3v4l.org

run code in 300+ PHP versions simultaneously
<?php $content = "<?"; $tokensOldContentLength = 0; $possibleOpenContent = substr($content, -1, 5); var_dump($possibleOpenContent);

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)
8.3.60.0120.00418.38
8.3.50.0130.00719.98
8.3.40.0040.01118.42
8.3.30.0150.00019.10
8.3.20.0020.00524.18
8.3.10.0040.00424.66
8.3.00.0080.00026.16
8.2.180.0090.00625.92
8.2.170.0070.01518.71
8.2.160.0040.01122.96
8.2.150.0000.00725.66
8.2.140.0080.00024.66
8.2.130.0070.00026.16
8.2.120.0000.00826.16
8.2.110.0030.00620.52
8.2.100.0000.01217.66
8.2.90.0000.00720.42
8.2.80.0000.00818.79
8.2.70.0040.00417.50
8.2.60.0060.00317.91
8.2.50.0090.00018.07
8.2.40.0090.00018.22
8.2.30.0080.00017.90
8.2.20.0070.00020.47
8.2.10.0030.00517.91
8.2.00.0060.00319.23
8.1.280.0030.01025.92
8.1.270.0080.00023.99
8.1.260.0000.00826.35
8.1.250.0080.00028.09
8.1.240.0040.00420.23
8.1.230.0000.01117.82
8.1.220.0060.00317.74
8.1.210.0060.00318.77
8.1.200.0060.00317.23
8.1.190.0090.00017.23
8.1.180.0000.00918.10
8.1.170.0040.00418.61
8.1.160.0000.00718.69
8.1.150.0050.00518.57
8.1.140.0030.00617.24
8.1.130.0030.00318.72
8.1.120.0000.00717.32
8.1.110.0050.00317.28
8.1.100.0000.00717.29
8.1.90.0040.00417.39
8.1.80.0020.00517.39
8.1.70.0070.00017.43
8.1.60.0130.00317.35
8.1.50.0170.00717.30
8.1.40.0210.00417.44
8.1.30.0140.00917.52
8.1.20.0110.00917.56
8.1.10.0180.00617.48
8.1.00.0100.01417.21
8.0.300.0000.00718.77
8.0.290.0050.00316.63
8.0.280.0030.00618.24
8.0.270.0000.00716.74
8.0.260.0030.00318.38
8.0.250.0060.00316.89
8.0.240.0000.00616.84
8.0.230.0000.00816.81
8.0.220.0030.00516.79
8.0.210.0030.00316.75
8.0.200.0000.00716.78
8.0.190.0200.00016.85
8.0.180.0140.00516.65
8.0.170.0110.00716.67
8.0.160.0130.00616.66
8.0.150.0150.00416.63
8.0.140.0190.00016.57
8.0.130.0150.00316.74
8.0.120.0000.01816.77
8.0.110.0140.00516.65
8.0.100.0190.00016.69
8.0.90.0140.00716.59
8.0.80.0150.00316.77
8.0.70.0060.01316.75
8.0.60.0150.00416.59
8.0.50.0140.00416.63
8.0.30.0150.00316.72
8.0.20.0120.00616.80
8.0.10.0130.00516.71
7.4.330.0020.00215.55
7.4.320.0070.00016.42
7.4.300.0070.00016.41
7.4.290.0000.01416.32
7.4.280.0180.00316.32
7.4.270.0180.00016.30
7.4.260.0140.00816.31
7.4.250.0150.00716.36
7.4.240.0150.00416.39
7.4.230.0100.00316.49
7.4.220.0120.00616.48
7.4.210.0130.00316.40
7.4.200.0140.00016.54
7.4.190.0030.00716.44
7.4.180.0050.00516.45
7.4.160.0130.00416.45
7.4.150.0140.00316.45
7.4.140.0140.00516.39
7.4.130.0060.00916.30
7.4.120.0130.00516.20
7.4.110.0100.00516.29
7.4.100.0140.00316.43
7.4.90.0140.00516.34
7.4.80.0180.00016.25
7.4.70.0120.00616.32
7.4.60.0140.00416.23
7.4.50.0130.00316.33
7.4.40.0120.00616.30
7.4.30.0110.00716.16
7.4.20.0140.00516.27
7.4.10.0140.00416.16
7.4.00.0130.00416.25

preferences:
37.71 ms | 401 KiB | 5 Q