3v4l.org

run code in 300+ PHP versions simultaneously
<?php error_reporting(0); $a = "abcdefffefa"; for($i = 0; $i < 12; $i++) $a = $a . $a; $b = "afe"; print(str_replace(array_unique(str_split($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)
8.3.60.0090.00618.18
8.3.50.0150.00521.89
8.3.40.0130.00318.79
8.3.30.0120.00319.26
8.3.20.0030.00620.46
8.3.10.0040.00420.44
8.3.00.0090.00019.26
8.2.180.0160.00616.63
8.2.170.0100.00622.96
8.2.160.0120.00320.47
8.2.150.0050.00324.18
8.2.140.0040.00724.66
8.2.130.0040.00426.16
8.2.120.0090.00020.82
8.2.110.0110.00022.20
8.2.100.0080.00417.84
8.2.90.0040.00419.30
8.2.80.0060.00317.97
8.2.70.0060.00317.75
8.2.60.0030.00618.17
8.2.50.0060.00318.07
8.2.40.0040.00418.34
8.2.30.0030.00619.48
8.2.20.0000.00817.88
8.2.10.0050.00218.26
8.2.00.0040.00417.82
8.1.280.0030.01425.92
8.1.270.0060.00323.97
8.1.260.0000.00926.35
8.1.250.0030.00628.09
8.1.240.0030.00623.97
8.1.230.0070.01019.27
8.1.220.0000.00817.91
8.1.210.0040.00418.77
8.1.200.0090.00017.35
8.1.190.0060.00317.35
8.1.180.0040.00418.10
8.1.170.0050.00318.71
8.1.160.0000.00822.09
8.1.150.0000.00818.99
8.1.140.0030.00517.47
8.1.130.0040.00417.98
8.1.120.0060.00317.45
8.1.110.0000.00817.54
8.1.100.0030.00617.50
8.1.90.0030.00517.37
8.1.80.0050.00317.45
8.1.70.0050.00317.46
8.1.60.0060.00317.63
8.1.50.0000.00917.65
8.1.40.0040.00417.58
8.1.30.0030.00617.72
8.1.20.0000.00917.70
8.1.10.0080.00017.71
8.1.00.0060.00317.58
8.0.300.0060.00318.77
8.0.290.0080.00016.75
8.0.280.0070.00018.55
8.0.270.0080.00017.31
8.0.260.0040.00417.45
8.0.250.0040.00417.11
8.0.240.0040.00416.99
8.0.230.0000.00817.01
8.0.220.0040.00417.05
8.0.210.0060.00317.05
8.0.200.0040.00417.11
8.0.190.0030.00517.11
8.0.180.0000.00816.98
8.0.170.0000.00816.93
8.0.160.0030.00517.01
8.0.150.0080.00016.95
8.0.140.0040.00416.91
8.0.130.0060.00013.51
8.0.120.0060.00316.92
8.0.110.0040.00417.02
8.0.100.0040.00417.08
8.0.90.0030.00517.01
8.0.80.0030.01817.02
8.0.70.0080.00016.91
8.0.60.0030.00617.16
8.0.50.0030.00616.82
8.0.30.0110.01217.14
8.0.20.0170.00717.41
8.0.10.0050.00317.15
8.0.00.0090.01016.88
7.4.330.0030.00315.00
7.4.320.0030.00516.58
7.4.300.0070.00016.51
7.4.290.0000.00816.49
7.4.280.0050.00316.71
7.4.270.0040.00416.70
7.4.260.0000.00716.59
7.4.250.0000.00816.58
7.4.240.0040.00416.70
7.4.230.0000.00716.52
7.4.220.0090.01016.79
7.4.210.0040.01116.53
7.4.200.0040.00416.79
7.4.160.0060.01016.63
