3v4l.org

run code in 300+ PHP versions simultaneously
<?php error_reporting(0); $a = "abcdefffefa"; $b = "afe"; print(str_replace(array_unique(str_split($b)), "", $a));

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)
8.3.70.0100.00616.75
8.3.60.0130.00718.18
8.3.50.0080.00821.89
8.3.40.0090.00618.72
8.3.30.0070.00718.92
8.3.20.0040.00420.28
8.3.10.0080.00020.36
8.3.00.0080.00019.13
8.2.180.0000.01516.63
8.2.170.0100.01022.96
8.2.160.0100.00720.39
8.2.150.0000.00724.18
8.2.140.0060.00324.66
8.2.130.0000.00726.16
8.2.120.0000.00821.09
8.2.110.0090.00022.07
8.2.100.0090.00317.66
8.2.90.0040.00419.10
8.2.80.0080.00017.97
8.2.70.0040.00417.50
8.2.60.0000.00817.68
8.2.50.0040.00418.07
8.2.40.0050.00218.16
8.2.30.0050.00619.49
8.2.20.0040.00417.68
8.2.10.0000.00818.06
8.2.00.0000.00717.53
8.1.280.0090.00625.92
8.1.270.0050.00324.02
8.1.260.0070.00026.35
8.1.250.0050.00328.09
8.1.240.0030.00623.84
8.1.230.0070.00419.00
8.1.220.0030.00517.74
8.1.210.0050.00318.77
8.1.200.0000.01117.23
8.1.190.0050.00317.22
8.1.180.0000.00919.01
8.1.170.0030.00718.34
8.1.160.0000.00721.95
8.1.150.0000.00718.83
8.1.140.0000.00817.36
8.1.130.0030.00317.87
8.1.120.0040.00417.37
8.1.110.0040.00417.44
8.1.100.0070.00017.40
8.1.90.0040.00417.46
8.1.80.0070.00017.37
8.1.70.0000.00717.30
8.1.60.0030.00517.51
8.1.50.0000.00817.44
8.1.40.0040.00417.41
8.1.30.0030.00517.51
8.1.20.0050.00317.63
8.1.10.0040.00417.39
8.1.00.0040.00417.30
8.0.300.0070.00018.77
8.0.290.0040.00416.88
8.0.280.0080.00018.31
8.0.270.0070.00017.17
8.0.260.0000.00617.25
8.0.250.0000.00716.89
8.0.240.0070.00016.93
8.0.230.0070.00016.84
8.0.220.0000.00716.85
8.0.210.0030.00616.83
8.0.200.0040.00416.89
8.0.190.0050.00216.84
8.0.180.0070.00016.75
8.0.170.0000.00716.81
8.0.160.0000.00716.85
8.0.150.0030.00316.70
8.0.140.0000.00716.68
8.0.130.0050.00013.25
8.0.120.0080.00016.77
8.0.110.0000.00716.89
8.0.100.0070.00016.78
8.0.90.0030.00316.80
8.0.80.0120.00316.80
8.0.70.0040.00416.63
8.0.60.0080.00016.68
8.0.50.0000.00716.89
8.0.30.0150.00616.91
8.0.20.0120.01017.40
8.0.10.0070.00016.97
8.0.00.0110.00816.67
7.4.330.0030.00315.04
7.4.320.0060.00016.48
7.4.300.0040.00416.56
7.4.290.0030.00316.46
7.4.280.0020.00516.38
7.4.270.0070.00016.56
7.4.260.0030.00316.54
7.4.250.0090.00016.34
7.4.240.0000.00716.43
7.4.230.0030.00316.24
7.4.220.0140.00416.58
7.4.210.0070.00716.54
7.4.200.0030.00316.54
7.4.160.0030.01316.32
7.4.150.0060.01217.40
7.4.140.0130.00917.86
7.4.130.0090.00816.38
7.4.120.0090.00816.57
7.4.110.0080.00816.36
7.4.100.0090.01016.35
7.4.90.0080.00816.27
7.4.80.0140.00819.39
7.4.70.0160.00316.45
7.4.60.0040.01816.47
7.4.50.0000.00816.43
7.4.40.0090.00616.29
7.4.30.0120.00316.70
7.4.00.0040.01114.82
7.3.330.0050.00013.03
7.3.320.0060.00013.04
7.3.310.0070.00016.07
7.3.300.0000.00716.20
7.3.290.0060.01316.14
7.3.280.0060.00916.20
7.3.270.0120.00617.40
7.3.260.0030.01316.31
7.3.250.0130.00516.23
7.3.240.0150.00316.50
7.3.230.0030.01316.39
7.3.210.0140.00716.18
7.3.200.0100.00619.39
7.3.190.0100.00616.41
7.3.180.0170.00516.50
7.3.170.0110.00616.42
7.3.160.0170.00016.22
7.2.330.0070.01116.59
7.2.320.0100.01016.53
7.2.310.0140.01016.33
7.2.300.0070.01016.47
7.2.290.0040.01116.65
7.2.110.0130.00616.46
7.2.60.0060.00616.44
7.2.00.0000.01419.38
7.1.200.0060.00815.63
7.1.100.0060.00618.01
7.1.70.0000.00717.14
7.1.60.0130.01019.61
7.1.50.0040.01816.84
7.1.00.0000.08022.51
7.0.200.0030.00616.78
7.0.140.0000.07722.01
7.0.60.0130.07719.90
7.0.50.0000.08017.88
