3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = ['a' => 0]; var_dump(empty($a['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)
8.3.60.0140.00716.38
8.3.50.0170.00316.53
8.3.40.0070.00718.71
8.3.30.0080.00818.41
8.3.20.0040.00420.21
8.3.10.0090.00023.52
8.3.00.0040.00419.56
8.2.180.0140.00416.38
8.2.170.0070.00722.96
8.2.160.0140.00018.71
8.2.150.0040.00425.66
8.2.140.0060.00324.66
8.2.130.0040.00419.05
8.2.120.0040.00426.35
8.2.110.0060.00320.43
8.2.100.0030.00917.72
8.2.90.0050.00319.28
8.2.80.0080.00017.97
8.2.70.0060.00317.50
8.2.60.0040.00417.80
8.2.50.0000.00818.10
8.2.40.0040.00420.55
8.2.30.0040.00419.20
8.2.20.0050.00217.93
8.2.10.0070.00018.05
8.2.00.0070.00017.89
8.1.280.0120.00325.92
8.1.270.0000.00722.18
8.1.260.0040.00426.35
8.1.250.0070.00028.09
8.1.240.0060.00320.69
8.1.230.0090.00319.17
8.1.220.0090.00017.74
8.1.210.0000.00818.77
8.1.200.0060.00317.23
8.1.190.0080.00017.22
8.1.180.0040.00418.10
8.1.170.0080.00018.59
8.1.160.0050.00318.92
8.1.150.0070.00318.80
8.1.140.0040.00417.38
8.1.130.0040.00418.69
8.1.120.0000.00817.43
8.1.110.0040.00417.36
8.1.100.0080.00017.34
8.1.90.0000.00717.41
8.1.80.0040.00417.45
8.1.70.0000.00817.40
8.1.60.0060.00317.41
8.1.50.0030.00617.43
8.1.40.0070.00017.45
8.1.30.0040.00417.56
8.1.20.0040.00417.41
8.1.10.0070.00017.39
8.1.00.0030.00517.29
8.0.300.0040.00418.77
8.0.290.0070.00016.58
8.0.280.0030.00318.25
8.0.270.0040.00417.23
8.0.260.0000.00716.71
8.0.250.0030.00516.92
8.0.240.0000.00916.87
8.0.230.0000.00716.79
8.0.220.0030.00316.88
8.0.210.0030.00416.71
8.0.200.0000.00616.84
8.0.190.0030.00616.94
8.0.180.0050.00216.86
8.0.170.0040.00416.93
8.0.160.0070.00016.85
8.0.150.0030.00316.80
8.0.140.0000.00716.72
8.0.130.0050.00013.18
8.0.120.0000.00816.83
8.0.110.0070.00016.77
8.0.100.0040.00416.69
8.0.90.0000.00816.93
8.0.80.0110.00416.87
8.0.70.0070.00016.68
8.0.60.0040.00416.65
8.0.50.0040.00416.77
8.0.30.0060.01116.96
8.0.20.0100.00917.40
8.0.10.0050.00316.80
8.0.00.0150.01016.61
7.4.330.0040.00415.55
7.4.320.0030.00316.48
7.4.300.0060.00016.57
7.4.290.0040.00416.42
7.4.280.0000.00716.37
7.4.270.0030.00416.34
7.4.260.0030.00616.55
7.4.250.0000.00716.25
7.4.240.0030.00316.39
7.4.230.0030.00316.36
7.4.220.0080.00616.44
7.4.210.0120.00516.55
7.4.200.0030.00516.61
7.4.160.0100.00716.45
7.4.150.0090.00917.40
7.4.140.0160.00217.86
7.4.130.0120.00916.42
7.4.120.0100.01116.39
7.3.330.0060.00013.04
7.3.320.0050.00012.99
7.3.310.0030.00316.19
7.3.300.0030.00316.23
7.3.290.0030.01416.15
7.3.280.0080.00916.19
7.3.270.0040.01517.40
7.3.260.0160.00616.30
7.3.250.0090.01116.33
7.3.240.0110.00816.25
7.1.70.0440.00315.06

preferences:
42.31 ms | 401 KiB | 5 Q