3v4l.org

run code in 300+ PHP versions simultaneously
<?php $o = (object)array(42); var_dump(array_key_exists(0, $o), property_exists($o,'0'), isset($o->{0})); var_dump($o->{0}); $o->{0} = 37; var_dump(array_key_exists(0, $o), property_exists($o,'0'), isset($o->{0}));

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)
8.3.60.0110.00416.75
8.3.50.0100.01121.05
8.3.40.0080.00818.80
8.3.30.0130.00318.66
8.3.20.0030.01020.15
8.3.10.0040.00423.66
8.3.00.0000.00823.69
8.2.180.0120.00318.66
8.2.170.0060.00922.96
8.2.160.0070.00720.44
8.2.150.0000.00824.18
8.2.140.0000.00824.66
8.2.130.0080.00021.00
8.2.120.0080.00026.35
8.2.110.0030.00622.12
8.2.100.0060.00617.79
8.2.90.0000.00819.22
8.2.80.0030.00517.97
8.2.70.0060.00317.63
8.2.60.0000.00818.00
8.2.50.0050.00318.07
8.2.40.0060.00322.15
8.2.30.0030.00620.54
8.2.20.0040.00417.72
8.2.10.0030.00717.93
8.2.00.0040.00417.91
8.1.280.0150.00325.92
8.1.270.0030.00623.97
8.1.260.0000.00728.09
8.1.250.0040.00428.09
8.1.240.0030.00623.95
8.1.230.0000.01119.02
8.1.220.0050.00317.74
8.1.210.0080.00018.77
8.1.200.0000.01017.23
8.1.190.0040.00417.25
8.1.180.0050.00318.10
8.1.170.0040.00418.57
8.1.160.0040.00420.73
8.1.150.0000.00718.81
8.1.140.0050.00319.38
8.1.130.0070.00017.38
8.1.120.0000.00717.40
8.1.110.0000.00717.27
8.1.100.0040.00417.34
8.1.90.0040.00417.39
8.1.80.0030.00617.44
8.1.70.0000.00717.39
8.1.60.0000.01017.42
8.1.50.0030.00617.42
8.1.40.0040.00417.41
8.1.30.0030.00517.54
8.1.20.0050.00217.65
8.1.10.0040.00417.56
8.1.00.0060.00317.51
8.0.300.0000.00718.77
8.0.290.0000.00716.63
8.0.280.0040.00418.29
8.0.270.0030.00317.13
8.0.260.0040.00416.72
8.0.250.0030.00316.96
8.0.240.0040.00416.86
8.0.230.0030.00316.88
8.0.220.0030.00316.82
8.0.210.0070.00016.84
8.0.200.0030.00316.98
8.0.190.0000.00816.82
8.0.180.0040.00416.94
8.0.170.0000.00916.90
8.0.160.0030.00316.77
8.0.150.0040.00416.81
8.0.140.0000.00716.73
8.0.130.0040.00413.24
8.0.120.0040.00416.88
8.0.110.0040.00416.77
8.0.100.0000.00816.71
8.0.90.0040.00416.92
8.0.80.0060.01516.88
8.0.70.0000.00816.95
8.0.60.0050.00316.84
8.0.50.0060.00316.66
8.0.30.0120.00616.93
8.0.20.0080.01117.40
8.0.10.0000.00717.07
8.0.00.0070.01016.57
7.4.330.0020.00216.70
7.4.320.0000.00616.49
7.4.300.0000.00616.44
7.4.290.0070.00016.40
7.4.280.0030.00616.49
7.4.270.0030.00316.42
7.4.260.0030.00316.52
7.4.250.0040.00416.59
7.4.240.0050.00216.47
7.4.230.0000.00716.49
7.4.220.0220.00016.49
7.4.210.0070.01016.68
7.4.200.0000.00716.52
7.4.160.0080.00816.59
7.4.150.0060.01317.40
7.4.140.0090.01417.86
7.4.130.0170.00116.55
7.4.120.0130.00916.57
7.4.110.0180.00616.64
7.4.100.0080.01116.50
7.4.90.0100.00716.43
7.4.80.0150.00919.39
7.4.70.0030.01616.51
7.4.60.0060.00916.59
7.4.50.0060.00616.64
7.4.40.0060.01116.28
7.4.30.0130.00416.56
7.4.00.0070.00715.18
7.3.330.0060.00013.23
7.3.320.0060.00013.03
7.3.310.0030.00316.26
7.3.300.0030.00316.28
7.3.290.0100.00816.28
7.3.280.0090.00916.33
7.3.270.0150.00417.40
7.3.260.0060.00916.30
7.3.250.0090.00816.36
7.3.240.0070.01116.40
7.3.230.0070.01016.39
7.3.210.0030.01416.23
7.3.200.0090.00916.25
7.3.190.0210.00016.54
7.3.180.0070.01016.25
7.3.170.0040.01816.32
7.3.160.0120.00416.32
7.2.330.0100.00716.63
7.2.320.0060.01016.42
7.2.310.0100.01316.77
7.2.300.0100.00716.44
7.2.290.0100.00616.78
7.2.60.0100.00617.12
7.2.00.0090.00319.52
7.1.200.0030.00715.92
7.1.100.0000.01318.29
7.1.70.0040.00417.03
7.1.60.0130.01019.05
7.1.50.0090.01316.93
7.1.00.0070.07322.42
7.0.200.0270.00314.72
7.0.60.0100.05719.91
7.0.50.0000.06017.77
7.0.40.0070.09020.30
7.0.30.1630.04020.09
7.0.20.0400.06720.16
7.0.10.0100.04720.18
7.0.00.0070.05720.29
5.6.280.0070.06721.12
5.6.210.0130.05720.72
5.6.200.0070.04018.24
5.6.190.0030.04320.61
5.6.180.0300.08020.61
5.6.170.0300.05720.71
5.6.160.0030.04320.44
5.6.150.0070.08718.17
5.6.140.0030.04318.09
5.6.130.0030.08018.21
5.6.120.0030.06021.01
5.6.110.0100.08020.96
5.6.100.0170.06020.97
5.6.90.0130.07721.03
5.6.80.0130.06720.50
5.5.350.4400.03720.46
5.5.340.0070.03718.02
5.5.330.0000.06320.38
5.5.320.0270.06720.20
5.5.310.0100.04720.41
5.5.300.0100.04718.07
5.5.290.0130.06017.92
5.5.280.0030.04320.86
5.5.270.0070.04720.86
5.5.260.0030.04320.64
5.5.250.0070.08020.68
5.5.240.0170.07320.36

preferences:
45.17 ms | 401 KiB | 5 Q