3v4l.org

run code in 300+ PHP versions simultaneously
<?php $obj = new stdClass(); $obj->property1 = FALSE; var_dump(isset($obj->property1)); unset($obj->property1); var_dump(isset($obj->property1));

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)
8.3.40.0130.00618.83
8.3.30.0140.00020.34
8.3.20.0080.00020.35
8.3.10.0090.00022.09
8.3.00.0000.00822.43
8.2.170.0060.00922.96
8.2.160.0130.00020.47
8.2.150.0040.00424.18
8.2.140.0060.00324.66
8.2.130.0030.00626.16
8.2.120.0050.00319.54
8.2.110.0030.00720.54
8.2.100.0060.00617.91
8.2.90.0080.00019.09
8.2.80.0030.00517.97
8.2.70.0030.00517.50
8.2.60.0040.00417.80
8.2.50.0060.00318.07
8.2.40.0040.00417.80
8.2.30.0050.00317.86
8.2.20.0040.00417.48
8.2.10.0000.00817.49
8.2.00.0040.00417.64
8.1.270.0030.00620.25
8.1.260.0110.00326.35
8.1.250.0100.00728.09
8.1.240.0050.00523.92
8.1.230.0030.00717.42
8.1.220.0030.00617.74
8.1.210.0000.00818.77
8.1.200.0030.00617.23
8.1.190.0040.00417.52
8.1.180.0040.00420.09
8.1.170.0000.00818.62
8.1.160.0040.00422.13
8.1.150.0070.00018.52
8.1.140.0020.00517.43
8.1.130.0000.00717.86
8.1.120.0000.00817.23
8.1.110.0040.00417.38
8.1.100.0000.00717.40
8.1.90.0000.00817.35
8.1.80.0000.00717.43
8.1.70.0030.00317.31
8.1.60.0040.00417.52
8.1.50.0000.00717.51
8.1.40.0030.00517.50
8.1.30.0080.00017.50
8.1.20.0000.00817.55
8.1.10.0000.00717.50
8.1.00.0000.00817.56
8.0.300.0040.00418.77
8.0.290.0000.00816.63
8.0.280.0030.00318.31
8.0.270.0030.00317.18
8.0.260.0060.00016.62
8.0.250.0030.00316.88
8.0.240.0040.00416.92
8.0.230.0030.00316.88
8.0.220.0050.00216.84
8.0.210.0000.00716.85
8.0.200.0000.00716.85
8.0.190.0030.00616.95
8.0.180.0080.00016.90
8.0.170.0040.00416.83
8.0.160.0000.00816.87
8.0.150.0070.00016.89
8.0.140.0060.00316.79
8.0.130.0000.00513.29
8.0.120.0030.00516.67
8.0.110.0040.00416.82
8.0.100.0000.00716.72
8.0.90.0050.00316.86
8.0.80.0070.01416.79
8.0.70.0000.00716.79
8.0.60.0070.00016.75
8.0.50.0000.00816.75
8.0.30.0080.01117.03
8.0.20.0080.01017.40
8.0.10.0000.00716.74
8.0.00.0110.00816.70
7.4.330.0050.00015.00
7.4.320.0000.00616.33
7.4.300.0060.00016.49
7.4.290.0030.00316.51
7.4.280.0030.00316.43
7.4.270.0030.00316.47
7.4.260.0030.00716.45
7.4.250.0000.00716.36
7.4.240.0030.00416.40
7.4.230.0070.00016.60
7.4.220.0130.00516.55
7.4.210.0080.00816.57
7.4.200.0030.00316.55
7.4.190.0000.00816.70
7.4.160.0030.01216.28
7.4.150.0030.01417.40
7.4.140.0120.00717.86
7.4.130.0080.01116.41
7.4.120.0080.01016.36
7.4.110.0100.00716.36
7.4.100.0120.00416.45
7.4.90.0040.01316.43
7.4.80.0100.01319.39
7.4.70.0070.01116.47
7.4.60.0070.01016.49
7.4.50.0020.00216.43
7.4.40.0040.01222.77
7.4.30.0140.00316.33
7.4.00.0100.00314.96
7.3.330.0020.00213.26
7.3.320.0060.00012.98
7.3.310.0020.00516.36
7.3.300.0030.00316.28
7.3.290.0070.00716.30
7.3.280.0100.00716.22
7.3.270.0130.00317.40
7.3.260.0110.00616.50
7.3.250.0080.01116.18
7.3.240.0070.01116.31
7.3.230.0110.01116.39
7.3.210.0070.01016.25
7.3.200.0030.01419.39
7.3.190.0070.01516.50
7.3.180.0140.00316.56
7.3.170.0090.00616.58
7.3.160.0110.00316.44
7.3.120.0040.00814.76
7.2.330.0120.00616.67
7.2.320.0120.00916.34
7.2.310.0070.01016.52
7.2.300.0100.01016.41
7.2.290.0120.00416.42
7.2.00.0120.00619.21
7.1.100.0140.01017.95
7.1.70.0000.01017.07
7.1.60.0130.01019.50
7.1.50.0000.02216.78
7.1.00.0000.03722.45
7.0.200.0000.00716.65
7.0.140.0100.06722.05
7.0.60.0070.08319.93
7.0.50.0000.04317.66
7.0.40.0070.04320.04
7.0.30.0270.05020.33
7.0.20.0330.06020.33
7.0.10.0330.08020.01
