3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Model { } class Metadata { } $model = new Model(); $info = new Metadata(); $info->lastUpdated = 'foo'; $model->_info = $info; var_dump(! (isset($model->_info) && isset($model->_info->lastUpdated2)));

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)
8.3.60.0140.00716.88
8.3.50.0130.00716.51
8.3.40.0100.01018.97
8.3.30.0090.00618.70
8.3.20.0050.00321.08
8.3.10.0070.00023.48
8.3.00.0040.00421.89
8.2.180.0140.00318.29
8.2.170.0000.01418.83
8.2.160.0090.00622.96
8.2.150.0080.00024.18
8.2.140.0040.00424.66
8.2.130.0040.00426.16
8.2.120.0000.00819.90
8.2.110.0030.00620.50
8.2.100.0040.00717.72
8.2.90.0000.00817.74
8.2.80.0040.00418.79
8.2.70.0030.00517.63
8.2.60.0040.00417.50
8.2.50.0030.00618.05
8.2.40.0050.00319.94
8.2.30.0000.00719.50
8.2.20.0050.00317.98
8.2.10.0040.00419.30
8.2.00.0000.00719.27
8.1.280.0140.00025.92
8.1.270.0040.00420.81
8.1.260.0080.00026.35
8.1.250.0000.00828.09
8.1.240.0090.00022.13
8.1.230.0080.00422.66
8.1.220.0040.00418.47
8.1.210.0040.00418.77
8.1.200.0040.00417.43
8.1.190.0040.00417.35
8.1.180.0070.00418.10
8.1.170.0050.00317.62
8.1.160.0040.00418.89
8.1.150.0000.00718.92
8.1.140.0040.00422.55
8.1.130.0000.00720.14
8.1.120.0070.00017.50
8.1.110.0070.00017.28
8.1.100.0000.00817.38
8.1.90.0040.00417.49
8.1.80.0070.00017.38
8.1.70.0000.00717.42
8.1.60.0030.00517.55
8.1.50.0070.00417.44
8.1.40.0050.00317.53
8.1.30.0080.00017.71
8.1.20.0000.00717.66
8.1.10.0040.00417.42
8.1.00.0080.00017.40
8.0.300.0040.00418.77
8.0.290.0040.00416.75
8.0.280.0050.00318.45
8.0.270.0000.00817.88
8.0.260.0000.00719.94
8.0.250.0030.00316.96
8.0.240.0000.00616.81
8.0.230.0000.00716.85
8.0.220.0040.00416.82
8.0.210.0000.00716.75
8.0.200.0030.00316.93
8.0.190.0000.00816.84
8.0.180.0070.00016.80
8.0.170.0000.00916.89
8.0.160.0070.00016.94
8.0.150.0030.00316.89
8.0.140.0000.00716.76
8.0.130.0030.00313.25
8.0.120.0040.00416.84
8.0.110.0000.00816.85
8.0.100.0050.00216.88
8.0.90.0080.00016.76
8.0.80.0110.00516.79
8.0.70.0050.00316.84
8.0.60.0040.00416.71
8.0.50.0040.00416.84
8.0.30.0120.00617.07
8.0.20.0130.00617.04
8.0.10.0030.00717.07
8.0.00.0180.00816.98
7.4.330.0000.00516.77
7.4.320.0030.00316.50
7.4.300.0000.00716.55
7.4.290.0030.00316.49
7.4.280.0060.00616.54
7.4.270.0030.00316.67
7.4.260.0050.00013.29
7.4.250.0050.00216.57
7.4.240.0060.00216.53
7.4.230.0040.00416.50
7.4.220.0030.00316.52
7.4.210.0080.00816.64
7.4.200.0000.00716.50
7.4.140.0090.00917.86
7.4.130.0120.00616.49
7.4.120.0070.01616.45
7.4.110.0090.00816.39
7.4.100.0100.00716.51
7.4.90.0120.00616.45
7.4.80.0130.00319.39
7.4.70.0060.01016.38
7.4.60.0120.01216.38
7.4.50.0070.00716.52
7.4.40.0180.00316.41
7.4.10.0060.00916.23
7.4.00.0100.00616.35
7.3.330.0000.00716.36
7.3.320.0050.00013.29
7.3.310.0000.00716.30
7.3.300.0030.00316.32
7.3.290.0100.00416.27
7.3.280.0040.01516.32
7.3.260.0150.00916.39
7.3.240.0080.00916.37
7.3.230.0110.00616.34
7.3.210.0030.01316.32
7.3.200.0120.00316.26
7.3.190.0150.00616.34
7.3.180.0150.00616.33
7.3.170.0000.01716.52
7.3.160.0170.00016.50
7.3.130.0130.00316.22
7.3.120.0050.01116.45
7.3.110.0100.00716.43
7.3.100.0120.00316.49
7.3.90.0060.00916.47
7.3.80.0000.01716.43
7.3.70.0090.00616.39
7.3.60.0030.01216.35
7.3.50.0100.01016.17
7.3.40.0030.01316.27
7.3.30.0100.00616.54
7.3.20.0150.00316.41
7.3.10.0130.01016.38
7.3.00.0080.00816.19
7.2.330.0140.01116.80
7.2.320.0170.00016.65
7.2.310.0060.01516.66
7.2.300.0090.00916.70
7.2.290.0100.00716.66
7.2.260.0130.00316.51
7.2.250.0060.00916.67
7.2.240.0040.01216.50
7.2.230.0040.01216.73
7.2.220.0090.00616.58
7.2.210.0120.00316.23
7.2.200.0040.01116.70
7.2.190.0060.01016.49
7.2.180.0060.01616.31
7.2.170.0070.01016.39
7.2.160.0080.00816.47
7.2.150.0060.01116.65
7.2.140.0030.01316.62
7.2.130.0120.00416.53
7.2.120.0070.01016.68
7.2.110.0070.01016.66
7.2.100.0030.01316.67
7.2.90.0040.01216.61
7.2.80.0090.00616.66
7.2.70.0160.00316.62
7.2.60.0100.00516.63
7.2.50.0100.00616.16
7.2.40.0060.00916.59
7.2.30.0100.00616.77
7.2.20.0160.00916.70
7.2.10.0040.01516.67
7.2.00.0110.00716.48

preferences:
33.04 ms | 400 KiB | 5 Q