3v4l.org

run code in 300+ PHP versions simultaneously
<?php $arr = array('a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k'); $str = ltrim(strrev(chunk_split(implode(array_reverse($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)
8.3.60.0070.01018.43
8.3.50.0090.01021.22
8.3.40.0120.00618.60
8.3.30.0070.00718.79
8.3.20.0040.00420.21
8.3.10.0080.00020.48
8.3.00.0080.00019.13
8.2.180.0150.00316.63
8.2.170.0070.00722.96
8.2.160.0070.00720.39
8.2.150.0080.00024.18
8.2.140.0080.00024.66
8.2.130.0070.00026.16
8.2.120.0040.00421.96
8.2.110.0000.01020.94
8.2.100.0040.00817.91
8.2.90.0050.00317.72
8.2.80.0050.00517.97
8.2.70.0040.00417.50
8.2.60.0100.00017.80
8.2.50.0000.00818.07
8.2.40.0080.00018.09
8.2.30.0040.00419.27
8.2.20.0040.00417.55
8.2.10.0000.00718.05
8.2.00.0000.00917.71
8.1.280.0040.01425.92
8.1.270.0040.00422.06
8.1.260.0070.00026.35
8.1.250.0000.00728.09
8.1.240.0100.00722.58
8.1.230.0030.00920.97
8.1.220.0080.00017.74
8.1.210.0040.00418.91
8.1.200.0060.00317.22
8.1.190.0040.00417.23
8.1.180.0000.00818.10
8.1.170.0060.00318.52
8.1.160.0040.00421.94
8.1.150.0040.00418.80
8.1.140.0040.00417.38
8.1.130.0030.00317.81
8.1.120.0030.00317.47
8.1.110.0030.00517.35
8.1.100.0030.00517.31
8.1.90.0040.00417.30
8.1.80.0040.00417.29
8.1.70.0030.00317.35
8.1.60.0040.00417.51
8.1.50.0040.00417.51
8.1.40.0000.00717.39
8.1.30.0040.00417.47
8.1.20.0040.00417.43
8.1.10.0020.00517.44
8.1.00.0040.00417.46
8.0.300.0040.00420.04
8.0.290.0000.00816.75
8.0.280.0070.00018.29
8.0.270.0000.00717.36
8.0.260.0040.00417.16
8.0.250.0040.00416.98
8.0.240.0000.00716.96
8.0.230.0000.00716.88
8.0.220.0070.00016.71
8.0.210.0000.00716.86
8.0.200.0000.00616.79
8.0.190.0030.00516.90
8.0.180.0050.00216.80
8.0.170.0040.00416.70
8.0.160.0000.00816.85
8.0.150.0030.00316.80
8.0.140.0030.00516.81
8.0.130.0030.00513.31
8.0.120.0000.00716.76
8.0.110.0070.00016.84
8.0.100.0050.00216.64
8.0.90.0050.00316.82
8.0.80.0000.01616.80
8.0.70.0000.00716.69
8.0.60.0000.00816.75
8.0.50.0070.00016.73
8.0.30.0090.01116.86
8.0.20.0130.00417.40
8.0.10.0000.00716.89
8.0.00.0030.01416.56
7.4.330.0050.00015.09
7.4.320.0000.00616.51
7.4.300.0000.00716.41
7.4.290.0000.00716.51
7.4.280.0050.00316.57
7.4.270.0080.00016.32
7.4.260.0070.00016.39
7.4.250.0030.00616.50
7.4.240.0040.00316.39
7.4.230.0040.00416.41
7.4.220.0090.01216.47
7.4.210.0080.00716.48
7.4.200.0000.00716.61
7.4.160.0120.00416.66
7.4.150.0120.00617.40
7.4.140.0120.00517.86
7.4.130.0080.01316.51
7.4.120.0110.00816.48
7.4.110.0030.01416.43