7.0.00.0030.08020.08
5.6.280.0000.07720.86
5.6.210.0100.06320.71
5.6.200.0070.05718.18
5.6.190.0170.08020.32
5.6.180.3630.04020.28
5.6.170.0270.06020.57
5.6.160.0130.07020.44
5.6.150.0030.04718.13
5.6.140.0070.06318.17
5.6.130.0070.06018.18
5.6.120.0030.04321.14
5.6.110.0200.07320.93
5.6.100.0030.08020.88
5.6.90.0100.08020.97
5.6.80.0030.04720.53
5.6.70.0230.07020.50
5.5.350.0200.06720.40
5.5.340.0070.04017.89
5.5.330.0070.07320.12
5.5.320.0230.08720.27
5.5.310.0200.06320.41
5.5.300.0170.04017.98
5.5.290.0030.04018.02
5.5.280.0030.05020.87
5.5.270.0000.04720.75
5.5.260.0030.07720.79
5.5.250.0070.08720.60
5.5.240.0030.03720.16
5.4.450.0100.06319.11
5.4.440.0670.05319.27
5.4.430.0070.05719.27
5.4.420.0870.05019.25
5.4.410.0730.05319.50
5.4.400.0470.05318.76
5.4.390.0400.05318.71
5.4.380.0270.05318.52
5.4.370.0170.05318.70
5.4.360.0130.05718.63
5.4.350.0090.03511.98
5.4.340.0070.03711.97
5.4.320.0030.03912.46
5.4.310.0030.03912.45
5.4.300.0030.04212.46
5.4.290.0070.04112.45
5.4.280.0070.03812.35
5.4.270.0050.04612.35
5.4.260.0070.04512.35
5.4.250.0130.04318.99
5.4.240.0070.05318.88
5.4.230.0070.07318.74
5.4.220.0000.06018.83
5.4.210.0130.04319.00
5.4.200.0200.03718.99
5.4.190.0070.05718.72
5.4.180.0070.05018.79
5.4.170.0130.04318.93
5.4.160.0170.04719.00
5.4.150.0100.05318.87
5.4.140.0100.05016.27
5.4.130.0100.04316.38
5.4.120.0230.06016.25
5.4.110.0130.06716.39
5.4.100.0100.05016.40
5.4.90.0030.06316.34
5.4.80.0170.04016.51
5.4.70.0100.04716.48
5.4.60.0230.06016.23
5.4.50.0130.06016.26
5.4.40.0100.06316.55
5.4.30.0070.04716.17
5.4.20.0070.04716.45
5.4.10.0070.05316.23
5.4.00.0100.04715.72
5.3.290.0090.03512.80
5.3.280.0070.06714.74
5.3.270.0100.04714.60
5.3.260.0100.04714.59
5.3.250.0070.05314.29
5.3.240.0130.04314.45
5.3.230.0100.04714.29
5.3.220.0230.06314.40
5.3.210.0070.05714.41
5.3.200.0100.07014.66
5.3.190.0070.07014.48
5.3.180.0070.07314.48
5.3.170.0030.06014.41
5.3.160.0070.05014.26
5.3.150.0100.04714.57
5.3.140.0030.05714.57
5.3.130.0130.04714.33
5.3.120.0130.04714.54
5.3.110.0070.08314.41
5.3.100.0130.06714.05
5.3.90.0100.07013.88
5.3.80.0070.05014.03
5.3.70.0170.03713.87
5.3.60.0170.05014.01
5.3.50.0000.05713.81
5.3.40.0100.04313.96
5.3.30.0070.06713.90
5.3.20.0070.05313.38
5.3.10.0070.04713.65
5.3.00.0100.05013.59
5.2.170.0100.05711.05
5.2.160.0030.04311.18
5.2.150.0100.03710.98
5.2.140.0070.04711.24
5.2.130.0070.06011.20
5.2.120.0100.05011.11
5.2.110.0130.04711.21
5.2.100.0070.05310.98
5.2.90.0130.05011.25
5.2.80.0100.05710.85
5.2.70.0030.05011.02
5.2.60.0100.04011.15
5.2.50.0070.04311.02
5.2.40.0030.04711.02
5.2.30.0070.05011.06
5.2.20.0070.03710.96
5.2.10.0070.03711.01
5.2.00.0000.04710.89
5.1.60.0030.03310.54
5.1.50.0000.03710.54
5.1.40.0000.04010.54
5.1.30.0030.03310.54
5.1.20.0030.03710.56
5.1.10.0070.03310.54
5.1.00.0070.03310.54
5.0.50.0030.04010.54
5.0.40.0100.02010.54
5.0.30.0030.04010.54
5.0.20.0030.02710.54
5.0.10.0100.03310.54
5.0.00.0070.05310.54
4.4.90.0030.02310.54
4.4.80.0100.01710.54
4.4.70.0000.03310.54
4.4.60.0100.01310.54
4.4.50.0030.02010.54
4.4.40.0000.04310.54
4.4.30.0000.02310.54
4.4.20.0030.02010.54
4.4.10.0030.02310.54
4.4.00.0070.03010.54
4.3.110.0000.02310.54
4.3.100.0000.02310.54
4.3.90.0070.02010.54
4.3.80.0030.03310.54
4.3.70.0030.03010.54
4.3.60.0030.02710.54
4.3.50.0030.02010.54
4.3.40.0100.03710.54
4.3.30.0030.02010.54
4.3.20.0000.02310.54
4.3.10.0000.02710.54
4.3.00.0130.0206.86

preferences:
41.09 ms | 400 KiB | 5 Q