3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = new StdClass; $b = null; var_dump(!$a); var_dump(!$b instanceof StdClass); var_dump(!$a instanceof StdClass); var_dump(!($b instanceof StdClass)); var_dump(!($a instanceof StdClass)); var_dump($b instanceof StdClass); var_dump($a instanceof StdClass);

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)
8.3.60.0070.01116.63
8.3.50.0040.01116.45
8.3.40.0080.00818.67
8.3.30.0040.01118.72
8.3.20.0040.00420.34
8.3.10.0050.00321.83
8.3.00.0090.00019.29
8.2.180.0070.00718.16
8.2.170.0140.00022.96
8.2.160.0130.00620.29
8.2.150.0080.00024.18
8.2.140.0040.00424.66
8.2.130.0000.00721.13
8.2.120.0030.00626.35
8.2.110.0030.00619.27
8.2.100.0110.00018.22
8.2.90.0040.00419.22
8.2.80.0040.00418.03
8.2.70.0040.00717.25
8.2.60.0040.00418.03
8.2.50.0040.00418.10
8.2.40.0050.00320.38
8.2.30.0000.00721.12
8.2.20.0040.00418.02
8.2.10.0040.00418.19
8.2.00.0030.00618.17
8.1.280.0070.00725.92
8.1.270.0040.00423.71
8.1.260.0070.00026.35
8.1.250.0040.00428.09
8.1.240.0060.00323.97
8.1.230.0080.00317.45
8.1.220.0030.00617.91
8.1.210.0060.00318.77
8.1.200.0060.00316.99
8.1.190.0030.00517.36
8.1.180.0050.00318.10
8.1.170.0030.00518.47
8.1.160.0030.00519.09
8.1.150.0040.00418.95
8.1.140.0040.00419.50
8.1.130.0000.00818.80
8.1.120.0030.00517.44
8.1.110.0040.00417.53
8.1.100.0040.00417.48
8.1.90.0040.00417.52
8.1.80.0040.00417.44
8.1.70.0050.00217.46
8.1.60.0030.00517.61
8.1.50.0020.00517.44
8.1.40.0040.00417.53
8.1.30.0050.00217.59
8.1.20.0080.00017.68
8.1.10.0040.00417.57
8.1.00.0040.00417.45
8.0.300.0040.00418.77
8.0.290.0070.00016.63
8.0.280.0030.00318.36
8.0.270.0030.00317.31
8.0.260.0030.00516.85
8.0.250.0030.00316.98
8.0.240.0000.00816.86
8.0.230.0030.00416.86
8.0.220.0000.00716.89
8.0.210.0000.00716.92
8.0.200.0030.00316.99
8.0.190.0080.00017.00
8.0.180.0000.00816.81
8.0.170.0070.00016.83
8.0.160.0030.00316.89
8.0.150.0040.00416.86
8.0.140.0000.00716.88
8.0.130.0050.00013.32
8.0.120.0070.00016.89
8.0.110.0070.00016.90
8.0.100.0040.00416.79
8.0.90.0000.00716.76
8.0.80.0060.01016.94
8.0.70.0030.00516.92
8.0.60.0000.00816.94
8.0.50.0070.00016.86
8.0.30.0050.01317.18
8.0.20.0100.00817.40
8.0.10.0040.00416.90
8.0.00.0090.00916.72
7.4.330.0000.00515.55
7.4.320.0030.00316.63
7.4.300.0030.00316.50
7.4.290.0000.01116.49
7.4.280.0050.00316.42
7.4.270.0060.00016.53
7.4.260.0030.00313.32
7.4.250.0030.00516.62
7.4.240.0000.00716.59
7.4.230.0020.00516.51
7.4.220.0150.00316.57
7.4.210.0080.00716.63
7.4.200.0000.00716.42
7.4.160.0080.00816.42
7.4.150.0150.04017.40
7.4.140.0090.01417.86
7.4.130.0030.02416.50
7.4.120.0070.01216.38
7.4.110.0120.00316.65
7.4.100.0060.01216.41
7.4.90.0120.00416.30
7.4.80.0070.01519.39
7.4.70.0130.00716.47
7.4.60.0130.01216.42
7.4.50.0070.00716.38
7.4.40.0170.00016.28
7.4.30.0100.00716.52
7.4.00.0070.01014.88
7.3.330.0000.00613.16
7.3.320.0020.00213.20
7.3.310.0000.00716.31
7.3.300.0030.00316.12
7.3.290.0090.00616.18
7.3.280.0090.00616.24
7.3.270.0110.00617.40
7.3.260.0110.00616.43
7.3.250.0070.01216.40
7.3.240.0110.00616.51
7.3.230.0030.01316.42
7.3.210.0120.00616.37
7.3.200.0190.00016.61
7.3.190.0070.01016.52
7.3.180.0110.01116.47
7.3.170.0080.00816.43
7.3.160.0100.00716.49
7.2.330.0100.01016.72
7.2.320.0110.00716.65
7.2.310.0060.01116.28
7.2.300.0030.01316.64
7.2.290.0120.00616.64
7.2.60.0070.00716.82
7.2.00.0040.01119.00
7.1.200.0080.00415.57
7.1.100.0060.00618.00
7.1.70.0030.01617.30
7.1.60.0310.00634.83
7.1.50.0350.00934.84
7.1.40.0270.00734.30
7.1.30.0370.01734.51
7.1.20.0250.01534.56
7.1.10.0040.01116.61
7.1.00.0070.01016.71
7.0.200.0030.01416.64
7.0.190.0130.00416.59
7.0.180.0070.01016.40
7.0.170.0080.01316.34
7.0.160.0090.00716.25
7.0.150.0000.01516.36
7.0.140.0090.00716.26
7.0.130.0130.00616.35
7.0.120.0090.00616.50
7.0.110.0060.01516.05
7.0.100.0000.01416.21
7.0.90.0140.00416.34
7.0.80.0070.01016.23
7.0.70.0030.01716.21
7.0.60.0090.00616.22
7.0.50.0040.01216.27
7.0.40.0110.00816.51
7.0.30.0060.01016.52
7.0.20.0080.01116.58
7.0.10.0120.00616.45
7.0.00.0030.01216.30

preferences:
60.13 ms | 400 KiB | 5 Q