3v4l.org

run code in 300+ PHP versions simultaneously
<?php $x = new stdClass(); $x->a = 1; $y = ['a'=>1]; var_dump(isset($x->a->b->c)); var_dump(isset($y['a']['b']['c'])); var_dump(empty($x->a->b->c));

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)
8.3.60.0000.01518.56
8.3.50.0070.01118.08
8.3.40.0140.00418.88
8.3.30.0150.00018.71
8.3.20.0050.00319.25
8.3.10.0000.00823.59
8.3.00.0000.00720.74
8.2.180.0120.00918.29
8.2.170.0120.00322.96
8.2.160.0150.00321.07
8.2.150.0040.00424.18
8.2.140.0060.00324.66
8.2.130.0000.00717.97
8.2.120.0040.00426.35
8.2.110.0060.00319.30
8.2.100.0130.00019.45
8.2.90.0040.00417.63
8.2.80.0040.00417.97
8.2.70.0060.00317.80
8.2.60.0040.00418.09
8.2.50.0040.00418.10
8.2.40.0050.00219.05
8.2.30.0040.00419.14
8.2.20.0070.00018.16
8.2.10.0040.00317.97
8.2.00.0000.00817.57
8.1.280.0120.00325.92
8.1.270.0040.00419.00
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0060.00322.26
8.1.230.0080.00322.11
8.1.220.0030.00517.74
8.1.210.0050.00318.77
8.1.200.0060.00317.35
8.1.190.0040.00417.13
8.1.180.0000.00818.10
8.1.170.0000.00818.32
8.1.160.0050.00218.82
8.1.150.0040.00418.76
8.1.140.0020.00522.12
8.1.130.0050.00320.04
8.1.120.0040.00417.30
8.1.110.0000.00817.37
8.1.100.0000.00717.41
8.1.90.0090.00317.41
8.1.80.0000.00717.39
8.1.70.0000.00717.44
8.1.60.0030.00617.52
8.1.50.0040.00717.43
8.1.40.0000.00917.41
8.1.30.0080.00017.65
8.1.20.0040.00417.58
8.1.10.0000.00717.43
8.1.00.0040.00417.52
8.0.300.0050.00318.77
8.0.290.0030.00516.58
8.0.280.0040.00418.28
8.0.270.0000.00717.18
8.0.260.0030.00318.43
8.0.250.0040.00416.78
8.0.240.0040.00416.86
8.0.230.0020.00516.87
8.0.220.0090.00016.82
8.0.210.0040.00416.68
8.0.200.0040.00416.84
8.0.190.0000.00716.79
8.0.180.0030.00516.75
8.0.170.0060.00316.84
8.0.160.0030.00316.79
8.0.150.0070.00016.75
8.0.140.0070.00016.70
8.0.130.0030.00313.30
8.0.120.0030.00516.76
8.0.110.0000.00716.78
8.0.100.0080.00016.80
8.0.90.0000.00716.62
8.0.80.0050.01116.76
8.0.70.0080.00016.70
8.0.60.0040.00416.79
8.0.50.0000.00716.84
8.0.30.0080.01316.87
8.0.20.0080.01317.40
8.0.10.0000.00817.00
8.0.00.0120.00616.59
7.4.330.0000.00515.55
7.4.320.0040.00416.49
7.4.300.0030.00316.41
7.4.290.0070.00016.48
7.4.280.0060.00316.63
7.4.270.0040.00416.60
7.4.260.0040.00416.40
7.4.250.0030.00316.56
7.4.240.0040.00416.49
7.4.230.0030.00316.54
7.4.220.0040.00416.61
7.4.210.0070.00916.53
7.4.200.0030.00316.50
7.4.160.0110.00616.41
7.4.140.0120.00817.86
7.4.130.0130.00616.71
7.4.120.0110.00816.51
7.4.110.0110.00516.59
7.4.100.0120.00416.46
7.4.90.0070.01016.39
7.4.80.0060.01019.39
7.4.70.0070.01116.57
7.4.60.0130.00316.48
7.4.50.0100.00216.51
7.4.40.0080.01516.55
7.4.00.0090.00314.82
7.3.330.0060.00013.19
7.3.320.0050.00013.23
7.3.310.0030.00616.39
7.3.300.0070.00016.31
7.3.290.0000.00716.40
7.3.280.0070.01016.36
7.3.260.0080.01016.35
7.3.240.0110.00816.33
7.3.230.0030.01516.27
7.3.210.0050.01316.46
7.3.200.0130.00316.36
7.3.190.0150.00416.41
7.3.180.0100.01316.54
7.3.170.0170.00016.25
7.3.160.0030.01216.36
7.3.10.0070.00716.54
7.3.00.0030.00816.53
7.2.330.0060.01516.80
7.2.320.0160.00716.58
7.2.310.0090.00616.69
7.2.300.0070.01016.45
7.2.290.0100.00716.63
7.2.130.0050.00716.71
7.2.120.0080.00516.94
7.2.110.0120.01216.05
7.2.100.0130.00816.00
7.2.90.0130.00616.21
7.2.80.0110.00716.24
7.2.70.0140.00716.19
7.2.60.0100.01016.23
7.2.50.0110.00516.16
7.2.40.0120.00816.29
7.2.30.0110.00716.31
7.2.20.0100.01016.26
7.2.10.0130.00816.31
7.2.00.0130.00616.25
7.1.250.0060.00815.56
7.1.240.0040.00415.79
7.1.230.0180.00714.74
7.1.220.0190.00814.68
7.1.210.0160.00914.51
7.1.200.0160.00414.62
7.1.190.0140.00214.64
7.1.180.0100.00814.63
7.1.170.0120.01014.63
7.1.160.0140.00614.64
7.1.150.0110.01014.70
7.1.140.0150.00614.89
7.1.130.0170.00614.78
7.1.120.0110.00914.76
7.1.110.0190.00514.90
7.1.100.0220.00314.75
7.1.90.0200.00814.81
7.1.80.0120.00914.75
7.1.70.0200.00514.95
7.1.60.0300.00923.77
7.1.50.0280.01023.64
7.1.40.0360.01123.60
7.1.30.0250.01123.64
7.1.20.0250.00823.77
7.1.10.0220.00614.92
7.1.00.0160.00414.77
7.0.330.0000.01715.54
5.6.380.0120.00614.54

preferences:
57.86 ms | 401 KiB | 5 Q