3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = ['a' => false]; var_dump(empty($a['b']));

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)
8.3.60.0070.01116.75
8.3.50.0070.00716.10
8.3.40.0160.00018.61
8.3.30.0070.00718.71
8.3.20.0040.00420.16
8.3.10.0030.00621.60
8.3.00.0140.00021.77
8.2.180.0130.01025.92
8.2.170.0150.00022.96
8.2.160.0060.01018.94
8.2.150.0040.00424.18
8.2.140.0000.00824.66
8.2.130.0040.00421.04
8.2.120.0070.00026.35
8.2.110.0030.00722.10
8.2.100.0060.00617.72
8.2.90.0040.00419.03
8.2.80.0050.00317.97
8.2.70.0040.00717.63
8.2.60.0060.00317.93
8.2.50.0050.00318.10
8.2.40.0040.00420.59
8.2.30.0070.00019.28
8.2.20.0080.00018.13
8.2.10.0040.00417.99
8.2.00.0000.00717.96
8.1.280.0090.00625.92
8.1.270.0040.00423.85
8.1.260.0070.00026.35
8.1.250.0070.00028.09
8.1.240.0030.00622.66
8.1.230.0080.00317.77
8.1.220.0050.00317.74
8.1.210.0000.00818.77
8.1.200.0000.00817.13
8.1.190.0030.00617.10
8.1.180.0050.00218.10
8.1.170.0040.00418.43
8.1.160.0040.00419.01
8.1.150.0060.00320.72
8.1.140.0040.00419.46
8.1.130.0030.00318.86
8.1.120.0070.00017.36
8.1.110.0000.00817.32
8.1.100.0000.00717.38
8.1.90.0050.00317.39
8.1.80.0040.00417.38
8.1.70.0000.00717.41
8.1.60.0040.00417.39
8.1.50.0000.00717.50
8.1.40.0040.00417.43
8.1.30.0080.00017.55
8.1.20.0050.00317.57
8.1.10.0080.00017.48
8.1.00.0000.00717.36
8.0.300.0020.00518.77
8.0.290.0040.00416.58
8.0.280.0000.00718.37
8.0.270.0070.00017.23
8.0.260.0040.00416.75
8.0.250.0000.00716.92
8.0.240.0000.00716.93
8.0.230.0070.00016.86
8.0.220.0000.00716.81
8.0.210.0040.00416.73
8.0.200.0000.00716.87
8.0.190.0030.00616.91
8.0.180.0000.00716.76
8.0.170.0000.00716.90
8.0.160.0040.00416.92
8.0.150.0030.00516.65
8.0.140.0000.00716.82
8.0.130.0030.00313.31
8.0.120.0060.00316.69
8.0.110.0040.00416.83
8.0.100.0000.00716.62
8.0.90.0080.00016.65
8.0.80.0060.01116.85
8.0.70.0040.00416.69
8.0.60.0050.00316.73
8.0.50.0040.00416.71
8.0.30.0110.00817.13
8.0.20.0100.00817.40
8.0.10.0080.00016.82
8.0.00.0140.00416.88
7.4.330.0030.00315.55
7.4.320.0060.00016.44
7.4.300.0000.00616.53
7.4.290.0000.00716.43
7.4.280.0000.00716.43
7.4.270.0040.00316.45
7.4.260.0070.00016.37
7.4.250.0000.00716.41
7.4.240.0040.00416.33
7.4.230.0000.00716.53
7.4.220.0060.01216.35
7.4.210.0000.01616.63
7.4.200.0000.00716.27
7.4.160.0100.00716.38
7.4.150.0090.00917.40
7.4.140.0130.00517.86
7.4.130.0100.01316.50
7.4.120.0110.01116.47
7.4.110.0080.00816.45
7.4.100.0100.00616.43
7.4.90.0130.00316.54
7.4.80.0080.00819.39
7.4.70.0130.00316.36
7.4.60.0070.01016.51
7.4.50.0100.00016.36
7.4.40.0070.01416.36
7.4.30.0130.00616.29
7.4.00.0040.01414.79
7.3.330.0000.00512.87
7.3.320.0050.00013.16
7.3.310.0030.00316.02
7.3.300.0040.00416.07
7.3.290.0120.00416.23
7.3.280.0100.00716.21
7.3.270.0130.00617.40
7.3.260.0130.00316.20
7.3.250.0100.00916.27
7.3.240.0080.01116.16
7.3.230.0140.00316.31
7.3.210.0100.00616.28
7.3.200.0000.01616.16
7.3.190.0030.01216.47
7.3.180.0090.00616.15
7.3.170.0100.00516.28
7.3.160.0000.01516.29
7.2.330.0130.00316.45
7.2.320.0080.00816.41
7.2.310.0100.00716.35
7.2.300.0040.01216.38
7.2.290.0100.00716.36
7.2.110.0230.00615.95
7.2.60.0030.01016.98
7.2.00.0000.01319.45
7.1.200.0060.00915.53
7.1.100.0060.00618.02
7.1.70.0060.01917.11
7.1.60.0290.01334.96
7.1.50.0290.01234.56
7.1.40.0260.01034.44
7.1.30.0210.02634.21
7.1.20.0340.00934.23
7.1.10.0060.01516.43
7.1.00.0070.01016.59
7.0.200.0070.01516.56
7.0.190.0060.01216.45
7.0.180.0070.01016.12
7.0.170.0030.01616.12
7.0.160.0130.00415.87
7.0.150.0090.00916.20
7.0.140.0060.01116.05
7.0.130.0100.01016.28
7.0.120.0100.01016.20
7.0.110.0130.00316.37
7.0.100.0100.01016.18
7.0.90.0000.01916.02
7.0.80.0030.01616.12
7.0.70.0030.01716.36
7.0.60.0060.00915.99
7.0.50.0060.00816.39
7.0.40.0000.01916.25
7.0.30.0070.01116.39
7.0.20.0060.01316.42
7.0.10.0090.01116.23
7.0.00.0070.01316.23

preferences:
42.5 ms | 401 KiB | 5 Q