3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = ['id' => null]; echo(empty($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)
8.3.60.0090.00616.63
8.3.50.0120.00316.28
8.3.40.0040.01118.66
8.3.30.0060.00918.59
8.3.20.0080.00020.16
8.3.10.0040.00423.55
8.3.00.0040.00417.66
8.2.180.0100.00716.38
8.2.170.0070.00722.96
8.2.160.0100.00320.52
8.2.150.0080.00024.18
8.2.140.0080.00024.66
8.2.130.0070.00022.08
8.2.120.0000.00726.35
8.2.110.0060.00320.47
8.2.100.0110.00017.91
8.2.90.0080.00019.22
8.2.80.0050.00317.97
8.2.70.0060.00317.50
8.2.60.0040.00418.00
8.2.50.0090.00018.10
8.2.40.0040.00422.15
8.2.30.0000.00821.09
8.2.20.0000.00717.93
8.2.10.0050.00218.02
8.2.00.0050.00217.89
8.1.280.0000.01425.92
8.1.270.0040.00421.98
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0090.00022.50
8.1.230.0040.00719.21
8.1.220.0040.00417.74
8.1.210.0030.00518.77
8.1.200.0060.00317.23
8.1.190.0040.00417.10
8.1.180.0040.00418.10
8.1.170.0000.00818.40
8.1.160.0000.00719.02
8.1.150.0070.00020.53
8.1.140.0050.00219.43
8.1.130.0000.00718.70
8.1.120.0070.00017.46
8.1.110.0000.00817.43
8.1.100.0080.00017.27
8.1.90.0030.00317.43
8.1.80.0040.00417.38
8.1.70.0030.00317.43
8.1.60.0050.00517.46
8.1.50.0050.00317.40
8.1.40.0000.00817.45
8.1.30.0000.00717.43
8.1.20.0090.00017.41
8.1.10.0060.00317.39
8.1.00.0000.00817.41
8.0.300.0040.00418.77
8.0.290.0040.00416.75
8.0.280.0000.00718.43
8.0.270.0090.00017.12
8.0.260.0070.00216.70
8.0.250.0070.00016.98
8.0.240.0030.00316.84
8.0.230.0030.00616.89
8.0.220.0040.00416.84
8.0.210.0000.00816.71
8.0.200.0060.00016.92
8.0.190.0050.00316.75
8.0.180.0040.00416.70
8.0.170.0040.00416.90
8.0.160.0030.00516.71
8.0.150.0070.00016.80
8.0.140.0050.00316.77
8.0.130.0030.00313.30
8.0.120.0000.00716.78
8.0.110.0040.00416.81
8.0.100.0000.00716.82
8.0.90.0000.00716.73
8.0.80.0030.02016.81
8.0.70.0040.00416.63
8.0.60.0000.00816.86
8.0.50.0040.00416.76
8.0.30.0100.00816.78
8.0.20.0100.00917.40
8.0.10.0000.00716.94
8.0.00.0160.00016.62
7.4.330.0030.00315.55
7.4.320.0000.00716.51
7.4.300.0000.00616.53
7.4.290.0000.00716.42
7.4.280.0040.00416.34
7.4.270.0040.00416.57
7.4.260.0030.00313.19
7.4.250.0030.00316.43
7.4.240.0000.00616.54
7.4.230.0040.00416.55
7.4.220.0100.00716.50
7.4.210.0030.01016.58
7.4.200.0000.00716.34
7.4.160.0050.01116.42
7.4.150.0070.01017.40
7.4.140.0120.00917.86
7.4.130.0120.00616.34
7.4.120.0110.00916.34
7.4.110.0070.01016.43
7.4.100.0090.00916.41
7.4.90.0060.01016.44
7.4.80.0130.00719.39
7.4.70.0100.00616.39
7.4.60.0030.01316.30
7.4.50.0000.01116.27
7.4.40.0190.00516.14
7.4.30.0130.00316.36
7.4.00.0080.00414.73
7.3.330.0050.00012.96
7.3.320.0030.00312.89
7.3.310.0030.00316.00
7.3.300.0030.00316.15
7.3.290.0030.00316.11
7.3.280.0060.01116.13
7.3.270.0160.00017.40
7.3.260.0090.00716.33
7.3.250.0090.00816.41
7.3.240.0090.00716.36
7.3.230.0150.00416.20
7.3.210.0130.00316.02
7.3.200.0130.00316.26
7.3.190.0190.00616.32
7.3.180.0080.00816.11
7.3.170.0090.00616.29
7.3.160.0080.00816.30
7.2.330.0170.00016.24
7.2.320.0110.00716.57
7.2.310.0070.01016.46
7.2.300.0110.00916.57
7.2.290.0170.00316.66
7.2.110.0110.01116.43
7.2.60.0060.00616.78
7.2.00.0040.01119.06
7.1.200.0060.00615.57
7.1.100.0060.00617.89
7.1.70.0900.01315.19
7.1.60.1100.01333.10
7.1.50.1630.01732.65
7.1.40.1870.00732.45
7.1.30.1670.00732.49
7.1.20.1300.01332.80
7.1.10.1770.00714.29
7.1.00.1100.01014.72
7.0.200.1670.01014.72
7.0.190.2130.01014.77
7.0.180.1030.01714.29
7.0.170.1630.00714.19
7.0.160.1770.01013.95
7.0.150.1470.01714.45
7.0.140.1330.00714.40
7.0.130.1030.01314.46
7.0.120.0930.00714.72
7.0.110.1400.01014.39
7.0.100.0930.00714.38
7.0.90.0900.01014.37
7.0.80.1400.01314.29
7.0.70.1230.00714.26
7.0.60.1370.01314.02
7.0.50.0970.01314.62
7.0.40.1370.01014.38
7.0.30.1330.01714.57
7.0.20.1500.00314.38
7.0.10.1270.01314.36
7.0.00.1300.01014.52

preferences:
43.86 ms | 400 KiB | 5 Q