7.4.100.0030.01316.44
7.4.90.0120.00616.59
7.4.80.0030.01518.80
7.4.70.0070.01016.49
7.4.60.0090.01016.42
7.4.50.0030.00616.49
7.4.40.0090.01216.33
7.4.30.0070.01016.54
7.4.00.0050.01415.03
7.3.330.0000.00513.11
7.3.320.0030.00312.95
7.3.310.0000.00716.29
7.3.300.0050.00216.21
7.3.290.0150.00616.25
7.3.280.0080.01016.24
7.3.270.0140.00317.40
7.3.260.0130.00716.38
7.3.250.0120.00416.35
7.3.240.0140.00316.15
7.3.230.0120.00316.39
7.3.210.0060.01516.31
7.3.200.0100.00719.39
7.3.190.0140.00316.45
7.3.180.0060.01216.15
7.3.170.0130.00316.57
7.3.160.0040.01216.52
7.3.120.0030.01414.37
7.3.110.0100.01014.77
7.3.100.0100.00314.80
7.3.90.0030.01014.48
7.3.80.0030.00614.60
7.3.70.0070.00314.68
7.3.60.0060.00914.78
7.3.50.0070.00714.57
7.3.40.0090.00614.54
7.3.30.0030.00614.70
7.3.20.0000.01416.27
7.3.10.0090.00316.56
7.3.00.0040.01116.61
7.2.330.0160.00616.33
7.2.320.0100.00716.43
7.2.310.0070.01116.60
7.2.300.0120.00916.41
7.2.290.0090.00616.59
7.2.250.0070.00714.92
7.2.240.0030.01614.62
7.2.230.0130.00315.16
7.2.220.0040.00815.01
7.2.210.0030.01315.16
7.2.200.0100.00315.16
7.2.190.0090.00614.83
7.2.180.0070.00714.96
7.2.170.0070.00715.07
7.2.60.0030.01316.76
7.2.00.0000.01519.49
7.1.330.0030.01015.93
7.1.320.0070.00715.82
7.1.310.0000.01715.82
7.1.300.0070.00415.56
7.1.290.0060.00615.93
7.1.280.0030.00715.81
7.1.270.0030.01015.74
7.1.260.0000.00815.63
7.1.200.0110.00015.88
7.1.100.0070.00418.04
7.1.70.0040.00417.12
7.1.60.0110.01419.32
7.1.50.0040.01816.97
7.1.00.0030.07722.27
7.0.200.0000.00716.83
7.0.140.0000.07722.02
7.0.60.0100.07319.92
7.0.50.0130.07017.81
7.0.40.0030.04319.96
7.0.30.0430.05020.13
7.0.20.0330.08020.18
7.0.10.0100.05720.00
7.0.00.0100.06720.16
5.6.280.0030.07720.98
5.6.210.0000.04720.74
5.6.200.0030.07018.15
5.6.190.0030.09320.41
5.6.180.0500.07320.77
5.6.170.0370.04320.41
5.6.160.0100.08020.61
5.6.150.0100.06718.20
5.6.140.0070.03718.16
5.6.130.0070.08018.17
5.6.120.0030.08720.84
5.6.110.0170.08020.89
5.6.100.0030.09021.11
5.6.90.0130.06321.00
5.6.80.0070.07720.39
5.5.350.0130.07020.33
5.5.340.0070.03717.89
5.5.330.0030.05020.52
5.5.320.0400.07320.18
5.5.310.0230.07720.29
5.5.300.0130.07317.95
5.5.290.0030.05317.97
5.5.280.0070.04020.89
5.5.270.0100.07020.75
5.5.260.0100.08020.64
5.5.250.0170.07720.58
5.5.240.0200.03320.25
5.4.450.0470.06319.41
5.4.440.0900.04719.60
5.4.430.0770.05319.48
5.4.420.1000.04719.47
5.4.410.0870.06719.36
5.4.400.0870.05019.21
5.4.390.1030.05719.16
5.4.380.0570.06318.68
5.4.370.0370.05318.59
5.4.360.0470.04018.73
5.4.350.0270.05718.50
