3v4l.org

run code in 300+ PHP versions simultaneously
<?php $ar = ['a' => null]; var_dump(isset($ar['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)
8.3.40.0150.00018.63
8.3.30.0120.00319.10
8.3.20.0080.00020.29
8.3.10.0030.00523.70
8.3.00.0000.00919.26
8.2.170.0120.00322.96
8.2.160.0100.01020.39
8.2.150.0050.00324.18
8.2.140.0060.00324.66
8.2.130.0060.00926.16
8.2.120.0080.00021.04
8.2.110.0060.00322.16
8.2.100.0090.00320.95
8.2.90.0040.00419.22
8.2.80.0080.00017.97
8.2.70.0040.00417.63
8.2.60.0040.00517.93
8.2.50.0000.00818.07
8.2.40.0000.00718.03
8.2.30.0040.00418.16
8.2.20.0030.00617.62
8.2.10.0000.00717.98
8.2.00.0040.00417.50
8.1.270.0080.00023.96
8.1.260.0040.00426.35
8.1.250.0070.00028.09
8.1.240.0050.00323.97
8.1.230.0070.00319.10
8.1.220.0030.00617.74
8.1.210.0030.00518.77
8.1.200.0030.00617.10
8.1.190.0000.00816.99
8.1.180.0000.00818.10
8.1.170.0030.00618.50
8.1.160.0040.00421.81
8.1.150.0000.00718.71
8.1.140.0050.00217.48
8.1.130.0000.00717.76
8.1.120.0040.00417.39
8.1.110.0070.00017.33
8.1.100.0050.00217.29
8.1.90.0040.00417.40
8.1.80.0030.00317.29
8.1.70.0030.00317.37
8.1.60.0030.00617.51
8.1.50.0030.00617.33
8.1.40.0080.00017.37
8.1.30.0000.00917.47
8.1.20.0040.00417.60
8.1.10.0030.00617.50
8.1.00.0030.00517.45
8.0.300.0000.00818.77
8.0.290.0040.00416.63
8.0.280.0040.00418.33
8.0.270.0020.00517.19
8.0.260.0030.00317.11
8.0.250.0070.00016.86
8.0.240.0050.00316.95
8.0.230.0000.00716.88
8.0.220.0030.00316.85
8.0.210.0030.00316.71
8.0.200.0000.00716.82
8.0.190.0000.00716.85
8.0.180.0070.00016.75
8.0.170.0040.00416.84
8.0.160.0000.00816.82
8.0.150.0000.00716.79
8.0.140.0000.00816.69
8.0.130.0060.00013.26
8.0.120.0040.00416.84
8.0.110.0040.00416.80
8.0.100.0050.00216.82
8.0.90.0050.00216.69
8.0.80.0130.00316.84
8.0.70.0040.00416.89
8.0.60.0040.00416.72
8.0.50.0000.00816.70
8.0.30.0120.00716.96
8.0.20.0070.01217.40
8.0.10.0000.00916.80
8.0.00.0130.00516.74
7.4.330.0000.00515.00
7.4.320.0000.00616.36
7.4.300.0030.00316.44
7.4.290.0040.00416.54
7.4.280.0050.00316.51
7.4.270.0090.00016.42
7.4.260.0060.00316.41
7.4.250.0040.00416.33
7.4.240.0050.00216.45
7.4.230.0000.00716.24
7.4.220.0110.00716.38
7.4.210.0140.00016.43
7.4.200.0070.00016.42
7.4.160.0060.00916.54
7.4.150.0110.00717.40
7.4.140.0100.01317.86
7.4.130.0040.01516.47
7.4.120.0080.00916.37
7.4.110.0100.00716.46
7.4.100.0090.00916.41
7.4.90.0120.00416.41
7.4.80.0100.00719.39
7.4.70.0120.00916.59
7.4.60.0060.01016.44
7.4.50.0040.00416.29
7.4.40.0030.01716.34
7.4.30.0060.00916.34
7.4.10.0050.01414.75
7.4.00.0060.00914.89
7.3.330.0000.00713.04
7.3.320.0030.00312.99
7.3.310.0030.00316.03
7.3.300.0020.00516.21
7.3.290.0060.00916.15
7.3.280.0050.01016.18
7.3.270.0030.01317.40
7.3.260.0180.01216.33
