3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = "aaaaaaaaaaaaaaaababababababababa"; echo str_replace(array("aa", "ba"), "a", $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)
8.3.60.0140.00718.43
8.3.50.0080.01321.25
8.3.40.0090.00918.68
8.3.30.0170.00018.98
8.3.20.0070.00020.21
8.3.10.0080.00023.48
8.3.00.0080.00019.13
8.2.180.0030.01618.41
8.2.170.0110.00422.96
8.2.160.0080.00820.52
8.2.150.0030.00524.18
8.2.140.0040.00424.66
8.2.130.0070.00026.16
8.2.120.0040.00422.28
8.2.110.0060.00321.98
8.2.100.0080.00317.63
8.2.90.0020.00519.00
8.2.80.0080.00017.97
8.2.70.0000.00917.75
8.2.60.0040.00417.92
8.2.50.0030.00518.07
8.2.40.0060.00318.34
8.2.30.0050.00217.98
8.2.20.0040.00417.74
8.2.10.0080.00018.06
8.2.00.0040.00417.54
8.1.280.0090.00625.92
8.1.270.0110.00723.82
8.1.260.0000.00826.35
8.1.250.0040.00428.09
8.1.240.0030.00623.91
8.1.230.0040.00718.95
8.1.220.0000.00817.74
8.1.210.0000.00818.77
8.1.200.0090.00017.11
8.1.190.0000.00917.23
8.1.180.0000.00818.10
8.1.170.0000.00820.25
8.1.160.0080.00022.01
8.1.150.0000.00718.73
8.1.140.0030.00517.44
8.1.130.0080.00017.74
8.1.120.0050.00217.30
8.1.110.0000.00717.41
8.1.100.0030.00417.42
8.1.90.0000.00717.39
8.1.80.0000.00717.45
8.1.70.0040.00417.26
8.1.60.0030.00617.50
8.1.50.0000.00817.36
8.1.40.0030.00517.42
8.1.30.0040.00417.55
8.1.20.0000.00717.54
8.1.10.0060.00317.48
8.1.00.0050.00217.41
8.0.300.0040.00418.77
8.0.290.0070.00016.63
8.0.280.0030.00518.43
8.0.270.0070.00017.22
8.0.260.0000.00617.26
8.0.250.0000.00716.85
8.0.240.0040.00416.91
8.0.230.0000.00816.89
8.0.220.0080.00016.85
8.0.210.0000.00816.80
8.0.200.0000.00616.78
8.0.190.0070.00016.89
8.0.180.0040.00416.86
8.0.170.0040.00416.92
8.0.160.0000.00716.84
8.0.150.0040.00416.79
8.0.140.0050.00216.76
8.0.130.0000.00513.18
8.0.120.0040.00416.82
8.0.110.0070.00016.85
8.0.100.0050.00216.88
8.0.90.0070.00016.88
8.0.80.0080.00816.88
8.0.70.0030.00516.82
8.0.60.0040.00416.70
8.0.50.0040.00416.73
8.0.30.0090.01017.04
8.0.20.0050.01817.40
8.0.10.0050.00317.06
8.0.00.0140.00616.59
7.4.330.0020.00215.05
7.4.320.0030.00316.53
7.4.300.0060.00016.48
7.4.290.0030.00616.29
7.4.280.0060.00316.38
7.4.270.0000.00716.41
7.4.260.0070.00016.43
7.4.250.0050.00316.48
7.4.240.0030.00316.50
7.4.230.0030.00316.33
7.4.220.0140.01116.48
7.4.210.0130.00716.46
7.4.200.0030.00316.45
7.4.160.0040.01216.32
7.4.150.0070.01017.40
7.4.140.0150.00617.86
7.4.130.0090.01216.42
7.4.120.0080.00816.50
7.4.110.0100.00616.48
7.4.100.0110.00516.29
7.4.90.0090.00916.34
7.4.80.0060.01219.39
7.4.70.0090.00916.38
7.4.60.0100.01316.38
7.4.50.0040.00016.43
7.4.40.0030.01416.61
7.4.30.0080.00816.38
7.4.00.0100.00714.72
7.3.330.0000.00512.98
7.3.320.0000.00512.99
7.3.310.0040.00415.98
7.3.300.0040.00416.16
7.3.290.0040.01116.15
7.3.280.0120.00516.14
7.3.270.0030.01217.40
7.3.260.0030.01416.30
7.3.250.0130.00716.25
7.3.240.0040.01516.29
7.3.230.0120.00916.39
7.3.210.0090.00916.04
7.3.200.0070.01019.39
7.3.190.0100.00716.31
7.3.180.0130.00316.18
7.3.170.0120.00916.27
7.3.160.0070.01016.40
7.3.10.0090.00916.47
7.3.00.0030.00916.36
7.2.330.0150.00716.38
7.2.320.0130.00916.25
7.2.310.0030.01316.58
7.2.300.0120.00416.25
7.2.290.0130.00316.71
7.2.130.0150.00016.39
7.2.120.0040.00416.68
7.2.110.0100.01016.84
7.2.100.0000.01016.73
7.2.90.0100.00316.51
7.2.80.0080.00416.84
7.2.70.0100.01016.89
7.2.60.0060.00316.89
7.2.50.0120.00616.69
7.2.40.0110.01116.80
7.2.30.0030.00716.92
7.2.20.0100.00316.88
7.2.10.0040.01116.75
7.2.00.0060.00618.17
7.1.250.0040.00715.50
7.1.100.0030.00917.88
7.1.70.0040.00416.84
7.1.60.0180.00719.32
7.1.50.0230.01334.75
