3v4l.org

run code in 300+ PHP versions simultaneously
<?php ob_start(); echo 'outer 1'; ob_start(); echo 'inner'; $inner = ob_get_clean(); echo 'outer 2'; $outer = ob_get_clean(); var_dump($outer); var_dump($inner);

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)
8.5.30.0110.00718.85
8.5.20.0110.00621.23
8.5.10.0120.00916.53
8.5.00.0100.01119.85
8.4.180.0120.01119.53
8.4.170.0160.00623.71
8.4.160.0130.00922.94
8.4.150.0060.00617.75
8.4.140.0140.00917.52
8.4.130.0140.00620.36
8.4.120.0110.00920.46
8.4.110.0120.00822.37
8.4.100.0110.01020.54
8.4.90.0070.00118.91
8.4.80.0110.00820.35
8.4.70.0110.00817.77
8.4.60.0090.00918.79
8.4.50.0130.00817.70
8.4.40.0030.00617.80
8.4.30.0160.00320.38
8.4.20.0040.00417.98
8.4.10.0080.00019.63
8.3.300.0100.00620.81
8.3.290.0140.00720.68
8.3.280.0120.00818.22
8.3.270.0140.00716.61
8.3.260.0070.00316.33
8.3.250.0140.00518.66
8.3.240.0130.00718.93
8.3.230.0100.00916.36
8.3.220.0090.00418.97
8.3.210.0110.00418.24
8.3.200.0040.00416.42
8.3.190.0120.00617.27
8.3.180.0090.00918.45
8.3.170.0130.00616.80
8.3.160.0140.00316.67
8.3.150.0110.00417.23
8.3.140.0110.00718.08
8.3.130.0060.00316.43
8.3.120.0120.00319.03
8.3.110.0040.00420.94
8.3.100.0060.00324.06
8.3.90.0110.00726.77
8.3.80.0060.00316.38
8.3.70.0110.00418.56
8.3.60.0140.00018.18
8.3.50.0040.01118.07
8.3.40.0120.00920.66
8.3.30.0120.00318.55
8.3.20.0040.00424.18
8.3.10.0060.00324.66
8.3.00.0000.00826.16
8.2.300.0110.00918.07
8.2.290.0120.00720.46
8.2.280.0050.00518.60
8.2.270.0140.00417.24
8.2.260.0120.00318.66
8.2.250.0040.00416.46
8.2.240.0110.00718.17
8.2.230.0090.00022.58
8.2.220.0040.00437.54
8.2.210.0040.00426.77
8.2.200.0040.00416.38
8.2.190.0140.00416.58
8.2.180.0030.01425.92
8.2.170.0110.00418.90
8.2.160.0040.01122.96
8.2.150.0040.00425.66
8.2.140.0000.00824.66
8.2.130.0040.00426.16
8.2.120.0060.00326.16
8.2.110.0090.00020.41
8.2.100.0090.00018.98
8.1.340.0120.00817.49
8.1.330.0140.00621.95
8.1.320.0100.00916.25
8.1.310.0070.01116.41
8.1.300.0090.00617.79
8.1.290.0040.00718.88
8.1.280.0140.00025.92
8.1.270.0040.00423.99
8.1.260.0080.00026.35
8.1.250.0000.00828.09
8.1.240.0090.00018.92
8.1.230.0090.00020.34
8.1.00.0040.00517.34

preferences:
42.84 ms | 855 KiB | 5 Q