3v4l.org

run code in 300+ PHP versions simultaneously
<?php $variable = NULL; var_dump(isset($variable));

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)
8.5.30.0070.01119.03
8.5.20.0140.00419.36
8.5.10.0120.00816.41
8.5.00.0140.00719.72
8.4.180.0140.00819.55
8.4.170.0130.01020.38
8.4.160.0150.00620.59
8.4.150.0070.00516.71
8.4.140.0110.01017.34
8.4.130.0140.00718.54
8.4.120.0120.00520.46
8.4.110.0120.00818.64
8.4.100.0120.00817.60
8.4.90.0150.00620.48
8.4.80.0120.00817.64
8.4.70.0060.00217.41
8.4.60.0120.00818.67
8.4.50.0090.01018.58
8.4.40.0110.00017.45
8.4.30.0100.01017.60
8.4.20.0130.00719.42
8.4.10.0090.00019.27
8.3.300.0100.01020.74
8.3.290.0090.01120.81
8.3.280.0110.00820.04
8.3.270.0100.00916.50
8.3.260.0100.01016.28
8.3.250.0090.01016.50
8.3.240.0170.00316.47
8.3.230.0110.01016.62
8.3.220.0100.00818.76
8.3.210.0100.00918.32
8.3.200.0060.00316.43
8.3.190.0110.00717.07
8.3.180.0040.00416.72
8.3.170.0000.01717.22
8.3.160.0110.00720.12
8.3.150.0090.00918.13
8.3.140.0040.01517.04
8.3.130.0030.00618.30
8.3.120.0130.00316.73
8.3.110.0070.00016.50
8.3.100.0000.00816.63
8.3.90.0060.00318.04
8.3.80.0110.00018.06
8.3.70.0040.01116.49
8.3.60.0120.00616.38
8.3.50.0130.00518.07
8.3.40.0090.00618.43
8.3.30.0110.00418.32
8.3.20.0030.00520.13
8.3.10.0000.00722.02
8.3.00.0070.00023.52
8.2.300.0140.00520.17
8.2.290.0120.00717.17
8.2.280.0090.01218.46
8.2.270.0080.00017.15
8.2.260.0110.00716.44
8.2.250.0040.00416.68
8.2.240.0030.00620.83
8.2.230.0030.00720.94
8.2.220.0090.00024.06
8.2.210.0070.00726.77
8.2.200.0060.00616.50
8.2.190.0110.00418.04
8.2.180.0110.01118.41
8.2.170.0140.00722.96
8.2.160.0100.00320.58
8.2.150.0000.00724.18
8.2.140.0050.00324.66
8.2.130.0040.00421.96
8.2.120.0030.00626.35
8.2.110.0060.00320.54
8.2.100.0110.00017.91
8.2.90.0000.00817.75
8.2.80.0000.00818.65
8.2.70.0030.00817.79
8.2.60.0030.00517.97
8.2.50.0060.00318.10
8.2.40.0000.00719.30
8.2.30.0000.00719.08
8.2.20.0060.00317.90
8.2.10.0000.00718.01
8.2.00.0000.00818.08
8.1.340.0130.00720.12
8.1.330.0110.00816.05
8.1.320.0090.01016.31
8.1.310.0020.00518.39
8.1.300.0110.00819.62
8.1.290.0000.00918.88
8.1.280.0060.00825.92
8.1.270.0080.00023.73
8.1.260.0060.00926.35
8.1.250.0000.00828.09
8.1.240.0090.00022.14
8.1.230.0090.00317.75
8.1.220.0000.00817.74
8.1.210.0000.00818.77
8.1.200.0060.00317.35
8.1.190.0080.00018.91
8.1.180.0040.00418.10
8.1.170.0000.00920.36
8.1.160.0000.00718.77
8.1.150.0040.00420.12
8.1.140.0000.00717.66
8.1.130.0000.00618.95
8.1.120.0040.00417.44
8.1.110.0000.00817.38
8.1.100.0040.00417.38
8.1.90.0040.00417.39
8.1.80.0030.00617.38
8.1.70.0040.00417.39
8.1.60.0030.00617.38
8.1.50.0050.00217.42
8.1.40.0000.00717.35
8.1.30.0090.00317.51
8.1.20.0030.00617.47
8.1.10.0040.00417.41
8.1.00.0000.00917.37
8.0.300.0040.00418.77
8.0.290.0000.00916.63
8.0.280.0020.00518.25
8.0.270.0030.00516.74
8.0.260.0040.00418.29
8.0.250.0000.00916.87
8.0.240.0030.00416.77
8.0.230.0000.00716.87
8.0.220.0070.00016.80
8.0.210.0040.00416.72
8.0.200.0030.00316.88
8.0.190.0040.00416.93
