3v4l.org

run code in 500+ PHP versions simultaneously
<?php $obj = new stdClass; $obj->expr = new stdClass; $a = $obj; while ($a->expr instanceof stdClass) { $a->expr->expr = 'test'; $a = $a->expr; } var_dump($obj); var_dump($obj === $a);

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)
8.5.30.0120.00619.64
8.5.20.0060.00220.25
8.5.10.0150.00619.74
8.5.00.0130.00819.99
8.4.180.0130.00919.71
8.4.170.0130.00823.95
8.4.160.0050.00623.10
8.4.150.0060.00516.89
8.4.140.0110.01017.62
8.4.130.0080.00517.72
8.4.120.0100.00720.54
8.4.110.0140.00622.31
8.4.100.0110.00917.68
8.4.90.0090.00418.52
8.4.80.0110.00820.68
8.4.70.0090.00717.90
8.4.60.0140.00618.87
8.4.50.0100.00920.15
8.4.40.0030.00717.40
8.4.30.0090.00022.20
8.4.20.0150.00320.50
8.4.10.0050.00323.98
8.3.300.0120.01018.71
8.3.290.0170.00520.66
8.3.280.0130.00718.45
8.3.270.0120.00816.40
8.3.260.0110.00916.35
8.3.250.0110.00719.11
8.3.240.0080.00516.77
8.3.230.0100.01016.61
8.3.220.0090.00719.01
8.3.210.0090.01016.59
8.3.200.0060.00516.41
8.3.190.0060.00217.13
8.3.180.0090.00916.67
8.3.170.0070.01118.99
8.3.160.0000.01817.37
8.3.150.0030.01618.99
8.3.140.0080.00016.74
8.3.130.0090.00016.82
8.3.120.0100.00020.84
8.3.110.0030.00616.35
8.3.100.0070.00716.78
8.3.90.0040.00426.77
8.3.80.0070.00318.31
8.3.70.0040.01118.18
8.3.60.0180.00318.43
8.3.50.0040.01116.46
8.3.40.0000.01423.79
8.3.30.0100.01020.19
8.3.20.0140.00324.18
8.3.10.0000.00924.66
8.3.00.0150.00326.16
8.2.300.0080.01120.30
8.2.290.0140.00420.26
8.2.280.0090.00918.54
8.2.270.0180.00417.02
8.2.260.0040.01518.04
8.2.250.0030.00618.50
8.2.240.0070.00016.43
8.2.230.0070.00320.94
8.2.220.0000.00824.06
8.2.210.0080.00826.77
8.2.200.0060.00316.38
8.2.190.0040.01118.57
8.2.180.0070.01416.63
8.2.170.0120.00318.95
8.2.160.0070.00722.96
8.2.150.0080.00025.66
8.2.140.0150.00424.66
8.2.130.0030.00626.16
8.2.120.0030.00621.18
8.2.110.0070.00320.56
8.2.100.0070.00317.66
8.2.90.0030.00617.72
8.2.80.0030.00619.16
8.2.70.0090.00917.50
8.2.60.0150.00317.25
8.2.50.0190.00017.13
8.2.40.0160.00217.25
8.2.30.0160.00517.13
8.2.20.0130.00417.38
8.2.10.0170.00017.38
8.2.00.0060.01117.38
8.1.340.0110.00917.30
8.1.330.0100.00823.29
8.1.320.0120.00716.02
8.1.310.0030.00516.76
8.1.300.0030.00618.54
8.1.290.0030.00730.84
8.1.280.0120.00625.92
8.1.270.0000.00824.66
8.1.260.0140.00326.35
8.1.250.0060.00328.09
8.1.240.0060.00323.78
8.1.230.0090.00323.98
8.1.220.0000.00817.74
8.1.210.0040.00418.77
8.1.200.0140.00317.13
8.1.190.0110.00517.25
8.1.180.0170.00016.98
8.1.170.0080.00817.10
8.1.160.0130.00317.25
8.1.150.0150.00316.88
8.1.140.0090.00817.00
8.1.130.0110.00617.10
8.1.120.0040.01216.98
8.1.110.0160.00017.10
8.1.100.0120.00417.35
8.1.90.0090.00617.10
8.1.80.0100.00517.38
8.1.70.0080.00817.21
8.1.60.0140.00517.25
8.1.50.0070.01117.25
8.1.40.0150.00317.50
8.1.30.0140.00317.13
8.1.20.0120.00617.25
8.1.10.0140.00417.22
8.1.00.0060.01217.38
8.0.300.0070.00020.13
8.0.290.0160.00016.58
8.0.280.0080.00816.58
8.0.270.0110.00516.58
8.0.260.0150.00316.58
8.0.250.0160.00016.58
8.0.240.0180.00016.60
8.0.230.0110.01116.63
8.0.220.0130.00516.58
8.0.210.0160.00016.58
8.0.200.0110.00616.63
8.0.190.0140.00216.58
8.0.180.0090.00916.61
8.0.170.0160.00016.58
8.0.160.0080.00816.58
8.0.150.0140.00316.63
8.0.140.0130.00316.63
8.0.130.0120.00516.58
8.0.120.0170.00016.58
8.0.110.0130.00316.58
8.0.100.0110.00616.58
8.0.90.0120.00416.58
8.0.80.0120.00416.58
8.0.70.0120.00316.63
8.0.60.0100.00516.58
8.0.50.0070.00916.58
8.0.30.0140.00416.58
8.0.20.0120.00416.58
8.0.10.0110.00616.71

preferences:
56.28 ms | 1115 KiB | 5 Q