3v4l.org

run code in 300+ PHP versions simultaneously
<?php error_reporting(-1); var_dump(substr_replace(array("x", "y"), array(), array(), 0)); var_dump(substr_replace(array("x", "y"), array(), 0, array())); var_dump(substr_replace(array("x", "y"), 0, array(), array())); var_dump(substr_replace(array("x", "y"), 0, array(), 0));

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)
8.3.40.0070.01018.32
8.3.30.0150.00318.95
8.3.20.0060.00320.31
8.3.10.0080.00023.54
8.3.00.0000.00819.26
8.2.170.0060.00922.96
8.2.160.0100.00320.39
8.2.150.0080.00024.18
8.2.140.0090.00624.66
8.2.130.0040.00426.16
8.2.120.0040.00420.98
8.2.110.0040.00422.11
8.2.100.0110.00417.59
8.2.90.0040.00418.92
8.2.80.0040.00417.97
8.2.70.0000.00917.38
8.2.60.0030.00617.91
8.2.50.0060.00318.07
8.2.40.0050.00218.09
8.2.30.0070.00018.20
8.2.20.0070.00017.61
8.2.10.0070.00017.92
8.2.00.0040.00417.63
8.1.270.0080.00023.99
8.1.260.0000.00826.35
8.1.250.0040.00428.09
8.1.240.0030.00623.88
8.1.230.0120.00019.08
8.1.220.0000.00817.74
8.1.210.0000.01118.77
8.1.200.0060.00317.23
8.1.190.0040.00416.97
8.1.180.0050.00318.10
8.1.170.0000.00818.56
8.1.160.0050.00321.95
8.1.150.0070.00018.54
8.1.140.0000.00717.25
8.1.130.0030.00317.76
8.1.120.0070.00017.29
8.1.110.0050.00217.27
8.1.100.0050.00317.33
8.1.90.0050.00317.30
8.1.80.0030.00317.29
8.1.70.0030.00317.29
8.1.60.0030.00617.52
8.1.50.0030.00617.40
8.1.40.0040.00417.27
8.1.30.0040.00417.38
8.1.20.0040.00417.50
8.1.10.0000.00717.32
8.1.00.0000.00817.34
8.0.300.0040.00420.80
8.0.290.0000.00816.62
8.0.280.0030.00318.25
8.0.270.0030.00316.99
8.0.260.0000.00617.14
8.0.250.0030.00316.83
8.0.240.0000.00716.88
8.0.230.0070.00016.74
8.0.220.0070.00016.80
8.0.210.0040.00416.82
8.0.200.0000.01116.76
8.0.190.0070.00016.86
8.0.180.0000.00816.71
8.0.170.0000.00816.83
8.0.160.0040.00416.79
8.0.150.0000.00716.79
8.0.140.0000.00816.71
8.0.130.0030.00313.18
8.0.120.0000.00816.75
8.0.110.0040.00416.83
8.0.100.0040.00416.82
8.0.90.0000.00716.58
8.0.80.0100.00716.73
8.0.70.0040.00416.76
8.0.60.0070.00016.80
8.0.50.0000.00716.76
8.0.30.0090.01116.91
8.0.20.0120.01217.40
8.0.10.0000.00716.96
8.0.00.0100.01416.60
7.4.330.0000.00515.00
7.4.320.0000.00616.50
7.4.300.0040.00416.52
7.4.290.0030.00316.31
7.4.280.0040.00416.39
7.4.270.0030.00516.50
7.4.260.0030.00316.48
7.4.250.0000.00716.22
7.4.240.0030.00316.36
7.4.230.0000.00716.59
7.4.220.0040.01316.45
7.4.210.0040.01116.33
7.4.200.0000.00716.37
7.4.190.0070.00016.34