7.3.250.0120.00716.23
7.3.240.0100.01416.37
7.3.230.0120.00616.39
7.3.210.0080.01116.14
7.3.200.0130.00919.39
7.3.190.0090.01216.11
7.3.180.0030.01716.39
7.3.170.0060.00916.36
7.3.160.0120.00316.12
7.3.130.0060.00814.64
7.3.120.0050.01414.73
7.3.110.0090.00914.81
7.3.100.0070.00914.58
7.3.90.0040.00914.51
7.3.80.0060.00514.85
7.3.70.0060.00514.40
7.3.60.0050.00914.61
7.3.50.0100.00114.77
7.3.40.0050.00714.46
7.3.30.0120.00314.70
7.3.20.0060.00716.46
7.3.10.0240.01115.91
7.3.00.0040.00816.54
7.2.330.0070.01016.56
7.2.320.0090.00916.36
7.2.310.0000.01716.51
7.2.300.0090.01416.34
7.2.290.0060.01016.63
7.2.260.0050.01214.89
7.2.250.0090.00914.95
7.2.240.0060.00914.78
7.2.230.0090.00314.81
7.2.220.0100.00314.93
7.2.210.0050.00814.78
7.2.200.0060.00614.76
7.2.190.0070.00514.77
7.2.180.0050.00914.77
7.2.170.0070.00814.89
7.2.160.0090.00614.92
7.2.150.0050.01016.80
7.2.140.0030.00816.58
7.2.130.0080.00616.61
7.2.120.0100.00416.78
7.2.110.0080.00616.67
7.2.100.0020.01116.77
7.2.90.0040.01016.74
7.2.80.0070.00816.56
7.2.70.0070.00516.74
7.2.60.0070.00616.55
7.2.50.0080.00916.69
7.2.40.0080.00416.68
7.2.30.0050.00616.77
7.2.20.0050.00716.58
7.2.10.0070.00516.67
7.2.00.0060.00716.64
7.1.330.0050.01015.62
7.1.320.0080.00715.82
7.1.310.0070.00715.69
7.1.300.0040.00915.78
7.1.290.0050.00515.49
7.1.280.0140.00115.56
7.1.270.0050.00915.44
7.1.260.0060.00515.80
7.1.250.0070.00515.74
7.1.240.0010.01015.54
7.1.230.0030.00815.49
7.1.220.0040.00915.53
7.1.210.0080.00515.66
7.1.200.0040.00815.60
7.1.190.0060.00715.58
7.1.180.0050.00515.44
7.1.170.0050.00715.62
7.1.160.0040.00715.52
7.1.150.0100.00215.63
7.1.140.0040.00715.61
7.1.130.0070.00315.66
7.1.120.0040.00715.63
7.1.110.0050.00715.59
7.1.100.0060.00615.57
7.1.90.0030.00715.57
7.1.80.0070.00715.56
7.1.70.0040.00915.88
7.1.60.0040.01116.49
7.1.50.0070.00515.92
7.1.40.0040.00515.49
7.1.30.0080.00615.56
7.1.20.0040.00715.54
7.1.10.0070.00515.66
7.1.00.0060.02117.41
7.0.330.0040.00614.96
7.0.320.0040.00815.11
7.0.310.0040.00515.11
7.0.300.0050.00615.11
7.0.290.0060.00615.19
7.0.280.0060.00615.31
7.0.270.0030.00815.11
7.0.260.0040.00815.21
7.0.250.0020.00815.06
7.0.240.0070.00515.08
7.0.230.0050.00515.20
7.0.220.0080.00415.15
7.0.210.0090.00315.15
7.0.200.0070.00415.45
7.0.190.0060.00615.20
7.0.180.0050.00815.05
7.0.170.0060.00615.07
7.0.160.0040.01015.22
7.0.150.0040.00515.17
7.0.140.0050.02216.93
7.0.130.0030.00815.30
7.0.120.0060.00615.22
7.0.110.0040.00815.21
7.0.100.0040.00915.13
7.0.90.0040.00815.30
7.0.80.0020.00915.33
7.0.70.0040.00715.25
7.0.60.0080.02416.47
7.0.50.0070.02115.93
7.0.40.0060.02414.96
7.0.30.0100.01314.95
7.0.20.0120.01415.01
7.0.10.0040.02814.96
7.0.00.0030.02414.93
5.6.400.0020.01214.13
5.6.390.0090.00714.19
5.6.380.0030.00914.10