8.0.180.0040.00416.83
8.0.170.0040.00416.83
8.0.160.0020.00516.77
8.0.150.0050.00316.66
8.0.140.0000.00716.79
8.0.130.0030.00313.24
8.0.120.0040.00416.71
8.0.110.0060.00316.75
8.0.100.0040.00416.71
8.0.90.0040.00416.77
8.0.80.0040.01116.86
8.0.70.0080.00016.84
8.0.60.0040.00416.75
8.0.50.0040.00416.80
8.0.30.0090.00817.13
8.0.20.0110.00917.40
8.0.10.0050.00316.98
8.0.00.0110.01016.73
7.4.330.0020.00215.55
7.4.320.0070.00016.55
7.4.300.0030.00316.52
7.4.290.0000.00716.43
7.4.280.0030.00316.41
7.4.270.0030.00316.52
7.4.260.0070.00016.32
7.4.250.0040.00416.39
7.4.240.0040.00416.36
7.4.230.0050.00316.27
7.4.220.0100.00716.38
7.4.210.0040.01816.59
7.4.200.0050.00216.54
7.4.160.0120.00416.48
7.4.150.0110.00717.40
7.4.140.0130.00617.86
7.4.130.0090.00916.48
7.4.120.0110.00816.33
7.4.110.0060.01216.32
7.4.100.0150.00416.41
7.4.90.0160.00016.30
7.4.80.0110.00519.39
7.4.70.0070.01016.44
7.4.60.0030.01316.47
7.4.50.0000.01516.13
7.4.40.0090.00616.36
7.4.30.0130.00316.57
7.4.00.0060.00614.69
7.3.330.0050.00012.88
7.3.320.0050.00012.97
7.3.310.0060.00015.95
7.3.300.0050.00316.06
7.3.290.0090.00816.11
7.3.280.0070.00816.14
7.3.270.0070.01617.40
7.3.260.0070.01016.48
7.3.250.0080.01116.35
7.3.240.0090.01016.20
7.3.230.0090.00916.14
7.3.210.0100.00616.13
7.3.200.0070.01416.45
7.3.190.0030.01916.43
7.3.180.0130.00916.16
7.3.170.0130.00316.14
7.3.160.0050.01216.28
7.2.330.0110.00716.50
7.2.320.0080.01216.52
7.2.310.0040.01216.50
7.2.300.0100.01416.39
7.2.290.0060.01216.38
7.2.110.0040.00716.44
7.2.100.0040.01116.53
7.2.90.0080.00016.48
7.2.80.0040.00816.74
7.2.70.0160.00316.68
7.2.60.0080.00716.85
7.2.50.0070.01116.52
7.2.40.0170.00016.86
7.2.30.0120.00616.76
7.2.20.0070.01016.73
7.2.10.0130.00316.71
7.2.00.0160.00316.75
7.1.230.0080.00415.79
7.1.220.0140.00715.44
7.1.210.0000.00815.56
7.1.200.0060.00415.71
7.1.190.0040.00715.68
7.1.180.0080.00515.70
7.1.170.0140.00015.44
7.1.160.0050.00815.65
7.1.150.0150.00315.70
7.1.140.0110.00315.63
7.1.130.0100.00315.54
7.1.120.0150.00015.51
7.1.110.0060.01015.57
7.1.100.1560.00815.78
7.1.90.2540.00915.57
7.1.80.0160.00815.87
7.1.70.1710.00815.48
7.1.60.0330.01024.56
7.1.50.0900.00724.40
7.1.40.0200.00724.08
7.1.30.0220.01224.14
7.1.20.2180.00524.06
7.1.10.1680.00915.22
7.1.00.0140.00715.12
7.0.310.0070.00315.45
7.0.300.0130.00015.37
7.0.290.0060.00615.23
7.0.280.0120.00415.27
7.0.270.0030.01315.02
7.0.260.0000.01315.13
7.0.250.0060.00615.25
7.0.240.0110.00315.38
7.0.230.0190.00715.28
7.0.220.3500.01315.39
7.0.210.0110.00614.98
7.0.200.0820.00015.22
7.0.190.0260.00814.92
7.0.180.0160.00314.72
7.0.170.0160.00714.75
7.0.160.0140.00714.75
7.0.150.0140.00714.65
7.0.140.0140.01014.80
7.0.130.3850.00614.83
7.0.120.0140.01114.97
7.0.110.0190.00914.86
7.0.100.0110.01214.89
7.0.90.3690.00814.78
7.0.80.3950.00714.72
7.0.70.3740.00314.87
7.0.60.3410.00814.70
7.0.50.3520.00914.90
7.0.40.0110.00613.92
7.0.30.0140.00414.03
7.0.20.0120.01013.82
7.0.10.0090.00913.91
7.0.00.0090.01114.09
5.6.380.0030.01213.89

preferences:
59.01 ms | 1594 KiB | 5 Q