3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = ''; if(empty($a)) { echo 'true'; } else { echo 'false'; }

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)
8.3.60.0140.00016.38
8.3.50.0140.00522.01
8.3.40.0100.00318.58
8.3.30.0040.01518.59
8.3.20.0000.00820.36
8.3.10.0030.00523.52
8.3.00.0040.00419.38
8.2.180.0130.00316.38
8.2.170.0110.00322.96
8.2.160.0100.00320.57
8.2.150.0060.00324.18
8.2.140.0040.00424.66
8.2.130.0110.00017.50
8.2.120.0040.00426.35
8.2.110.0040.00822.12
8.2.100.0100.00318.03
8.2.90.0000.00819.30
8.2.80.0080.00017.97
8.2.70.0050.00317.50
8.2.60.0000.00918.05
8.2.50.0040.00418.07
8.2.40.0040.00419.45
8.2.30.0000.00720.67
8.2.20.0100.00017.60
8.2.10.0000.00717.97
8.2.00.0080.00018.01
8.1.280.0140.00425.92
8.1.270.0060.01022.05
8.1.260.0020.00528.09
8.1.250.0040.00428.09
8.1.240.0100.01022.53
8.1.230.0050.00517.54
8.1.220.0000.00817.74
8.1.210.0000.00818.77
8.1.200.0030.00617.36
8.1.190.0080.00017.22
8.1.180.0000.00818.10
8.1.170.0070.00018.59
8.1.160.0040.00421.80
8.1.150.0070.00018.81
8.1.140.0040.00419.56
8.1.130.0000.00717.67
8.1.120.0070.00017.41
8.1.110.0030.00517.39
8.1.100.0050.00217.39
8.1.90.0000.00717.36
8.1.80.0040.00317.39
8.1.70.0000.00717.20
8.1.60.0080.00017.53
8.1.50.0030.00517.34
8.1.40.0030.00617.43
8.1.30.0000.00817.51
8.1.20.0080.00017.55
8.1.10.0000.00717.35
8.1.00.0080.00017.29
8.0.300.0000.00718.77
8.0.290.0000.00916.63
8.0.280.0030.00318.30
8.0.270.0000.00717.27
8.0.260.0070.00017.29
8.0.250.0070.00016.75
8.0.240.0030.00316.88
8.0.230.0030.00316.95
8.0.220.0050.00216.86
8.0.210.0040.00416.83
8.0.200.0090.00016.88
8.0.190.0000.00816.79
8.0.180.0000.00716.82
8.0.170.0040.00516.88
8.0.160.0030.00316.86
8.0.150.0050.00216.75
8.0.140.0030.00516.72
8.0.130.0030.00313.20
8.0.120.0070.00016.79
8.0.110.0070.00016.79
8.0.100.0040.00416.67
8.0.90.0000.00716.82
8.0.80.0030.01216.86
8.0.70.0040.00416.77
8.0.60.0040.00416.88
8.0.50.0000.00716.66
8.0.30.0060.00917.19
8.0.20.0100.00917.40
8.0.10.0040.00416.93
8.0.00.0090.00816.71
7.4.330.0020.00215.08
7.4.320.0000.00616.53
7.4.300.0060.00016.45
7.4.290.0000.00716.44
7.4.280.0040.00416.40
7.4.270.0000.00616.53
7.4.260.0040.00416.50
7.4.250.0060.00316.48
7.4.240.0040.00416.42
7.4.230.0000.00716.28
7.4.220.0000.01716.45
7.4.210.0050.01116.47
7.4.200.0030.00416.45
7.4.160.0130.00616.39
7.4.150.0160.00017.40
7.4.140.0080.01117.86
7.4.130.0120.00616.31
7.4.120.0080.00916.45
7.4.110.0070.01016.29
7.4.100.0030.01316.27
7.4.90.0070.01016.44
7.4.80.0100.00719.39
7.4.70.0130.00516.36
7.4.60.0150.00716.45
7.4.50.0030.00516.37
7.4.40.0120.01216.60
7.4.30.0180.00016.43
7.4.00.0040.01115.13
7.3.330.0060.00313.06
7.3.320.0020.00212.80
7.3.310.0070.00016.19
7.3.300.0070.00016.18
7.3.290.0050.00216.05
7.3.280.0060.01016.15
7.3.270.0120.00617.40
7.3.260.0070.01016.38
7.3.240.0090.00816.22
7.3.230.0140.00316.39
7.3.210.0100.00716.10
7.3.200.0090.00916.25
7.3.190.0060.00916.50
7.3.180.0100.01016.05
7.3.170.0060.01216.27
7.3.160.0030.01316.42
7.2.330.0080.00816.25
7.2.320.0130.00916.47
7.2.310.0060.00916.26
7.2.300.0070.01316.52
7.2.290.0110.00616.21
7.2.60.0040.01116.67
7.2.00.0090.00919.03
7.1.200.0000.01115.43
7.1.100.0030.01017.96
7.1.70.0040.00416.94
7.1.60.0100.01019.48
7.1.50.0120.00916.75
7.1.00.0000.08022.28
7.0.200.0320.00314.87
7.0.60.0070.08719.82
7.0.50.0000.07017.82
7.0.40.0030.05020.05
7.0.30.0270.07020.09
7.0.20.0330.03720.30
7.0.10.0200.05720.16
7.0.00.0100.08320.15
5.6.280.0000.03321.14
5.6.210.0100.07020.73
5.6.200.0070.09018.12
5.6.190.0100.04320.27
5.6.180.0300.08320.64
5.6.170.0330.06320.49
5.6.160.0070.03720.40
5.6.150.0170.05318.16
5.6.140.0130.04318.15
5.6.130.0100.07718.21
5.6.120.0070.04721.09
5.6.110.0000.04321.00
5.6.100.0030.06321.09
5.6.90.0070.08020.98
5.6.80.0170.03720.47
5.5.350.3830.04020.41
5.5.340.0130.05018.02
5.5.330.0070.08320.19
5.5.320.0600.07320.13
5.5.310.0270.07020.18
5.5.300.0070.08017.96
5.5.290.0030.07317.92
5.5.280.0130.07320.67
5.5.270.0130.07720.88
5.5.260.0030.07320.96
5.5.250.0170.07720.68
5.5.240.0100.07020.25

preferences:
65.28 ms | 401 KiB | 5 Q