7.4.160.0130.00316.35
7.4.150.0060.01217.40
7.4.140.0170.00917.86
7.4.130.0070.01216.44
7.4.120.0110.00716.44
7.4.110.0100.00716.51
7.4.100.0120.00816.46
7.4.90.0100.00716.09
7.4.80.0100.00719.39
7.4.70.0090.00616.37
7.4.60.0130.00316.53
7.4.50.0040.00015.98
7.4.40.0060.01716.32
7.4.30.0090.00616.30
7.4.00.0030.01415.03
7.3.330.0000.00512.95
7.3.320.0070.00013.06
7.3.310.0020.00516.24
7.3.300.0070.00016.16
7.3.290.0000.01516.23
7.3.280.0050.01216.21
7.3.270.0120.00417.40
7.3.260.0040.01416.31
7.3.250.0110.00816.24
7.3.240.0110.00916.08
7.3.230.0200.01516.39
7.3.210.0070.01016.27
7.3.200.0070.01419.39
7.3.190.0160.00616.16
7.3.180.0120.00416.17
7.3.170.0060.01016.41
7.3.160.0140.00316.26
7.3.120.0090.00314.41
7.3.10.0050.00516.59
7.3.00.0070.00716.67
7.2.330.0090.00816.34
7.2.320.0060.01116.32
7.2.310.0120.00616.52
7.2.300.0110.01116.08
7.2.290.0100.00716.39
7.2.130.0000.01516.38
7.2.120.0090.00616.46
7.2.110.0100.00316.76
7.2.100.0030.00616.83
7.2.90.0070.01016.79
7.2.80.0030.01016.89
7.2.70.0090.00916.35
7.2.60.0050.00716.71
7.2.50.0040.01116.88
7.2.40.0080.00416.61
7.2.30.0060.00916.86
7.2.20.0080.00416.60
7.2.10.0080.00416.61
7.2.00.0020.01117.69
7.1.250.0030.01015.34
7.1.200.0060.00315.63
7.1.100.0000.01217.67
7.1.70.0030.00716.74
7.1.60.0100.01419.70
7.1.50.0030.02016.56
7.1.00.0030.07322.45
7.0.200.0180.00716.33
7.0.140.0070.06721.95
7.0.60.0170.06319.90
7.0.50.0000.07717.80
7.0.40.0070.09020.03
7.0.30.0430.04720.13
7.0.20.0200.08320.18
7.0.10.0030.04020.16
7.0.00.0030.06020.32
5.6.280.0100.07021.09
5.6.210.0130.07720.46
5.6.200.0070.05018.09
5.6.190.0030.07020.64
5.6.180.3330.04020.77
5.6.170.0270.04720.49
5.6.160.0070.05320.48
5.6.150.0100.07718.18
5.6.140.0030.08318.15
5.6.130.0000.04318.14
5.6.120.0030.08321.15
5.6.110.0130.07721.00
5.6.100.0200.08021.08
5.6.90.0170.07020.97
5.6.80.0070.06020.28
5.6.70.0270.05320.38
5.5.350.0330.03020.34
5.5.340.0100.03317.99
5.5.330.0070.08720.28
5.5.320.0470.07320.51
5.5.310.0300.07320.17
5.5.300.0030.08017.95
5.5.290.0070.07017.98
5.5.280.0100.07720.65
5.5.270.0070.08320.75
5.5.260.0070.08320.72
5.5.250.0130.08020.46
5.5.240.0300.07020.28
5.4.450.0830.08319.59
5.4.440.1130.05719.12
5.4.430.0970.06719.42
5.4.420.1030.05319.53
5.4.410.0830.05019.10
5.4.400.0230.05018.95
5.4.390.0700.07018.91
5.4.380.0400.06318.65
5.4.370.0300.07018.64
5.4.360.0330.05718.45
5.4.350.0570.06718.48
5.4.340.0430.07318.68
5.4.320.0030.04012.45
5.4.310.0030.04012.45
