3v4l.org

run code in 300+ PHP versions simultaneously
<?php $v = array(); $d = new stdClass(); var_dump(isset($v[$d])); unset($v[$d]);

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)
8.3.60.0120.00918.68
8.3.50.0100.00921.14
8.3.40.0130.00618.84
8.3.30.0140.00020.20
8.3.20.0070.00720.29
8.3.10.0080.00021.21
8.3.00.0040.00422.49
8.2.180.0140.00016.63
8.2.170.0110.00322.96
8.2.160.0040.01122.16
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0000.00826.16
8.2.120.0040.00420.81
8.2.110.0030.00619.30
8.2.100.0040.00717.91
8.2.90.0080.00019.08
8.2.80.0000.00817.97
8.2.70.0030.00617.63
8.2.60.0050.00617.93
8.2.50.0040.00418.07
8.2.40.0000.00818.02
8.2.30.0000.00719.36
8.2.20.0000.00817.63
8.2.10.0070.00017.61
8.2.00.0050.00317.73
8.1.280.0030.01425.92
8.1.270.0040.00423.99
8.1.260.0050.00326.35
8.1.250.0040.00428.09
8.1.240.0040.00422.19
8.1.230.0060.00618.99
8.1.220.0060.00317.74
8.1.210.0000.00818.77
8.1.200.0060.00317.36
8.1.190.0000.00817.23
8.1.180.0000.00818.10
8.1.170.0000.01118.52
8.1.160.0070.00018.82
8.1.150.0040.00418.51
8.1.140.0050.00217.39
8.1.130.0070.00417.79
8.1.120.0040.00417.38
8.1.110.0050.00317.42
8.1.100.0040.00417.35
8.1.90.0040.00417.40
8.1.80.0040.00417.37
8.1.70.0000.00817.34
8.1.60.0060.00317.50
8.1.50.0000.00717.52
8.1.40.0040.00417.48
8.1.30.0000.00717.55
8.1.20.0050.00317.54
8.1.10.0040.00417.59
8.1.00.0030.00517.50
8.0.300.0000.00718.77
8.0.290.0040.00416.63
8.0.280.0000.00718.40
8.0.270.0000.00717.10
8.0.260.0000.00616.74
8.0.250.0030.00316.98
8.0.240.0000.00816.93
8.0.230.0030.00616.82
8.0.220.0040.00416.88
8.0.210.0000.00716.79
8.0.200.0030.00317.01
8.0.190.0040.00416.94
8.0.180.0040.00416.80
8.0.170.0000.00816.91
8.0.160.0070.00016.98
8.0.150.0040.00416.70
8.0.140.0060.00316.86
8.0.130.0000.00513.30
8.0.120.0030.00516.73
8.0.110.0080.00016.82
8.0.100.0070.00016.78
8.0.90.0040.00416.95
8.0.80.0130.00316.95
8.0.70.0000.00816.95
8.0.60.0050.00216.79
8.0.50.0050.00216.76
8.0.30.0110.00816.97
8.0.20.0120.00717.40
8.0.10.0000.00716.85
8.0.00.0130.00516.71
7.4.330.0060.00014.97
7.4.320.0030.00316.48
7.4.300.0030.00316.58
7.4.290.0000.00716.56
7.4.280.0070.00016.59
7.4.270.0040.00416.39
7.4.260.0030.00313.23
7.4.250.0040.00416.42
7.4.240.0070.00016.56
7.4.230.0030.00316.33
7.4.220.0070.01016.48
7.4.210.0070.00816.60
7.4.200.0030.00316.43
7.4.190.0070.00016.68
7.4.160.0030.01316.56
7.4.150.0170.00417.40
7.4.140.0130.00617.86
7.4.130.0060.01316.33
7.4.120.0100.00716.36
7.4.110.0070.01016.50
7.4.100.0080.01316.64
7.4.90.0140.00316.48
7.4.80.0110.00919.39
7.4.70.0060.01116.45
7.4.60.0070.01416.44
7.4.50.0000.00616.43