7.4.150.0190.00317.40
7.4.140.0170.00617.86
7.4.130.0090.00916.58
7.4.120.0090.00916.70
7.4.110.0110.00716.59
7.4.100.0110.00816.59
7.4.90.0090.00916.67
7.4.80.0180.00719.39
7.4.70.0130.01016.51
7.4.60.0150.00316.68
7.4.50.0030.00616.47
7.4.40.0060.01216.51
7.4.30.0080.00816.57
7.4.00.0080.01115.02
7.3.330.0000.00613.36
7.3.320.0030.00313.35
7.3.310.0000.00716.27
7.3.300.0070.00016.40
7.3.290.0100.00616.41
7.3.280.0070.00916.41
7.3.270.0100.01017.40
7.3.260.0120.00616.72
7.3.250.0060.01216.68
7.3.240.0090.01516.66
7.3.230.0100.00716.59
7.3.210.0130.00616.47
7.3.200.0130.01019.39
7.3.190.0150.00916.41
7.3.180.0030.01416.38
7.3.170.0030.01416.67
7.3.160.0070.01016.68
7.3.10.0080.00416.66
7.3.00.0130.00316.75
7.2.330.0090.00916.71
7.2.320.0130.01016.66
7.2.310.0140.00916.59
7.2.300.0090.00916.67
7.2.290.0110.00616.91
7.2.130.0120.00316.98
7.2.120.0060.01016.59
7.2.110.0030.00716.81
7.2.100.0000.01016.77
7.2.90.0070.01016.87
7.2.80.0060.00916.97
7.2.70.0090.00616.65
7.2.60.0070.00716.63
7.2.50.0110.00716.81
7.2.40.0100.00317.04
7.2.30.0030.00717.07
7.2.20.0060.00917.03
7.2.10.0000.01416.77
7.2.00.0020.01018.23
7.1.250.0000.01615.84
7.1.100.0030.01218.30
7.1.70.0030.00916.89
7.1.60.0120.01219.61
7.1.50.0040.01916.91
7.1.00.0000.08322.45
7.0.200.0040.00716.89
7.0.140.0070.07021.92
7.0.60.0100.03320.01
7.0.50.0100.03717.95
7.0.40.0000.07019.98
7.0.30.0400.07020.17
7.0.20.0200.04320.09
7.0.10.0070.07320.30
7.0.00.0030.09320.20
5.6.280.0100.07021.17
5.6.210.0170.07320.77
5.6.200.0030.04018.23
5.6.190.0030.08020.66
5.6.180.0300.07320.39
5.6.170.0230.06020.42
5.6.160.0030.04020.51
5.6.150.0000.04318.15
5.6.140.0100.04318.12
5.6.130.0030.04018.22
5.6.120.0170.05020.96
5.6.110.0000.07321.14
5.6.100.0070.08720.91
5.6.90.0130.05021.01
5.6.80.0030.04720.53
5.6.70.4500.04320.50
5.5.350.0170.03320.35
5.5.340.0030.06717.88
5.5.330.0070.08020.14
5.5.320.0300.04020.29
5.5.310.0270.03720.46
5.5.300.0030.04017.96
5.5.290.0170.07017.89
5.5.280.0070.08020.98
5.5.270.0000.05020.89
5.5.260.0130.08320.76
5.5.250.0130.08020.64
5.5.240.0170.06020.25
5.4.450.1630.04019.25
5.4.440.0630.04319.26
5.4.430.0530.04719.45
5.4.420.0130.04719.40
5.4.410.0100.05718.97
5.4.400.0200.04718.92
5.4.390.0430.04319.09
5.4.380.0530.06718.72
5.4.370.0430.04718.87
5.4.360.0300.07018.87
5.4.350.0500.05318.88
5.4.340.0330.06018.67
5.4.320.0100.03412.67
5.4.310.0070.03912.66
5.4.300.0020.04112.67
5.4.290.0090.03512.67
