3v4l.org

run code in 300+ PHP versions simultaneously
<?php $arr = array('a', 'b', 'c', 'd', 'e', 'f', 'g', 'h'); $str = ltrim(strrev(chunk_split(implode(array_reverse($arr)), 3, ';')),';'); echo $str;

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)
8.3.60.0070.01017.95
8.3.50.0120.00921.12
8.3.40.0120.00618.56
8.3.30.0070.00718.96
8.3.20.0000.00720.08
8.3.10.0080.00020.36
8.3.00.0000.00819.25
8.2.180.0140.00725.92
8.2.170.0080.00818.96
8.2.160.0140.00422.96
8.2.150.0040.00425.66
8.2.140.0000.00724.66
8.2.130.0000.00726.16
8.2.120.0040.00422.18
8.2.110.0090.00022.29
8.2.100.0000.01020.35
8.2.90.0030.00619.11
8.2.80.0000.00817.97
8.2.70.0080.00017.50
8.2.60.0070.00318.00
8.2.50.0040.00418.07
8.2.40.0000.00818.20
8.2.30.0050.00219.18
8.2.20.0040.00417.58
8.2.10.0000.00718.12
8.2.00.0080.00017.77
8.1.280.0120.00325.92
8.1.270.0030.00624.66
8.1.260.0070.00026.35
8.1.250.0080.00028.09
8.1.240.0060.00323.80
8.1.230.0070.00419.14
8.1.220.0000.00817.79
8.1.210.0040.00418.77
8.1.200.0000.00917.25
8.1.190.0040.00417.23
8.1.180.0000.00818.10
8.1.170.0040.00418.50
8.1.160.0000.00721.92
8.1.150.0040.00418.82
8.1.140.0070.00017.30
8.1.130.0030.00317.38
8.1.120.0030.00317.43
8.1.110.0000.00717.42
8.1.100.0040.00417.46
8.1.90.0000.00717.27
8.1.80.0000.00717.44
8.1.70.0040.00417.34
8.1.60.0030.00617.54
8.1.50.0000.00717.40
8.1.40.0040.00417.32
8.1.30.0040.00417.46
8.1.20.0000.00717.45
8.1.10.0000.00717.49
8.1.00.0020.00517.32
8.0.300.0040.00418.77
8.0.290.0000.00716.75
8.0.280.0040.00418.43
8.0.270.0000.00817.23
8.0.260.0000.00816.81
8.0.250.0030.00316.85
8.0.240.0030.00316.85
8.0.230.0000.00716.77
8.0.220.0030.00316.79
8.0.210.0030.00316.79
8.0.200.0030.00316.77
8.0.190.0030.00316.84
8.0.180.0080.00016.80
8.0.170.0040.00416.76
8.0.160.0050.00316.78
8.0.150.0000.00716.65
8.0.140.0070.00016.79
8.0.130.0090.00013.26
8.0.120.0040.00416.77
8.0.110.0040.00416.80
8.0.100.0000.00716.82
8.0.90.0070.00016.91
8.0.80.0030.01316.81
8.0.70.0050.00316.64
8.0.60.0000.00716.71
8.0.50.0070.00016.86
8.0.30.0150.00317.02
8.0.20.0090.00917.40
8.0.10.0000.00816.89
8.0.00.0070.01716.53
7.4.330.0020.00215.00
7.4.320.0000.00616.46
7.4.300.0000.00716.38
7.4.290.0030.00316.41
7.4.280.0000.00816.39
7.4.270.0040.00416.48
7.4.260.0040.00416.31
7.4.250.0040.00416.40
7.4.240.0030.00516.50
7.4.230.0000.00716.36
7.4.220.0120.00616.60
7.4.210.0030.01216.33
7.4.200.0040.00416.60
7.4.160.0100.01016.32
7.4.150.0030.01417.40
7.4.140.0120.00617.86
7.4.130.0090.00716.43
7.4.120.0110.00816.36
7.4.110.0090.00916.34
7.4.100.0160.00416.45
7.4.90.0160.00616.43
7.4.80.0180.00618.80
7.4.70.0040.01416.51
7.4.60.0090.00616.39
7.4.50.0040.00416.54
7.4.40.0130.00816.45
7.4.30.0120.00616.59
7.4.00.0030.01315.14
7.3.330.0030.00313.00
7.3.320.0030.00313.13
7.3.310.0000.00716.20
7.3.300.0030.00316.03
7.3.290.0070.01316.21
7.3.280.0090.00816.18
7.3.270.0070.01017.40
7.3.260.0100.01316.11
7.3.250.0050.01116.22
7.3.240.0030.01516.32
7.3.230.0060.00916.39
7.3.210.0160.00016.14
7.3.200.0060.01219.39
7.3.190.0090.00616.19
7.3.180.0080.00816.45
7.3.170.0060.01716.59
7.3.160.0100.00616.25
7.2.330.0070.01016.73
7.2.320.0170.00716.39
7.2.310.0030.01516.59
7.2.300.0120.00616.30
7.2.290.0130.00316.67
7.2.60.0090.00616.45
7.2.00.0000.01319.06
7.1.200.0000.00815.73
7.1.100.0060.00618.27
7.1.70.0000.00717.12
7.1.60.0040.02119.32
7.1.50.0090.01316.89
7.1.00.0070.07322.51
7.0.200.0030.00516.41
7.0.140.0030.07722.09
7.0.60.0070.06719.82
7.0.50.0030.04317.80