7.4.40.0030.00922.77
7.4.30.0130.00316.46
7.4.00.0070.01014.79
7.3.330.0030.00213.19
7.3.320.0050.00012.98
7.3.310.0060.00016.20
7.3.300.0000.00616.27
7.3.290.0090.00416.19
7.3.280.0090.00816.26
7.3.270.0170.00717.40
7.3.260.0060.01218.24
7.3.250.0110.00716.27
7.3.240.0040.01516.41
7.3.230.0030.01316.45
7.3.210.0140.00316.19
7.3.200.0140.00319.39
7.3.190.0130.00716.18
7.3.180.0080.00816.29
7.3.170.0000.01616.40
7.3.160.0130.01016.37
7.3.120.0040.01214.90
7.2.330.0090.00916.33
7.2.320.0070.01316.68
7.2.310.0040.01316.21
7.2.300.0090.00916.66
7.2.290.0080.01116.70
7.2.60.0030.00917.05
7.1.200.0100.00315.51
7.1.100.0200.01016.92
7.1.70.0030.00717.05
7.1.60.0150.00919.17
7.1.50.0030.01716.57
7.1.00.0030.05322.28
7.0.200.0040.00416.87
7.0.140.0030.07722.00
7.0.100.0330.06719.98
7.0.90.0270.05319.82
7.0.80.0230.07019.93
7.0.70.0030.07719.95
7.0.60.0130.03719.96
7.0.50.0300.08320.35
7.0.40.0070.06720.15
7.0.30.0100.04720.07
7.0.20.0030.05320.07
7.0.10.0070.08320.10
7.0.00.0130.07320.09
5.6.280.0000.07721.06
5.6.250.0130.06720.75
5.6.240.0070.08320.63
5.6.230.0100.05720.71
5.6.220.0200.07020.61
5.6.210.0070.05320.55
5.6.200.0100.07721.03
5.6.190.0170.05021.01
5.6.180.0030.08321.16
5.6.170.0130.07721.10
5.6.160.0270.06721.07
5.6.150.0030.07321.10
5.6.140.0100.08020.94
5.6.130.0070.08021.13
5.6.120.0030.08020.96
5.6.110.0100.04321.00
5.6.100.0170.04721.15
5.6.90.0070.07720.98
5.6.80.0030.08020.38
5.6.70.0130.04320.38
5.6.60.0130.04020.38
5.6.50.0030.05720.34
5.6.40.0100.07020.38
5.6.30.0100.05320.31
5.6.20.0170.05020.43
5.6.10.0070.07320.37
5.6.00.0170.07720.35
5.5.380.0100.07320.43
5.5.370.0170.07320.41
5.5.360.0030.04320.40
5.5.350.0030.04320.40
5.5.340.0070.04320.82
5.5.330.0070.08720.85
5.5.320.0130.07720.63
5.5.310.0030.08020.79
5.5.300.0100.08020.88
5.5.290.0070.07720.82
5.5.280.0030.06020.89
5.5.270.0130.07720.86
5.5.260.0170.07720.84
5.5.250.0070.04720.73
5.5.240.0200.06719.99
5.5.230.0070.08020.14
5.5.220.0100.06320.16
5.5.210.0070.07020.27
5.5.200.0100.07020.27
5.5.190.0030.05020.28
5.5.180.0000.05320.22
5.5.160.0000.04720.27
5.5.150.0130.07720.18
5.5.140.0130.07020.22
5.5.130.0030.04320.10
5.5.120.0070.05720.27
5.5.110.0130.07320.15
5.5.100.0170.07020.06
5.5.90.0070.05020.06
5.5.80.0170.06020.14
5.5.70.0030.08320.09
5.5.60.0070.04719.90
5.5.50.0130.06719.95
5.5.40.0070.07019.92
5.5.30.0000.07320.12
5.5.20.0130.07320.04
5.5.10.0070.05320.08
5.5.00.0100.07019.93
5.4.450.0100.06319.31
5.4.440.0130.06319.29
5.4.430.0170.07319.10
5.4.420.0070.06019.13
5.4.410.0070.07019.31
5.4.400.0100.07719.15
5.4.390.0200.04019.12
5.4.380.0030.05318.79
5.4.370.0130.07318.96