5.4.280.0090.03312.56
5.4.270.0050.04112.56
5.4.260.0030.04112.56
5.4.250.0040.04012.56
5.4.240.0080.03612.56
5.4.230.0040.04212.56
5.4.220.0050.03712.55
5.4.210.0060.03512.56
5.4.200.0060.03812.56
5.4.190.0070.03512.55
5.4.180.0080.04312.55
5.4.170.0070.03612.57
5.4.160.0060.03912.56
5.4.150.0070.04312.56
5.4.140.0080.03912.24
5.4.130.0070.03512.23
5.4.120.0080.03712.19
5.4.110.0100.03512.18
5.4.100.0070.03512.18
5.4.90.0050.03912.18
5.4.80.0060.03812.18
5.4.70.0060.03512.18
5.4.60.0030.03812.18
5.4.50.0090.03412.18
5.4.40.0070.03312.17
5.4.30.0080.04812.16
5.4.20.0080.03412.16
5.4.10.0070.03412.16
5.4.00.0050.04011.66
5.3.290.0060.05012.93
5.3.280.0070.03912.86
5.3.270.0100.04212.87
5.3.260.0100.04212.88
5.3.250.0130.04712.87
5.3.240.0180.05812.88
5.3.230.0100.03612.87
5.3.220.0060.03912.83
5.3.210.0100.03812.83
5.3.200.0070.03612.83
5.3.190.0070.03812.84
5.3.180.0050.04212.83
5.3.170.0070.04212.83
5.3.160.0110.03612.83
5.3.150.0080.03812.83
5.3.140.0080.03512.82
5.3.130.0070.04412.81
5.3.120.0120.04912.82
5.3.110.0110.03812.81
5.3.100.0030.04012.30
5.3.90.0080.03612.29
5.3.80.0080.03512.28
5.3.70.0110.03612.28
5.3.60.0130.04912.27
5.3.50.0080.03912.21
5.3.40.0120.03712.21
5.3.30.0080.03612.17
5.3.20.0090.05411.95
5.3.10.0120.05611.91
5.3.00.0070.05111.90
5.2.170.0080.0439.39
5.2.160.0050.0449.38
5.2.150.0050.0449.39
5.2.140.0040.0439.38
5.2.130.0030.0329.34
5.2.120.0060.0289.34
5.2.110.0050.0319.35
5.2.100.0070.0289.35
5.2.90.0070.0399.35
5.2.80.0080.0329.34
5.2.70.0050.0329.34
5.2.60.0060.0429.29
5.2.50.0060.0319.26
5.2.40.0030.0329.24
5.2.30.0040.0339.21
5.2.20.0070.0289.21
5.2.10.0050.0329.14
5.2.00.0040.0318.96
5.1.60.0050.0268.23
5.1.50.0070.0238.23
5.1.40.0090.0218.21
5.1.30.0060.0278.55
5.1.20.0070.0248.58
5.1.10.0000.0308.30
5.1.00.0060.0248.30
5.0.50.0030.0236.77
5.0.40.0050.0186.62
5.0.30.0040.0336.43
5.0.20.0060.0226.43
5.0.10.0050.0196.40
5.0.00.0040.0326.40
4.4.90.0030.0164.78
4.4.80.0020.0164.76
4.4.70.0010.0174.75
4.4.60.0020.0164.76
4.4.50.0040.0144.77
4.4.40.0010.0274.71
4.4.30.0070.0124.76
4.4.20.0020.0174.84
4.4.10.0030.0154.85
4.4.00.0010.0264.75
4.3.110.0040.0154.67
4.3.100.0040.0144.67
4.3.90.0020.0164.63
4.3.80.0030.0254.61
4.3.70.0040.0144.63
4.3.60.0040.0154.63
4.3.50.0030.0154.62
4.3.40.0030.0244.57
4.3.30.0040.0143.38
4.3.20.0030.0163.35
4.3.10.0000.0203.31
4.3.00.0000.01313.57

preferences:
51.07 ms | 401 KiB | 5 Q