3v4l.org

run code in 300+ PHP versions simultaneously
<?php $string = 'lognstring'; $segmentLength = 3; $totalLength = strlen($string); for ($i = 0; $i < $totalLength; $i += $segmentLength) { $result[] = substr( $string, min($totalLength - $segmentLength, $i), $segmentLength ); } var_export($result);

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)
8.4.130.0140.00717.91
8.4.120.0100.01020.59
8.4.110.0070.00918.84
8.4.100.0130.00617.74
8.4.90.0110.00920.39
8.4.80.0060.00620.67
8.4.70.0110.01018.83
8.4.60.0110.01020.59
8.4.50.0140.00418.37
8.4.40.0100.01017.74
8.4.30.0100.01020.46
8.4.20.0130.00719.88
8.4.10.0040.00422.18
8.3.260.0100.00916.55
8.3.250.0130.00619.08
8.3.240.0080.00819.12
8.3.230.0110.00716.45
8.3.220.0060.00918.85
8.3.210.0110.00716.63
8.3.200.0060.00316.47
8.3.190.0070.00317.41
8.3.180.0030.00519.01
8.3.170.0150.00319.18
8.3.160.0150.00316.60
8.3.150.0000.00818.82
8.3.140.0040.00420.60
8.3.130.0000.00918.45
8.3.120.0050.00518.85
8.3.110.0070.00016.49
8.3.100.0030.00618.31
8.3.90.0080.00026.77
8.3.80.0060.00318.20
8.3.70.0100.01016.58
8.3.60.0110.00416.63
8.3.50.0130.00620.15
8.3.40.0140.00020.34
8.3.30.0120.00318.76
8.3.20.0030.00524.18
8.3.10.0080.00024.66
8.3.00.0080.00026.16
8.2.290.0040.00416.46
8.2.280.0060.00220.05
8.2.270.0160.00316.73
8.2.260.0120.00617.24
8.2.250.0040.00416.40
8.2.240.0060.01218.73
8.2.230.0160.00320.94
8.2.220.0040.00424.06
8.2.210.0070.00426.77
8.2.200.0080.00016.38
8.2.190.0090.00616.58
8.2.180.0150.00025.92
8.2.170.0070.01418.96
8.2.160.0040.01122.96
8.2.150.0040.00425.66
8.2.140.0000.00824.66
8.2.130.0000.00926.16
8.2.120.0070.00026.16
8.2.110.0090.00022.04
8.2.100.0070.00417.91
8.2.90.0050.00319.22
8.2.80.0000.00817.97
8.2.70.0000.00817.63
8.2.60.0000.00917.80
8.2.50.0000.00818.07
8.2.40.0050.00318.05
8.2.30.0080.00018.06
8.2.20.0000.00822.34
8.2.10.0000.00718.04
8.2.00.0000.00719.28
8.1.330.0060.00416.15
8.1.320.0120.00717.77
8.1.310.0110.00416.42
8.1.300.0090.00019.51
8.1.290.0060.00330.84
8.1.280.0110.00725.92
8.1.270.0080.00023.99
8.1.260.0080.00026.35
8.1.250.0050.00328.09
8.1.240.0050.00523.96
8.1.230.0000.01119.01
8.1.220.0000.00817.74
8.1.210.0000.00818.77
8.1.200.0060.00317.10
8.1.190.0000.00817.35
8.1.180.0060.00318.10
8.1.170.0060.00318.50
8.1.160.0070.00018.82
8.1.150.0040.00418.45
8.1.140.0050.00217.32
8.1.130.0000.00717.40
8.1.120.0000.00717.33
8.1.110.0050.00517.39
8.1.100.0030.00317.34
8.1.90.0000.00917.43
8.1.80.0110.00417.31
8.1.70.0130.00317.32
8.1.60.0150.00317.45
8.1.50.0170.00017.49
8.1.40.0140.00417.50
8.1.30.0070.01017.59
8.1.20.0180.00017.54
8.1.10.0180.00017.47
8.1.00.0150.00517.43
8.0.300.0050.00318.77
8.0.290.0070.00016.75
8.0.280.0000.00618.32
8.0.270.0080.00016.73
8.0.260.0060.00016.80
8.0.250.0000.00716.80
8.0.240.0060.00016.93
8.0.230.0040.00416.93
8.0.220.0030.00316.78
8.0.210.0120.00216.70
8.0.200.0090.00516.73
8.0.190.0100.00516.77
8.0.180.0120.00316.68
8.0.170.0150.00016.77
8.0.160.0150.00016.79
8.0.150.0070.00716.76
8.0.140.0120.00216.82
8.0.130.0110.00416.76
8.0.120.0130.00016.84
8.0.110.0100.00516.74
8.0.100.0110.00516.76
8.0.90.0100.00516.85
8.0.80.0140.00216.71
8.0.70.0120.00316.75
8.0.60.0150.00016.75
8.0.50.0090.00516.77
8.0.30.0050.00916.66
8.0.20.0040.01116.89
8.0.10.0150.00016.91
7.4.330.0060.00015.55
7.4.320.0070.00016.45
7.4.300.0200.00616.42
7.4.290.0100.00516.41
7.4.280.0090.00416.44
7.4.270.0080.00716.51
7.4.260.0120.00416.52
7.4.250.0090.00616.33
7.4.240.0090.00616.52
7.4.230.0110.00616.28
7.4.220.0070.00416.28
7.4.210.0040.00716.41
7.4.200.0040.00916.55
7.4.190.0090.00416.52
7.4.180.0070.00816.57
7.4.160.0110.00416.57
7.4.150.0120.00416.45
7.4.140.0100.00416.52
7.4.130.0040.00816.36
7.4.120.0000.01316.46
7.4.110.0110.00316.34
7.4.100.0120.00016.47
7.4.90.0070.00216.20
7.4.80.0100.00016.38
7.4.70.0100.00016.32
7.4.60.0100.00016.45
7.4.50.0080.00216.25
7.4.40.0040.00716.06
7.4.30.0050.00516.02
7.4.20.0000.01016.45
7.4.10.0050.00516.28
7.4.00.0070.00316.55

preferences:
82.24 ms | 403 KiB | 5 Q