5.4.360.0100.04019.05
5.4.350.0130.06319.02
5.4.340.0030.07718.98
5.4.320.0100.06019.07
5.4.310.0030.07318.96
5.4.300.0100.05318.95
5.4.290.0070.06719.03
5.4.280.0030.04318.88
5.4.270.0030.04319.07
5.4.260.0070.07018.89
5.4.250.0030.07019.13
5.4.240.0030.06718.94
5.4.230.0030.06319.24
5.4.220.0070.07719.04
5.4.210.0070.07318.96
5.4.200.0030.08319.11
5.4.190.0030.05319.11
5.4.180.0100.07319.04
5.4.170.0030.07018.89
5.4.160.0200.06319.07
5.4.150.0130.05019.07
5.4.140.0070.07716.36
5.4.130.0170.03316.38
5.4.120.0070.04716.34
5.4.110.0000.05316.21
5.4.100.0000.05716.26
5.4.90.0030.05016.26
5.4.80.0000.06716.20
5.4.70.0070.03316.43
5.4.60.0030.04016.39
5.4.50.0100.05716.38
5.4.40.0070.03716.37
5.4.30.0100.07316.30
5.4.20.0000.03716.30
5.4.10.0000.04016.30
5.4.00.0070.07015.51
5.3.290.0070.05314.62
5.3.280.0000.08014.59
5.3.270.0230.02714.59
5.3.260.0130.06714.57
5.3.250.0100.07014.41
5.3.240.0130.06714.46
5.3.230.0070.06014.57
5.3.220.0030.04314.54
5.3.210.0030.07714.42
5.3.200.0100.07014.52
5.3.190.0100.06314.51
5.3.180.0200.06314.39
5.3.170.0170.03314.55
5.3.160.0030.03714.57
5.3.150.0170.06014.38
5.3.140.0000.03714.41
5.3.130.0070.03314.53
5.3.120.0070.07014.53
5.3.110.0030.06014.53
5.3.100.0070.07713.89
5.3.90.0000.07014.01
5.3.80.0070.07014.00
5.3.70.0170.05713.96
5.3.60.0100.05714.00
5.3.50.0070.07313.89
5.3.40.0030.05313.92
5.3.30.0070.05713.91
5.3.20.0070.06313.70
5.3.10.0170.06013.65
5.3.00.0100.07013.49
5.2.170.0000.03711.56
5.2.160.0100.05311.56
5.2.150.0070.05311.56
5.2.140.0030.03711.56
5.2.130.0070.03011.56
5.2.120.0000.03711.56
5.2.110.0030.05011.56
5.2.100.0000.06011.56
5.2.90.0030.04011.56
5.2.80.0030.05711.56
5.2.70.0030.03011.56
5.2.60.0030.04711.56
5.2.50.0000.03311.56
5.2.40.0000.03711.56
5.2.30.0030.05011.56
5.2.20.0030.03711.56
5.2.10.0000.03011.56
5.2.00.0030.02711.56
5.1.60.0000.02711.56
5.1.50.0070.02311.56
5.1.40.0070.02011.56
5.1.30.0070.02011.56
5.1.20.0030.02311.56
5.1.10.0000.02711.56
5.1.00.0000.03011.56
5.0.50.0000.02011.56
5.0.40.0000.02011.56
5.0.30.0070.02711.56
5.0.20.0000.04011.56
5.0.10.0000.01711.56
5.0.00.0000.03011.56
4.4.90.0000.03011.56
4.4.80.0000.02011.56
4.4.70.0000.02311.56
4.4.60.0030.01711.56
4.4.50.0100.00711.56
4.4.40.0070.01711.56
4.4.30.0000.01311.56
4.4.20.0000.01711.56
4.4.10.0000.01711.56
4.4.00.0000.02711.56
4.3.110.0000.01711.56
4.3.100.0000.01711.56
4.3.90.0070.01011.56
4.3.80.0000.02311.56
4.3.70.0030.01311.56
4.3.60.0030.01311.56
4.3.50.0000.01311.56
4.3.40.0000.02011.56
4.3.30.0000.01311.56
4.3.20.0000.01311.56
4.3.10.0030.01711.56
4.3.00.0030.01011.56

preferences:
46.74 ms | 401 KiB | 5 Q