416.90
8.0.180.0120.00016.88
8.0.170.0060.00316.86
8.0.160.0060.00316.87
8.0.150.0030.00616.73
8.0.140.0000.00816.78
8.0.130.0040.00413.34
8.0.120.0050.00516.81
8.0.110.0000.00816.77
8.0.100.0050.00316.68
8.0.90.0020.00516.85
8.0.80.0130.01216.82
8.0.70.0080.00016.88
8.0.60.0060.00316.68
8.0.50.0030.00516.85
8.0.30.0040.01217.05
8.0.20.0080.00917.05
8.0.10.0070.00016.96
8.0.00.0150.00716.68
7.4.330.0020.00212.95
7.4.320.0000.00616.54
7.4.300.0030.00316.53
7.4.290.0000.00716.57
7.4.280.0040.00416.34
7.4.270.0060.00016.39
7.4.260.0000.00513.23
7.4.250.0040.00416.27
7.4.240.0030.00316.44
7.4.230.0000.00716.62
7.4.220.0160.00916.39
7.4.210.0070.00716.38
7.4.200.0080.00016.55
7.4.190.0060.00316.57
7.4.160.0120.00316.54
7.4.150.0110.00716.29
7.4.140.0140.00717.86
7.4.130.0150.00416.32
7.4.120.0080.00816.30
7.4.110.0350.01016.33
7.4.100.0060.01016.34
7.4.90.0140.00316.43
7.4.80.0070.01019.39
7.4.70.0120.00916.41
7.4.60.0080.00816.37
7.4.50.0050.00016.39
7.4.40.0040.01116.31
7.4.30.0130.00916.58
7.4.00.0100.00514.89
7.3.330.0030.00312.95
7.3.320.0030.00313.11
7.3.310.0040.00416.02
7.3.300.0030.00316.03
7.3.290.0040.01216.18
7.3.280.0070.00716.16
7.3.270.0060.01116.55
7.3.260.0030.01316.10
7.3.240.0120.00416.51
7.3.230.0100.00516.29
7.3.210.0090.01216.12
7.3.200.0090.01116.21
7.3.190.0030.01916.52
7.3.180.0070.01016.15
7.3.170.0070.01316.11
7.3.160.0120.00316.19
7.3.120.0020.01714.83
7.3.110.0040.01514.66
7.3.100.0060.01214.61
7.3.90.0070.01014.72
7.3.80.0060.00614.83
7.3.70.0080.00014.75
7.3.60.0000.01614.59
7.3.50.0060.00814.69
7.3.40.0060.00814.83
7.3.30.0060.00614.65
7.3.20.0120.00016.31
7.3.10.0080.00516.45
7.3.00.0050.00616.40
7.2.330.0060.01216.43
7.2.320.0140.00316.29
7.2.310.0100.01316.60
7.2.300.0070.01016.55
7.2.290.0100.00716.52
7.2.250.0110.00714.81
7.2.240.0070.01415.12
7.2.230.0030.01014.70
7.2.220.0060.00914.82
7.2.210.0060.00914.77
7.2.200.0090.00315.05
7.2.190.0090.00615.05
7.2.180.0030.00615.04
7.2.170.0030.01014.83
7.2.130.0100.00716.82
7.2.120.0070.01016.83
7.2.110.0080.00616.57
7.2.100.0030.00916.71
7.2.90.0080.00416.65
7.2.80.0060.00816.95
7.2.70.0040.01116.52
7.2.60.0060.00616.83
7.2.50.0070.00716.76
7.2.40.0030.01016.95
7.2.30.0070.00416.98
7.2.20.0080.00616.72
7.2.10.0070.00716.87
7.2.00.0060.00817.90
7.1.330.0060.01015.79
7.1.320.0060.00615.59
7.1.310.0000.00815.81
7.1.300.0030.00615.63
7.1.290.0070.00315.55
7.1.280.0060.00915.34
7.1.270.0070.00715.38
7.1.260.0100.00315.75
7.1.250.0030.00615.65
7.1.100.0080.00817.98
7.1.70.0030.00617.11
7.1.60.0120.01219.21
7.1.50.0090.01316.88
7.1.00.0000.05722.43
7.0.200.0090.00616.45
7.0.140.0070.07022.21
7.0.120.0000.07722.14
7.0.60.0070.03720.03
7.0.50.0000.04317.84
7.0.40.0070.07020.00
7.0.30.0200.04720.17
7.0.20.0330.07720.09
7.0.10.0070.07020.16
7.0.00.0030.08319.99
5.6.280.0000.07321.13
5.6.210.0170.05320.74
5.6.200.0130.07018.11
5.6.190.0100.08720.39
5.6.180.0300.07020.39
5.6.170.0200.06020.49
5.6.160.0200.07020.52
5.6.150.0030.06018.09
5.6.140.0130.07718.21
5.6.130.0030.05018.11
5.6.120.0130.05720.96
5.6.110.0130.07720.96
5.6.100.0070.04021.11
