3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = ['id' => null]; $b = empty($a); var_dump($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)
8.3.70.0110.00418.30
8.3.60.0090.00616.25
8.3.50.0140.00016.15
8.3.40.0060.00918.67
8.3.30.0120.00918.34
8.3.20.0060.00320.31
8.3.10.0030.00623.57
8.3.00.0040.00417.47
8.2.180.0070.01016.50
8.2.170.0110.00422.96
8.2.160.0030.01020.47
8.2.150.0000.00824.18
8.2.140.0040.00424.66
8.2.130.0040.00422.32
8.2.120.0040.00426.35
8.2.110.0030.00720.57
8.2.100.0070.00417.78
8.2.90.0000.00719.17
8.2.80.0000.00817.97
8.2.70.0080.00017.38
8.2.60.0090.00017.93
8.2.50.0030.00618.10
8.2.40.0050.00322.29
8.2.30.0040.00420.85
8.2.20.0040.00418.04
8.2.10.0050.00217.97
8.2.00.0000.00817.96
8.1.280.0070.00725.92
8.1.270.0050.00322.07
8.1.260.0080.00026.35
8.1.250.0040.00428.09
8.1.240.0000.00922.62
8.1.230.0070.00419.21
8.1.220.0050.00317.74
8.1.210.0000.00918.77
8.1.200.0040.00417.13
8.1.190.0030.00517.11
8.1.180.0050.00218.10
8.1.170.0080.00018.51
8.1.160.0040.00419.00
8.1.150.0080.00020.48
8.1.140.0000.00819.37
8.1.130.0030.00318.73
8.1.120.0050.00317.30
8.1.110.0040.00417.36
8.1.100.0050.00317.29
8.1.90.0000.00717.40
8.1.80.0040.00417.39
8.1.70.0070.00017.21
8.1.60.0040.00417.54
8.1.50.0000.00717.35
8.1.40.0040.00417.33
8.1.30.0020.00517.62
8.1.20.0040.00417.63
8.1.10.0040.00417.46
8.1.00.0060.00317.23
8.0.300.0000.00818.77
8.0.290.0040.00416.63
8.0.280.0070.00018.36
8.0.270.0000.00917.17
8.0.260.0050.00216.62
8.0.250.0030.00316.77
8.0.240.0000.00716.89
8.0.230.0060.00516.90
8.0.220.0040.00316.78
8.0.210.0030.00316.83
8.0.200.0000.00616.88
8.0.190.0070.00016.76
8.0.180.0040.00416.68
8.0.170.0040.00416.90
8.0.160.0000.00716.79
8.0.150.0000.00716.73
8.0.140.0040.00416.79
8.0.130.0000.00613.25
8.0.120.0070.00016.80
8.0.110.0000.00716.72
8.0.100.0000.00716.80
8.0.90.0040.00416.75
8.0.80.0080.00816.69
8.0.70.0040.00416.60
8.0.60.0050.00316.77
8.0.50.0040.00416.80
8.0.30.0140.00217.13
8.0.20.0090.00917.40
8.0.10.0000.00716.75
8.0.00.0110.00616.40
7.4.330.0000.00515.55
7.4.320.0000.00716.48
7.4.300.0030.00316.54
7.4.290.0050.00316.42
7.4.280.0000.00816.43
7.4.270.0030.00416.50
7.4.260.0050.00013.14
7.4.250.0030.00316.49
7.4.240.0000.00716.35
7.4.230.0000.00716.52
7.4.220.0090.00816.51
7.4.210.0110.00616.48
7.4.200.0000.00716.43
7.4.160.0080.00816.51
7.4.150.0090.00917.40
7.4.140.0080.00917.86
7.4.130.0130.01416.37
7.4.120.0070.01316.35
7.4.110.0130.00316.45
7.4.100.0160.00316.34
7.4.90.0160.00616.27
7.4.80.0130.00319.39
7.4.70.0110.00616.25
7.4.60.0090.00616.19
7.4.50.0150.00016.28
7.4.40.0110.00616.56
7.4.30.0070.01016.43
7.4.00.0030.01315.01
7.3.330.0050.00012.88
7.3.320.0000.00612.87
7.3.310.0030.00316.06
7.3.300.0000.00715.96
7.3.290.0080.00015.98
7.3.280.0090.00816.12
7.3.270.0110.00517.40
7.3.260.0160.00916.45
7.3.250.0080.00916.21
7.3.240.0080.01116.21
7.3.230.0100.00716.15
7.3.210.0130.00316.08
7.3.200.0120.00316.29
7.3.190.0060.01616.18
7.3.180.0080.00816.07
7.3.170.0070.00716.08
7.3.160.0100.00616.36
7.2.330.0140.00316.29
7.2.320.0080.00816.47
7.2.310.0060.01516.50
7.2.300.0220.00316.31
7.2.290.0100.01016.55
7.2.60.0120.00316.67
7.2.00.0030.01218.92
7.1.200.0060.00615.79
7.1.100.0030.00817.93
7.1.70.1300.01715.18
7.1.60.1470.01733.29
7.1.50.0970.01732.76
7.1.40.1470.01032.49
7.1.30.1770.02032.61
7.1.20.1230.01732.75
7.1.10.0700.01714.70
7.1.00.1430.01714.91
7.0.200.1230.01014.75
7.0.190.1200.00714.74
7.0.180.0970.01714.20
7.0.170.1430.01014.17
7.0.160.1370.01314.33
7.0.150.1070.02014.33
7.0.140.1070.01714.37
7.0.130.1530.00314.59
7.0.120.1300.01714.43
7.0.110.0970.01314.62
7.0.100.0970.01314.31
7.0.90.1270.01314.35
7.0.80.1070.01314.48
7.0.70.1200.00314.32
7.0.60.1200.01014.30
7.0.50.1730.01014.52
7.0.40.1170.01014.71
7.0.30.1070.01014.49
7.0.20.1830.02014.43
7.0.10.1330.00714.68
7.0.00.1430.01314.58

preferences:
53.5 ms | 400 KiB | 5 Q