7.1.00.0000.07722.40
7.0.200.0040.00416.87
7.0.140.0070.07021.95
7.0.60.0130.07719.93
7.0.50.0100.03317.90
7.0.40.0070.08720.20
7.0.30.0500.04720.18
7.0.20.0230.04020.00
7.0.10.0100.04720.16
7.0.00.0000.07020.33
5.6.280.0000.07720.81
5.6.210.0100.08020.76
5.6.200.0100.08018.19
5.6.190.0100.08720.57
5.6.180.0130.08320.43
5.6.170.0300.06020.44
5.6.160.0030.06020.54
5.6.150.0130.07318.22
5.6.140.0200.06718.14
5.6.130.0130.07718.11
5.6.120.0000.04721.09
5.6.110.0000.05021.11
5.6.100.0100.07721.00
5.6.90.0170.07021.06
5.6.80.0130.05020.37
5.6.70.4430.04020.39
5.5.350.0270.07720.39
5.5.340.0030.05017.96
5.5.330.0030.04020.40
5.5.320.0270.05020.17
5.5.310.0130.04320.33
5.5.300.0130.07318.00
5.5.290.0070.08317.98
5.5.280.0070.08320.77
5.5.270.0130.05720.79
5.5.260.0030.07720.71
5.5.250.0000.06020.45
5.5.240.2600.03320.14
5.4.450.0830.05719.48
5.4.440.0770.05719.13
5.4.430.0730.05319.13
5.4.420.0100.05319.50
5.4.410.0630.05319.40
5.4.400.0030.05719.25
5.4.390.0770.05318.95
5.4.380.0830.05019.21
5.4.370.0600.06318.93
5.4.360.0800.05718.80
5.4.350.0900.05019.00
5.4.340.0050.03411.96
5.4.320.0050.03612.45
5.4.310.0030.04012.45
5.4.300.0050.04012.45
5.4.290.0070.03712.45
5.4.280.0050.03612.34
5.4.270.0070.03412.34
5.4.260.0070.03512.35
5.4.250.0080.03412.35
5.4.240.0060.03512.35
5.4.230.0060.03612.34
5.4.220.0070.03512.34
5.4.210.0050.04412.34
5.4.200.0100.03612.34
5.4.190.0030.03912.34
5.4.180.0060.03512.34
5.4.170.0070.03512.35
5.4.160.0050.03712.34
5.4.150.0050.03612.34
5.4.140.0070.03612.02
5.4.130.0090.03612.01
5.4.120.0070.03411.97
5.4.110.0060.03611.96
5.4.100.0070.03811.97
5.4.90.0070.04611.96
5.4.80.0040.03811.96
5.4.70.0040.03611.96
5.4.60.0070.03311.96
5.4.50.0040.04711.96
5.4.40.0080.03211.95
5.4.30.0040.03611.95
5.4.20.0060.04111.95
5.4.10.0070.03311.95
5.4.00.0040.03811.43
5.3.290.0070.03812.80
5.3.280.0130.03112.71
5.3.270.0120.05112.73
5.3.260.0090.04512.72
5.3.250.0040.04512.72
5.3.240.0050.03912.72
5.3.230.0070.03712.71
5.3.220.0030.03912.68
5.3.210.0070.04112.68
5.3.200.0090.03612.68
5.3.190.0050.03812.68
5.3.180.0060.03712.67
5.3.170.0070.03512.67
5.3.160.0050.03712.67
5.3.150.0060.03712.67
5.3.140.0130.03112.66
5.3.130.0050.04012.66
5.3.120.0060.03812.66
5.3.110.0070.03812.66
5.3.100.0020.04112.12
5.3.90.0060.03512.09
5.3.80.0070.03412.07
5.3.70.0020.04012.08
5.3.60.0100.03212.06
5.3.50.0090.03212.00
5.3.40.0090.03212.00
5.3.30.0040.03711.94
5.3.20.0060.03611.72
5.3.10.0030.04111.69
5.3.00.0060.03511.67
5.2.170.0040.0309.18
5.2.160.0030.0309.18
5.2.150.0070.0279.18
5.2.140.0070.0279.17
5.2.130.0030.0379.14
5.2.120.0030.0339.14
5.2.110.0040.0299.14
5.2.100.0050.0289.14
5.2.90.0110.0359.13
5.2.80.0040.0319.13
5.2.70.0040.0309.13
5.2.60.0030.0379.09
5.2.50.0050.0389.05
5.2.40.0070.0269.04
5.2.30.0060.0319.00
5.2.20.0030.0319.00
5.2.10.0070.0338.92
5.2.00.0030.0318.77
5.1.60.0070.0248.06
5.1.50.0100.0238.05
5.1.40.0090.0318.04
5.1.30.0060.0308.39
5.1.20.0100.0278.41
5.1.10.0060.0248.14
5.1.00.0080.0268.13
5.0.50.0040.0216.61
5.0.40.0020.0216.47
5.0.30.0030.0326.29
5.0.20.0040.0256.25
5.0.10.0030.0196.23
5.0.00.0050.0306.22
4.4.90.0030.0164.78
4.4.80.0050.0154.76
4.4.70.0030.0174.75
4.4.60.0020.0194.75
4.4.50.0050.0174.77
4.4.40.0030.0344.71
4.4.30.0020.0174.76
4.4.20.0050.0134.84
4.4.10.0030.0164.85
4.4.00.0040.0234.76
4.3.110.0050.0154.67
4.3.100.0020.0154.67
4.3.90.0030.0144.63
4.3.80.0030.0244.58
4.3.70.0040.0144.63
4.3.60.0040.0134.63
4.3.50.0020.0164.63
4.3.40.0020.0244.54
4.3.30.0040.0133.28
4.3.20.0020.0193.26
4.3.10.0020.0183.21
4.3.00.0170.0236.88

preferences:
40.59 ms | 401 KiB | 5 Q