5.6.90.0130.07720.95
5.6.80.0130.07320.28
5.5.350.0030.07320.32
5.5.340.0030.04017.93
5.5.330.0030.04720.34
5.5.320.0000.04720.51
5.5.310.0330.07320.15
5.5.300.0000.04317.95
5.5.290.0070.08317.98
5.5.280.0070.04020.87
5.5.270.0100.07720.75
5.5.260.0170.03320.63
5.5.250.0100.04320.65
5.5.240.0270.04020.15
5.4.450.0000.05719.14
5.4.440.0100.07719.11
5.4.430.0100.04319.11
5.4.420.0130.05019.23
5.4.410.0030.07319.38
5.4.400.0070.05018.78
5.4.390.0030.04719.18
5.4.380.0070.07318.92
5.4.370.0030.04719.18
5.4.360.0000.06319.18
5.4.350.0070.05019.18
5.4.340.0100.07319.00
5.4.320.0030.05019.15
5.4.310.0070.04318.79
5.4.300.0200.06019.00
5.4.290.0100.04319.18
5.4.280.0100.07719.14
5.4.270.0070.05319.18
5.4.260.0170.04319.15
5.4.250.0130.07318.91
5.4.240.0130.06719.00
5.4.230.0100.05318.78
5.4.220.0100.07319.17
5.4.210.0100.07318.80
5.4.200.0030.06719.16
5.4.190.0070.05318.79
5.4.180.0030.03719.16
5.4.170.0030.03718.77
5.4.160.0070.03319.11
5.4.150.0100.03318.98
5.4.140.0070.03316.48
5.4.130.0030.03316.30
5.4.120.0030.03316.11
5.4.110.0070.03316.39
5.4.100.0030.03316.60
5.4.90.0100.02716.33
5.4.80.0000.04016.25
5.4.70.0030.03716.13
5.4.60.0030.03316.24
5.4.50.0070.03016.32
5.4.40.0200.02716.58
5.4.30.0030.03316.13
5.4.20.0000.03716.12
5.4.10.0030.03316.38
5.4.00.0000.04015.80
5.3.290.0100.07714.45
5.3.280.0200.06714.68
5.3.270.0000.04014.39
5.3.260.0030.04014.42
5.3.250.0130.02714.55
5.3.240.0000.04014.58
5.3.230.0000.04014.57
5.3.220.0100.03014.44
5.3.210.0030.03714.48
5.3.200.0030.03714.35
5.3.190.0070.03314.50
5.3.180.0030.03314.59
5.3.170.0030.03714.51
5.3.160.0030.03714.36
5.3.150.0000.03714.45
5.3.140.0000.04014.49
5.3.130.0070.03314.47
5.3.120.0000.04014.48
5.3.110.0100.03314.36
5.3.100.0000.04013.93
5.3.90.0030.03313.89
5.3.80.0070.03713.95
5.3.70.0070.03714.03
5.3.60.0000.04013.93
5.3.50.0070.03013.87
5.3.40.0030.04013.90
5.3.30.0030.03713.83
5.3.20.0000.03713.50
5.3.10.0030.03313.49
5.3.00.0000.03713.57
5.2.170.0030.03011.04
5.2.160.0000.03311.13
5.2.150.0070.02310.96
5.2.140.0030.02711.07
5.2.130.0000.03011.07
5.2.120.0000.03011.02
5.2.110.0070.02311.03
5.2.100.0070.02311.07
5.2.90.0000.03011.04
5.2.80.0000.03011.04
5.2.70.0030.03011.04
5.2.60.0000.04711.20
5.2.50.0070.02311.09
5.2.40.0100.04010.93
5.2.30.0030.04711.05
5.2.20.0000.03710.88
5.2.10.0000.04010.84
5.2.00.0070.03010.73
5.1.60.0030.02310.06
5.1.50.0030.0409.98
5.1.40.0070.0279.96
5.1.30.0030.05010.18
5.1.20.0030.06010.35
5.1.10.0030.0279.90
5.1.00.0070.02710.05
5.0.50.0030.0208.55
5.0.40.0070.0408.42
5.0.30.0070.0308.12
5.0.20.0000.0208.16
5.0.10.0000.0278.14
5.0.00.0070.0278.06
4.4.90.0000.0307.88
4.4.80.0000.0177.88
4.4.70.0000.0207.88
4.4.60.0030.0177.88
4.4.50.0000.0177.88
4.4.40.0070.0207.88
4.4.30.0100.0137.88
4.4.20.0070.0107.88
4.4.10.0000.0177.88
4.4.00.0000.0377.88
4.3.110.0030.0237.88
4.3.100.0000.0177.88
4.3.90.0000.0177.88
4.3.80.0000.0407.88
4.3.70.0000.0307.88
4.3.60.0030.0177.88
4.3.50.0000.0237.88
4.3.40.0030.0437.88
4.3.30.0000.0207.88
4.3.20.0000.0437.88
4.3.10.0000.0237.88
4.3.00.0000.0237.88

preferences:
49.39 ms | 401 KiB | 5 Q