5.4.340.0230.06018.61
5.4.320.0070.03412.45
5.4.310.0050.03812.45
5.4.300.0050.03612.45
5.4.290.0050.03812.45
5.4.280.0070.03312.35
5.4.270.0080.03412.35
5.4.260.0060.03712.35
5.4.250.0070.03612.35
5.4.240.0070.03412.35
5.4.230.0100.03312.34
5.4.220.0050.03712.34
5.4.210.0070.03312.34
5.4.200.0080.03512.34
5.4.190.0040.03812.34
5.4.180.0030.03912.34
5.4.170.0050.04312.35
5.4.160.0070.04012.34
5.4.150.0040.03812.34
5.4.140.0030.03912.02
5.4.130.0050.03612.01
5.4.120.0080.03511.98
5.4.110.0060.03711.97
5.4.100.0040.03611.96
5.4.90.0080.03411.96
5.4.80.0100.03711.96
5.4.70.0040.03611.96
5.4.60.0050.03511.96
5.4.50.0060.03511.96
5.4.40.0030.03711.96
5.4.30.0050.03611.95
5.4.20.0030.03711.95
5.4.10.0100.03011.95
5.4.00.0040.03911.44
5.3.290.0050.03912.80
5.3.280.0090.03412.70
5.3.270.0070.04012.73
5.3.260.0080.03712.72
5.3.250.0070.04412.72
5.3.240.0060.03912.72
5.3.230.0070.04812.71
5.3.220.0040.04012.68
5.3.210.0060.04012.68
5.3.200.0060.03512.68
5.3.190.0050.03912.68
5.3.180.0040.03812.67
5.3.170.0060.03712.67
5.3.160.0070.03512.67
5.3.150.0050.03712.67
5.3.140.0030.03912.66
5.3.130.0070.03712.66
5.3.120.0070.03712.66
5.3.110.0050.03912.65
5.3.100.0080.03712.12
5.3.90.0110.03412.09
5.3.80.0080.03312.07
5.3.70.0090.03812.08
5.3.60.0050.03712.06
5.3.50.0080.03412.00
5.3.40.0020.04412.00
5.3.30.0050.04311.95
5.3.20.0070.03411.73
5.3.10.0050.03911.69
5.3.00.0060.03811.68
5.2.170.0040.0309.18
5.2.160.0040.0299.18
5.2.150.0060.0359.18
5.2.140.0060.0309.18
5.2.130.0030.0349.13
5.2.120.0050.0279.14
5.2.110.0040.0349.14
5.2.100.0050.0289.14
5.2.90.0040.0299.14
5.2.80.0050.0369.13
5.2.70.0040.0399.14
5.2.60.0040.0309.09
5.2.50.0050.0289.05
5.2.40.0050.0279.03
5.2.30.0060.0279.01
5.2.20.0040.0299.00
5.2.10.0030.0298.92
5.2.00.0050.0318.78
5.1.60.0060.0228.06
5.1.50.0090.0218.06
5.1.40.0060.0338.04
5.1.30.0030.0278.39
5.1.20.0040.0268.41
5.1.10.0030.0318.14
5.1.00.0050.0288.14
5.0.50.0040.0216.62
5.0.40.0060.0246.47
5.0.30.0040.0306.29
5.0.20.0040.0186.26
5.0.10.0060.0186.23
5.0.00.0040.0306.23
4.4.90.0020.0164.78
4.4.80.0060.0144.75
4.4.70.0020.0154.75
4.4.60.0030.0154.75
4.4.50.0010.0164.77
4.4.40.0010.0274.71
4.4.30.0010.0164.76
4.4.20.0030.0164.85
4.4.10.0010.0174.85
4.4.00.0050.0284.75
4.3.110.0040.0144.67
4.3.100.0030.0144.66
4.3.90.0050.0154.63
4.3.80.0040.0234.58
4.3.70.0040.0244.63
4.3.60.0040.0144.63
4.3.50.0030.0204.63
4.3.40.0020.0244.54
4.3.30.0020.0163.29
4.3.20.0010.0163.26
4.3.10.0030.0193.22
4.3.00.0130.01016.39

preferences:
56.19 ms | 401 KiB | 5 Q