3v4l.org

run code in 300+ PHP versions simultaneously
<?php $object = new stdClass; var_dump(isset($object['a']['b']));

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)
8.3.70.0090.00916.88
8.3.60.0110.00416.63
8.3.50.0100.00320.03
8.3.40.0070.00720.26
8.3.30.0070.00718.70
8.3.20.0000.00724.18
8.3.10.0000.00824.66
8.3.00.0000.00826.16
8.2.190.0140.00718.66
8.2.180.0030.01025.92
8.2.170.0090.00622.96
8.2.160.0130.00322.96
8.2.150.0000.00925.66
8.2.140.0040.00424.66
8.2.130.0040.00426.16
8.2.120.0070.00026.16
8.2.110.0090.00021.04
8.2.100.0000.01218.03
8.2.90.0090.00019.22
8.2.80.0060.00317.97
8.2.70.0040.00417.75
8.2.60.0070.00017.93
8.2.50.0040.00418.07
8.2.40.0040.00419.97
8.2.30.0040.00418.06
8.2.20.0000.00720.53
8.2.10.0020.00518.13
8.2.00.0080.00019.24
8.1.280.0110.00325.92
8.1.270.0080.00024.66
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0140.00419.15
8.1.230.0070.00417.70
8.1.220.0080.00017.79
8.1.210.0000.00818.77
8.1.200.0030.00717.35
8.1.190.0000.00717.53
8.1.180.0030.00518.89
8.1.170.0050.00318.48
8.1.160.0000.00718.94
8.1.150.0000.00718.43
8.1.140.0030.00517.39
8.1.130.0050.00217.43
8.1.120.0100.00517.46
8.1.110.0120.00317.30
8.1.100.0120.00317.38
8.1.90.0120.00217.39
8.1.80.0110.00417.32
8.1.70.0000.01517.43
8.1.60.0130.00417.39
8.1.50.0170.00017.61
8.1.40.0110.00617.57
8.1.30.0070.01017.64
8.1.20.0130.00317.59
8.1.10.0110.00617.58
8.1.00.0160.00017.47
8.0.300.0000.00718.77
8.0.290.0000.00716.75
8.0.280.0030.00318.38
8.0.270.0000.00817.98
8.0.260.0050.00216.74
8.0.250.0100.00316.88
8.0.240.0140.00016.70
8.0.230.0130.00016.70
8.0.220.0050.01016.81
8.0.210.0140.00016.67
8.0.200.0000.01416.75
8.0.190.0090.00416.87
8.0.180.0110.00216.77
8.0.170.0000.01516.81
8.0.160.0070.00716.82
8.0.150.0150.00016.66
8.0.140.0100.00416.63
8.0.130.0110.00416.67
8.0.120.0050.00916.63
8.0.110.0130.00016.75
8.0.100.0120.00216.64
8.0.90.0070.00716.67
8.0.80.0100.00416.71
8.0.70.0000.01416.78
8.0.60.0090.00416.74
8.0.50.0130.00016.73
8.0.30.0090.00416.68
8.0.20.0000.01416.81
8.0.10.0070.00716.75
7.4.330.0030.00314.29
7.4.320.0090.00616.34
7.4.300.0070.00716.33
7.4.290.0160.00016.46
7.4.280.0150.00016.46
7.4.270.0070.00716.40
7.4.260.0100.00516.40
7.4.250.0160.00016.30
7.4.240.0100.00516.41
7.4.230.0080.00816.41
7.4.220.0110.00216.34
7.4.210.0110.00316.28
7.4.200.0070.00716.45
7.4.190.0140.00016.53
7.4.180.0090.00416.35
7.4.160.0100.00316.50
7.4.150.0090.00416.43
7.4.140.0110.00316.27
7.4.130.0100.00316.33
7.4.120.0000.01316.25
7.4.110.0000.01316.35
7.4.100.0070.00716.45
7.4.90.0100.00316.40
7.4.80.0130.00016.34
7.4.70.0090.00316.35
7.4.60.0070.00716.23
7.4.50.0090.00316.33
7.4.40.0040.00916.26
7.4.30.0000.01316.28
7.4.20.0100.00416.32
7.4.10.0100.00316.45
7.4.00.0130.00016.22

preferences:
19.22 ms | 401 KiB | 5 Q