7.0.40.0070.04020.06
7.0.30.0470.07720.30
7.0.20.0200.04320.11
7.0.10.0000.04720.33
7.0.00.0100.07720.16
5.6.280.0030.07321.07
5.6.210.0100.07020.56
5.6.200.0100.06718.16
5.6.190.0100.08020.41
5.6.180.0330.04020.60
5.6.170.0270.05720.48
5.6.160.0030.08320.51
5.6.150.0130.03718.11
5.6.140.0030.04018.23
5.6.130.0030.09018.05
5.6.120.0100.06320.89
5.6.110.0000.09021.02
5.6.100.0000.07720.99
5.6.90.0070.09021.10
5.6.80.0100.07320.37
5.5.350.0230.07720.52
5.5.340.0030.04017.93
5.5.330.0070.04020.13
5.5.320.0400.08020.34
5.5.310.0330.07020.28
5.5.300.0170.04017.92
5.5.290.0070.05317.95
5.5.280.0070.04320.89
5.5.270.0130.07320.78
5.5.260.0030.09020.76
5.5.250.0200.06720.46
5.5.240.1500.03320.25
5.4.450.0500.03719.57
5.4.440.1030.04719.43
5.4.430.1000.05719.63
5.4.420.0970.04719.48
5.4.410.0670.06019.29
5.4.400.0930.05019.22
5.4.390.1000.05719.25
5.4.380.0500.07018.70
5.4.370.0230.05318.52
5.4.360.0370.06718.74
5.4.350.0400.04018.52
5.4.340.0300.05718.72
5.4.320.0060.04712.45
5.4.310.0080.03812.45
5.4.300.0070.04712.46
5.4.290.0030.04212.45
5.4.280.0100.03612.35
5.4.270.0060.03612.35
5.4.260.0050.03912.35
5.4.250.0070.03912.35
5.4.240.0050.03612.35
5.4.230.0010.05812.34
5.4.220.0050.03912.34
5.4.210.0070.03612.34
5.4.200.0080.03612.34
5.4.190.0020.04112.34
5.4.180.0070.03912.34
5.4.170.0050.03712.35
5.4.160.0070.03612.35
5.4.150.0040.03812.34
5.4.140.0050.03812.02
5.4.130.0110.03012.01
5.4.120.0060.03511.97
5.4.110.0050.04211.96
5.4.100.0100.03911.97
5.4.90.0070.04711.96
5.4.80.0080.03811.97
5.4.70.0080.04811.96
5.4.60.0050.03711.96
5.4.50.0050.03711.96
5.4.40.0110.03211.95
5.4.30.0090.03111.95
5.4.20.0030.03711.95
5.4.10.0050.03711.95
5.4.00.0070.03611.44
5.3.290.0080.03812.80
5.3.280.0080.03712.70
5.3.270.0070.03812.73
5.3.260.0050.04112.71
5.3.250.0080.04112.72
5.3.240.0020.04112.72
5.3.230.0060.04112.71
5.3.220.0080.03512.68
5.3.210.0060.03812.68
5.3.200.0060.03912.68
5.3.190.0100.03412.68
5.3.180.0080.03512.68
5.3.170.0050.03812.67
5.3.160.0070.03612.67
5.3.150.0070.03612.68
5.3.140.0070.03612.66
5.3.130.0050.04012.66
5.3.120.0060.03912.65
5.3.110.0070.03812.66
5.3.100.0070.03612.12
5.3.90.0050.03712.08
5.3.80.0070.03812.07
5.3.70.0080.03512.08
5.3.60.0080.03512.06
5.3.50.0090.03612.00
5.3.40.0050.03712.00
5.3.30.0060.03411.95
5.3.20.0040.03611.72
5.3.10.0080.03211.69
5.3.00.0030.03811.68
5.2.170.0050.0299.18
5.2.160.0050.0319.18
5.2.150.0030.0379.18
5.2.140.0040.0309.17
5.2.130.0010.0329.13
5.2.120.0010.0319.13
5.2.110.0050.0299.14
5.2.100.0050.0309.14
5.2.90.0060.0279.14
5.2.80.0070.0279.14
5.2.70.0060.0319.13
5.2.60.0020.0329.09
5.2.50.0020.0349.05
5.2.40.0020.0339.04
5.2.30.0050.0379.00
5.2.20.0040.0419.00
5.2.10.0060.0308.92
5.2.00.0080.0268.77
5.1.60.0040.0248.06
5.1.50.0040.0258.06
5.1.40.0020.0298.04
5.1.30.0040.0268.39
5.1.20.0030.0278.41
5.1.10.0030.0338.14
5.1.00.0040.0278.14
5.0.50.0040.0206.62
5.0.40.0030.0196.47
5.0.30.0050.0296.29
5.0.20.0040.0186.26
5.0.10.0020.0206.23
5.0.00.0040.0296.23
4.4.90.0030.0154.78
4.4.80.0040.0134.75
4.4.70.0010.0174.75
4.4.60.0010.0174.75
4.4.50.0030.0194.77
4.4.40.0040.0244.71
4.4.30.0040.0154.75
4.4.20.0030.0184.85
4.4.10.0030.0154.85
4.4.00.0050.0224.76
4.3.110.0020.0164.67
4.3.100.0000.0174.67
4.3.90.0030.0144.64
4.3.80.0040.0274.58
4.3.70.0040.0164.63
4.3.60.0050.0124.62
4.3.50.0040.0184.63
4.3.40.0020.0244.54
4.3.30.0010.0233.28
4.3.20.0010.0173.26
4.3.10.0040.0133.22
4.3.00.0030.01016.39

preferences:
47.31 ms | 401 KiB | 5 Q