3v4l.org

run code in 300+ PHP versions simultaneously
<?php namespace x { function a($x) { echo $x; } define('\x\a', '\x\a'); } namespace { var_dump(defined('a'), \x\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)
8.3.60.0090.00616.88
8.3.50.0110.00617.99
8.3.40.0150.00018.84
8.3.30.0070.00718.79
8.3.20.0000.00821.82
8.3.10.0050.00221.86
8.3.00.0080.00019.38
8.2.180.0120.00616.88
8.2.170.0110.00422.96
8.2.160.0140.00019.26
8.2.150.0040.00424.18
8.2.140.0080.00024.66
8.2.130.0030.00326.16
8.2.120.0000.00721.18
8.2.110.0060.00321.12
8.2.100.0000.01218.03
8.2.90.0060.00318.20
8.2.80.0000.00817.97
8.2.70.0000.00817.93
8.2.60.0060.00318.03
8.2.50.0050.00318.10
8.2.40.0050.00320.42
8.2.30.0000.00719.29
8.2.20.0000.00817.93
8.2.10.0040.00418.02
8.2.00.0000.00718.00
8.1.280.0100.00725.92
8.1.270.0050.00320.79
8.1.260.0000.00826.35
8.1.250.0080.00028.09
8.1.240.0060.00319.20
8.1.230.0030.00920.67
8.1.220.0080.00017.74
8.1.210.0040.00418.77
8.1.200.0000.01017.23
8.1.190.0040.00417.23
8.1.180.0000.00918.10
8.1.170.0000.00818.85
8.1.160.0040.00418.82
8.1.150.0040.00418.86
8.1.140.0040.00419.44
8.1.130.0030.00318.82
8.1.120.0000.00717.29
8.1.110.0030.00617.41
8.1.100.0050.00317.31
8.1.90.0000.00717.27
8.1.80.0070.00017.35
8.1.70.0000.00717.43
8.1.60.0060.00317.39
8.1.50.0040.00417.38
8.1.40.0040.00417.51
8.1.30.0040.00417.60
8.1.20.0040.00417.51
8.1.10.0040.00417.57
8.1.00.0000.00717.43
8.0.300.0000.00821.43
8.0.290.0040.00416.75
8.0.280.0000.00818.44
8.0.270.0000.00717.18
8.0.260.0030.00317.24
8.0.250.0070.00016.98
8.0.240.0070.00016.89
8.0.230.0000.00717.03
8.0.220.0000.00716.88
8.0.210.0000.00716.95
8.0.200.0060.00016.96
8.0.190.0040.00416.99
8.0.180.0050.00316.85
8.0.170.0000.00717.00
8.0.160.0080.00016.96
8.0.150.0040.00416.89
8.0.140.0050.00216.91
8.0.130.0030.00313.42
8.0.120.0040.00416.94
8.0.110.0040.00416.96
8.0.100.0000.00816.90
8.0.90.0000.00816.78
8.0.80.0040.01116.96
8.0.70.0000.00716.89
8.0.60.0070.00016.99
8.0.50.0040.00416.90
8.0.30.0090.00817.15
8.0.20.0140.00817.40
8.0.10.0000.00817.07
8.0.00.0070.01016.62
7.4.330.0050.00015.55
7.4.320.0000.00616.43
7.4.300.0030.00316.39
7.4.290.0000.00716.44
7.4.280.0040.00416.38
7.4.270.0000.00716.50
7.4.260.0040.00416.32
7.4.250.0020.00516.54
7.4.240.0030.00316.50
7.4.230.0040.00416.63
7.4.220.0160.00616.29
7.4.210.0080.00616.51
7.4.200.0070.00016.29
7.4.160.0060.01016.52
7.4.150.0070.01117.40
7.4.140.0140.00417.86
7.4.130.0070.01116.42
7.4.120.0100.01116.66
7.4.110.0030.01316.50
7.4.100.0110.00716.36
7.4.90.0080.00816.41
7.4.80.0100.01319.39
7.4.70.0070.01016.57
7.4.60.0090.00616.43
7.4.50.0070.00416.38
7.4.40.0140.00716.70
7.4.30.0000.01616.70
7.4.00.0070.00714.77
7.3.330.0000.00513.30
7.3.320.0060.00013.22
7.3.310.0000.00716.19
7.3.300.0030.00316.24
7.3.290.0000.00716.12
7.3.280.0110.00616.27
7.3.270.0130.00317.40
7.3.260.0090.00816.49
7.3.250.0120.00516.44
7.3.240.0090.00816.46
7.3.230.0110.01116.46
7.3.210.0120.00616.49
7.3.200.0100.00716.60
7.3.190.0200.00016.50
7.3.180.0120.00416.33
7.3.170.0160.00616.40
7.3.160.0150.00016.37
7.2.330.0030.01516.72
7.2.320.0100.00816.51
7.2.310.0060.01016.36
7.2.300.0110.01016.71
7.2.290.0140.00316.67
7.2.60.0030.01316.79
7.2.00.0070.01119.08
7.1.200.0070.00715.70
7.1.70.0050.00316.96
7.1.60.0060.00917.05
7.1.50.0130.02034.75
7.1.40.0200.01034.10
7.1.30.0270.01034.20
7.1.20.0130.01334.33
7.1.10.0070.00716.37
7.1.00.0070.01016.52
7.0.200.0030.01316.87
7.0.190.0500.01716.69
7.0.180.0030.01316.01
7.0.170.0000.01716.16
7.0.160.0070.00715.89
7.0.150.0070.01016.07
7.0.140.0070.01016.31
7.0.130.0030.00716.54
7.0.120.0070.00716.57
7.0.110.0030.01016.09
7.0.100.0030.01016.37
7.0.90.0030.01016.30
7.0.80.0070.00716.19
7.0.70.0100.00316.09
7.0.60.0000.01316.10
7.0.50.0500.00716.19
7.0.40.0070.01016.23
7.0.30.0030.01316.33
7.0.20.0030.01016.22
7.0.10.0030.01316.25
7.0.00.0070.01016.38

preferences:
40.33 ms | 400 KiB | 5 Q