5.4.300.0100.03512.46
5.4.290.0070.04312.45
5.4.280.0190.08912.35
5.4.270.0080.03812.35
5.4.260.0100.04912.35
5.4.250.0120.04812.35
5.4.240.0160.10612.35
5.4.230.0100.05012.34
5.4.220.0110.06312.34
5.4.210.0170.06012.34
5.4.200.0100.05712.34
5.4.190.0090.04112.34
5.4.180.0080.04112.34
5.4.170.0090.05712.35
5.4.160.0050.04612.35
5.4.150.0070.05412.34
5.4.140.0040.04612.03
5.4.130.0100.04512.02
5.4.120.0060.05311.97
5.4.110.0100.04811.97
5.4.100.0060.05011.96
5.4.90.0070.05311.96
5.4.80.0080.05211.96
5.4.70.0070.04511.96
5.4.60.0040.04211.96
5.4.50.0040.04111.96
5.4.40.0080.03611.95
5.4.30.0040.04311.95
5.4.20.0080.03711.95
5.4.10.0220.09711.95
5.4.00.0170.08211.44
5.3.290.0060.05212.80
5.3.280.0060.04212.71
5.3.270.0060.04312.73
5.3.260.0050.05212.71
5.3.250.0070.05012.72
5.3.240.0070.04512.72
5.3.230.0080.04512.70
5.3.220.0110.04012.68
5.3.210.0150.07812.68
5.3.200.0240.09512.68
5.3.190.0080.05212.68
5.3.180.0040.05712.67
5.3.170.0070.05412.67
5.3.160.0140.07012.67
5.3.150.0040.05612.67
5.3.140.0100.03612.66
5.3.130.0080.03912.66
5.3.120.0110.04412.66
5.3.110.0070.04812.66
5.3.100.0060.05312.11
5.3.90.0110.04912.09
5.3.80.0070.05212.08
5.3.70.0070.04912.08
5.3.60.0090.04512.07
5.3.50.0110.06012.00
5.3.40.0120.08112.00
5.3.30.0070.05111.95
5.3.20.0100.04311.72
5.3.10.0130.06111.69
5.3.00.0100.05011.67
5.2.170.0050.0529.18
5.2.160.0070.0459.18
5.2.150.0070.0369.18
5.2.140.0080.0329.18
5.2.130.0060.0339.13
5.2.120.0040.0329.14
5.2.110.0040.0329.14
5.2.100.0070.0299.14
5.2.90.0050.0339.14
5.2.80.0090.0349.14
5.2.70.0070.0389.14
5.2.60.0070.0479.08
5.2.50.0080.0409.05
5.2.40.0070.0399.03
5.2.30.0140.0579.01
5.2.20.0150.0539.00
5.2.10.0080.0378.93
5.2.00.0090.0398.79
5.1.60.0070.0338.08
5.1.50.0070.0358.07
5.1.40.0050.0338.06
5.1.30.0050.0268.41
5.1.20.0090.0248.43
5.1.10.0030.0388.15
5.1.00.0040.0278.15
5.0.50.0060.0236.63
5.0.40.0010.0236.49
5.0.30.0020.0336.30
5.0.20.0040.0216.27
5.0.10.0070.0236.25
5.0.00.0030.0366.25
4.4.90.0060.0214.78
4.4.80.0020.0174.75
4.4.70.0070.0174.76
4.4.60.0040.0204.75
4.4.50.0050.0214.77
4.4.40.0020.0364.71
4.4.30.0010.0244.76
4.4.20.0030.0184.85
4.4.10.0020.0214.85
4.4.00.0030.0254.76
4.3.110.0030.0164.67
4.3.100.0050.0134.66
4.3.90.0050.0144.63
4.3.80.0020.0274.58
4.3.70.0020.0154.63
4.3.60.0010.0164.63
4.3.50.0050.0144.63
4.3.40.0020.0254.54
4.3.30.0030.0173.30
4.3.20.0020.0193.27
4.3.10.0030.0163.23
4.3.00.0130.0207.21

preferences:
43.61 ms | 400 KiB | 5 Q