7.0.40.0100.06719.90
7.0.30.0230.07020.21
7.0.20.0200.05320.00
7.0.10.0270.06020.19
7.0.00.0100.06020.04
5.6.280.0070.07021.03
5.6.210.0130.05720.69
5.6.200.0000.09318.09
5.6.190.0170.07720.58
5.6.180.0270.04020.62
5.6.170.0270.08720.71
5.6.160.0130.07020.46
5.6.150.0070.08018.07
5.6.140.0070.04018.16
5.6.130.0100.07018.22
5.6.120.0070.08721.01
5.6.110.0100.08021.10
5.6.100.0170.05321.13
5.6.90.0070.06321.09
5.6.80.0070.08020.50
5.6.70.0370.07020.39
5.5.350.0000.08720.36
5.5.340.0100.07318.02
5.5.330.0030.08720.40
5.5.320.0300.07020.24
5.5.310.0430.06320.24
5.5.300.0070.08017.89
5.5.290.0030.04018.01
5.5.280.0070.05720.76
5.5.270.0100.05720.79
5.5.260.0030.07020.78
5.5.250.0130.08020.46
5.5.240.0070.06720.34
5.4.450.0230.03019.46
5.4.440.0330.05019.57
5.4.430.0270.04319.41
5.4.420.0230.04719.45
5.4.410.0170.04319.44
5.4.400.0430.03319.26
5.4.390.0400.04319.23
5.4.380.0300.05718.45
5.4.370.0700.06718.73
5.4.360.0500.03018.74
5.4.350.0300.06018.60
5.4.340.0430.05018.48
5.4.320.0100.04112.45
5.4.310.0150.05612.45
5.4.300.0070.03512.45
5.4.290.0100.03412.45
5.4.280.0080.03412.35
5.4.270.0050.03812.35
5.4.260.0080.04112.35
5.4.250.0060.04312.34
5.4.240.0100.03712.35
5.4.230.0090.04312.34
5.4.220.0050.03712.34
5.4.210.0060.03612.34
5.4.200.0070.03912.34
5.4.190.0080.04012.34
5.4.180.0080.04112.33
5.4.170.0100.03912.35
5.4.160.0090.03612.34
5.4.150.0110.03612.34
5.4.140.0120.04112.02
5.4.130.0120.03012.01
5.4.120.0120.03011.96
5.4.110.0080.03611.96
5.4.100.0060.03611.96
5.4.90.0090.05411.96
5.4.80.0140.06311.96
5.4.70.0150.04711.96
5.4.60.0090.04211.96
5.4.50.0120.04011.96
5.4.40.0050.04411.95
5.4.30.0070.03611.95
5.4.20.0080.03511.95
5.4.10.0070.03411.95
5.4.00.0080.03411.43
5.3.290.0060.05212.80
5.3.280.0070.04512.71
5.3.270.0060.05112.72
5.3.260.0140.04312.72
5.3.250.0110.03912.72
5.3.240.0080.03612.72
5.3.230.0090.03512.71
5.3.220.0090.04012.68
5.3.210.0080.04512.68
5.3.200.0040.04012.68
5.3.190.0070.03812.67
5.3.180.0040.04012.67
5.3.170.0080.03612.67
5.3.160.0060.03812.68
5.3.150.0060.03912.67
5.3.140.0070.03612.66
5.3.130.0060.04012.66
5.3.120.0080.03812.66
5.3.110.0070.03812.66
5.3.100.0030.04012.12
5.3.90.0050.03912.09
5.3.80.0030.04112.08
5.3.70.0050.03812.07
5.3.60.0060.03712.07
5.3.50.0050.03812.00
5.3.40.0050.03712.00
5.3.30.0040.03711.94
5.3.20.0100.03211.72
5.3.10.0080.03211.69
5.3.00.0060.03511.67
5.2.170.0050.0299.18
5.2.160.0040.0309.18
5.2.150.0020.0349.18
5.2.140.0080.0279.17
5.2.130.0050.0299.13
5.2.120.0090.0249.13
5.2.110.0050.0289.14
5.2.100.0040.0289.14
5.2.90.0070.0309.13
5.2.80.0050.0339.13
5.2.70.0050.0349.13
5.2.60.0010.0349.09
5.2.50.0010.0359.06
5.2.40.0050.0369.03
5.2.30.0040.0349.01
5.2.20.0060.0299.00
5.2.10.0060.0278.94
5.2.00.0050.0298.79
5.1.60.0050.0238.08
5.1.50.0060.0338.07
5.1.40.0070.0218.05
5.1.30.0090.0228.41
5.1.20.0060.0278.43
5.1.10.0050.0268.15
5.1.00.0050.0278.15
5.0.50.0040.0216.63
5.0.40.0050.0196.49
5.0.30.0050.0326.30
5.0.20.0030.0236.27
5.0.10.0030.0276.24
5.0.00.0030.0316.24
4.4.90.0030.0224.78
4.4.80.0060.0184.75
4.4.70.0020.0164.75
4.4.60.0040.0154.76
4.4.50.0030.0164.77
4.4.40.0030.0254.71
4.4.30.0040.0154.76
4.4.20.0020.0184.85
4.4.10.0060.0144.84
4.4.00.0060.0234.76
4.3.110.0030.0174.67
4.3.100.0070.0184.67
4.3.90.0060.0154.64
4.3.80.0040.0274.58
4.3.70.0040.0134.63
4.3.60.0040.0154.63
4.3.50.0040.0194.62
4.3.40.0010.0264.53
4.3.30.0030.0153.29
4.3.20.0020.0213.27
4.3.10.0020.0203.23
4.3.00.0000.02013.57

preferences:
51.71 ms | 401 KiB | 5 Q