3v4l.org

run code in 300+ PHP versions simultaneously
<?php $string = "This is my test case for an example."; var_export( array_reduce( explode(' ', $string), function($result, $word) { static $last = ''; if ($last) { $result[] = "$last $word"; } $last = $word; return $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)
8.5.10.0090.00820.26
8.5.00.0120.01020.07
8.4.150.0030.00014.05
8.4.140.0110.01117.67
8.4.130.0040.00718.67
8.4.120.0110.01017.53
8.4.110.0080.01119.07
8.4.100.0070.01417.69
8.4.90.0120.00720.66
8.4.80.0070.00119.08
8.4.70.0120.00718.80
8.4.60.0070.00118.86
8.4.50.0150.00617.90
8.4.40.0060.00319.50
8.4.30.0160.00318.73
8.4.20.0130.00717.81
8.4.10.0130.00623.76
8.3.280.0100.01018.37
8.3.270.0100.01016.87
8.3.260.0050.00416.57
8.3.250.0090.00716.54
8.3.240.0040.00518.52
8.3.230.0130.00616.65
8.3.220.0100.00718.95
8.3.210.0050.00316.73
8.3.200.0060.00316.73
8.3.190.0120.00717.27
8.3.180.0110.00616.76
8.3.170.0120.00617.32
8.3.160.0140.00418.54
8.3.150.0030.00620.86
8.3.140.0060.01218.40
8.3.130.0080.00018.58
8.3.120.0060.00920.79
8.3.110.0080.00016.79
8.3.100.0120.00418.41
8.3.90.0130.00726.77
8.3.80.0090.00016.63
8.3.70.0110.00416.58
8.3.60.0070.00716.35
8.3.50.0040.01120.18
8.3.40.0110.00422.24
8.3.30.0040.01118.84
8.3.20.0000.00724.18
8.3.10.0040.00424.66
8.3.00.0000.00826.16
8.2.290.0110.00816.39
8.2.280.0090.00918.50
8.2.270.0090.00917.11
8.2.260.0140.00418.34
8.2.250.0030.00618.25
8.2.240.0060.00317.15
8.2.230.0040.00420.94
8.2.220.0090.00024.06
8.2.210.0100.01026.77
8.2.200.0030.00618.04
8.2.190.0030.01716.75
8.2.180.0120.00325.92
8.2.170.0090.01218.84
8.2.160.0040.01222.96
8.2.150.0040.00425.66
8.2.140.0000.00724.66
8.2.130.0040.00426.16
8.2.120.0000.00726.16
8.2.110.0030.00620.18
8.2.100.0110.00017.91
8.2.90.0030.00617.75
8.2.80.0060.00318.78
8.2.70.0060.00317.63
8.2.60.0040.00417.93
8.2.50.0050.00318.05
8.2.40.0080.00018.22
8.2.30.0070.00018.14
8.2.20.0000.00719.32
8.2.10.0000.00718.11
8.2.00.0050.00319.25
8.1.330.0120.00716.20
8.1.320.0120.00916.20
8.1.310.0060.00916.78
8.1.300.0080.01118.42
8.1.290.0040.00730.84
8.1.280.0120.00625.92
8.1.270.0070.00024.66
8.1.260.0040.00426.35
8.1.250.0070.00028.09
8.1.240.0060.00322.02
8.1.230.0040.00822.25
8.1.220.0040.00417.77
8.1.210.0000.00818.77
8.1.200.0040.00417.35
8.1.190.0030.00517.35
8.1.180.0050.00318.10
8.1.170.0000.00820.19
8.1.160.0040.00418.75
8.1.150.0040.00418.71
8.1.140.0000.00817.37
8.1.130.0000.00818.77
8.1.120.0080.00017.47
8.1.110.0050.01017.45
8.1.100.0070.01017.35
8.1.90.0100.00517.32
8.1.80.0110.00517.34
8.1.70.0130.00417.30
8.1.60.0120.00617.41
8.1.50.0110.00617.42
8.1.40.0140.00417.41
8.1.30.0090.00917.67
8.1.20.0150.00317.56
8.1.10.0120.00317.38
8.1.00.0110.00417.44
8.0.300.0030.00618.77
8.0.290.0060.00316.75
8.0.280.0000.01018.41
8.0.270.0000.00816.88
8.0.260.0040.00418.33
8.0.250.0000.00716.96
8.0.240.0090.00616.91
8.0.230.0170.00016.88
8.0.220.0110.00516.76
8.0.210.0110.00316.89
8.0.200.0110.00416.81
8.0.190.0150.00016.80
8.0.180.0080.00316.73
8.0.170.0090.00416.89
8.0.160.0130.00316.86
8.0.150.0070.00716.77
8.0.140.0030.01016.84
8.0.130.0120.00616.81
8.0.120.0000.01616.73
8.0.110.0110.00216.93
8.0.100.0100.00516.73
8.0.90.0110.00416.91
8.0.80.0150.00016.90
8.0.70.0120.00316.65
8.0.60.0050.00916.88
8.0.50.0150.00016.81
8.0.30.0150.00016.91
8.0.20.0150.00016.93
8.0.10.0070.00717.00
7.4.330.0020.00215.55
7.4.320.0140.00316.46
7.4.300.0130.00416.46
7.4.290.0070.00416.48
7.4.280.0090.00216.55
7.4.270.0100.00716.58
7.4.260.0120.00316.47
7.4.250.0040.01316.37
7.4.240.0110.00516.45
7.4.230.0160.00016.39
7.4.220.0070.00716.40
7.4.210.0070.00716.50
7.4.200.0070.00816.57
7.4.190.0100.00516.53
7.4.180.0060.00916.64
7.4.160.0090.00616.54
7.4.150.0140.00016.48
7.4.140.0110.00416.53
7.4.130.0100.00316.52
7.4.120.0110.00316.49
7.4.110.0060.00616.36
7.4.100.0060.00616.49
7.4.90.0090.00516.41
7.4.80.0080.00516.44
7.4.70.0110.00416.55
7.4.60.0070.00716.45
7.4.50.0090.00516.48
7.4.40.0110.00316.43
7.4.30.0070.00716.45
7.4.20.0150.00016.43
7.4.10.0100.00216.27
7.4.00.0090.00416.48

preferences:
40.35 ms | 403 KiB | 5 Q