5.6.370.0030.00914.04
5.6.360.0050.00614.26
5.6.350.0070.00314.12
5.6.340.0060.00614.14
5.6.330.0030.00814.26
5.6.320.0040.00814.04
5.6.310.0030.00714.17
5.6.300.0020.01114.33
5.6.290.0080.00514.23
5.6.280.0060.02015.84
5.6.270.0050.00614.28
5.6.260.0060.00714.34
5.6.250.0070.00614.19
5.6.240.0050.00714.32
5.6.230.0040.00914.29
5.6.220.0060.00714.12
5.6.210.0060.02615.83
5.6.200.0070.02015.20
5.6.190.0040.02615.81
5.6.180.0120.01415.75
5.6.170.0100.01515.67
5.6.160.0080.02415.83
5.6.150.0050.02415.19
5.6.140.0080.02515.16
5.6.130.0070.01315.08
5.6.120.0070.02615.92
5.6.110.0040.02915.80
5.6.100.0050.02315.88
5.6.90.0040.02915.91
5.6.80.0040.02415.54
5.6.70.0030.01114.15
5.6.60.0060.00914.09
5.6.50.0060.00814.06
5.6.40.0060.00614.01
5.6.30.0040.00914.05
5.6.20.0060.00714.21
5.6.10.0020.00714.03
5.6.00.0090.00314.03
5.5.380.0060.00413.30
5.5.370.0050.00813.20
5.5.360.0070.00413.10
5.5.350.0100.02514.92
5.5.340.0030.01714.43
5.5.330.0040.01714.83
5.5.320.0060.01614.94
5.5.310.0130.02214.89
5.5.300.0040.01814.27
5.5.290.0030.01814.36
5.5.280.0020.02315.10
5.5.270.0070.01415.09
5.5.260.0080.01815.06
5.5.250.0040.02614.91
5.5.240.0010.01614.94
5.5.230.0040.00913.08
5.5.220.0030.00712.97
5.5.210.0080.00513.07
5.5.200.0060.00613.05
5.5.190.0020.00813.18
5.5.180.0060.00513.04
5.5.170.0060.00713.05
5.5.160.0050.00713.03
5.5.150.0070.00513.08
5.5.140.0010.01013.09
5.5.130.0050.00713.25
5.5.120.0030.00812.95
5.5.110.0020.00913.07
5.5.100.0060.00713.13
5.5.90.0050.00413.17
5.5.80.0030.00813.18
5.5.70.0050.00713.13
5.5.60.0050.00713.02
5.5.50.0070.00513.02
5.5.40.0040.00612.98
5.5.30.0080.00513.01
5.5.20.0020.00913.18
5.5.10.0080.00313.06
5.5.00.0010.01013.18
5.4.450.0210.01713.40
5.4.440.0180.01913.39
5.4.430.0240.01813.37
5.4.420.0270.01413.38
5.4.410.0220.01613.28
5.4.400.0190.01613.22
5.4.390.0200.01713.26
5.4.380.0070.01613.13
5.4.370.0040.01713.06
5.4.360.0030.01413.09
5.4.350.0070.01211.47
5.4.340.0020.01511.45
5.4.330.0010.00811.28
5.4.320.0030.01311.57
5.4.310.0030.01911.63
5.4.300.0050.01211.63
5.4.290.0020.01411.55
5.4.280.0050.01211.60
5.4.270.0050.01211.58
5.4.260.0030.01411.54
5.4.250.0020.01411.58
5.4.240.0030.01411.49
5.4.230.0040.01311.47
5.4.220.0030.01311.58
5.4.210.0040.01711.52
5.4.200.0050.01411.55
5.4.190.0070.02011.56
5.4.180.0060.01411.58
5.4.170.0050.01511.49
5.4.160.0100.01411.54
5.4.150.0050.01511.56
5.4.140.0080.01411.48
5.4.130.0050.01611.52
5.4.120.0060.01811.43
5.4.110.0070.01411.48
5.4.100.0050.01711.48
5.4.90.0050.01711.43
5.4.80.0040.01811.44
5.4.70.0040.01811.48
5.4.60.0050.01511.45
5.4.50.0040.01311.41
5.4.40.0040.01411.44
5.4.30.0050.01411.52
5.4.20.0040.01211.47
5.4.10.0040.01511.49
5.4.00.0040.01411.38

preferences:
41.09 ms | 400 KiB | 5 Q