3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo substr_replace(" world","Hello",6); ?>

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)
8.3.60.0140.00716.50
8.3.50.0110.00721.04
8.3.40.0120.00318.50
8.3.30.0120.00318.64
8.3.20.0070.00020.21
8.3.10.0040.00421.77
8.3.00.0000.00721.83
8.2.180.0110.01116.32
8.2.170.0070.00722.96
8.2.160.0070.00719.33
8.2.150.0040.00424.18
8.2.140.0000.00824.66
8.2.130.0080.00021.04
8.2.120.0040.00426.35
8.2.110.0070.00319.27
8.2.100.0040.00817.90
8.2.90.0000.00819.05
8.2.80.0080.00017.97
8.2.70.0090.00017.63
8.2.60.0030.00617.93
8.2.50.0080.00418.09
8.2.40.0040.00422.32
8.2.30.0040.00419.41
8.2.20.0000.00717.50
8.2.10.0000.00717.92
8.2.00.0080.00017.92
8.1.280.0000.01425.92
8.1.270.0070.00722.20
8.1.260.0040.00428.09
8.1.250.0040.00428.09
8.1.240.0000.00922.39
8.1.230.0080.00317.70
8.1.220.0050.00317.74
8.1.210.0000.00818.77
8.1.200.0060.00316.98
8.1.190.0050.00316.88
8.1.180.0040.00418.10
8.1.170.0090.00018.42
8.1.160.0040.00420.50
8.1.150.0040.00418.66
8.1.140.0030.00519.31
8.1.130.0030.00317.53
8.1.120.0030.00617.29
8.1.110.0070.00417.31
8.1.100.0000.00717.28
8.1.90.0000.00817.33
8.1.80.0000.00817.30
8.1.70.0030.00317.31
8.1.60.0040.00417.34
8.1.50.0030.00517.42
8.1.40.0040.00417.36
8.1.30.0000.00917.50
8.1.20.0070.00017.47
8.1.10.0040.00417.43
8.1.00.0080.00017.34
8.0.300.0080.00018.77
8.0.290.0040.00416.63
8.0.280.0000.00818.37
8.0.270.0040.00417.18
8.0.260.0030.00317.11
8.0.250.0070.00016.82
8.0.240.0000.00816.95
8.0.230.0030.00316.80
8.0.220.0060.00316.73
8.0.210.0030.00516.64
8.0.200.0070.00016.71
8.0.190.0040.00416.74
8.0.180.0000.00716.81
8.0.170.0000.00816.82
8.0.160.0030.00416.87
8.0.150.0000.00716.76
8.0.140.0030.00316.58
8.0.130.0030.00313.19
8.0.120.0030.00516.72
8.0.110.0070.00016.75
8.0.100.0040.00416.55
8.0.90.0030.00516.82
8.0.80.0040.01116.77
8.0.70.0000.00716.62
8.0.60.0040.00416.81
8.0.50.0050.00316.55
8.0.30.0130.00416.97
8.0.20.0110.00817.40
8.0.10.0070.00016.91
8.0.00.0130.00716.73
7.4.330.0050.00016.84
7.4.320.0000.00616.37
7.4.300.0070.00016.43
7.4.290.0030.00316.48
7.4.280.0060.00316.34
7.4.270.0060.00016.45
7.4.260.0000.00716.45
7.4.250.0000.00716.44
7.4.240.0000.00716.43
7.4.230.0000.00716.48
7.4.220.0160.00316.32
7.4.210.0130.00616.46
7.4.200.0030.00316.53
7.4.160.0060.00916.25
7.4.150.0160.00717.40
7.4.140.0080.01317.86
7.4.130.0110.01516.52
7.4.120.0130.00716.34
7.4.110.0100.00616.17
7.4.100.0080.01216.33
7.4.90.0040.01416.23
7.4.80.0090.00919.39
7.4.70.0100.00716.32
7.4.60.0090.00616.38
7.4.50.0030.01316.26
7.4.40.0080.01216.50
7.4.30.0190.00316.43
7.4.00.0070.01014.85
7.3.330.0020.00212.88
7.3.320.0000.00513.06
7.3.310.0030.00316.21
7.3.300.0040.00415.90
7.3.290.0000.00716.11
7.3.280.0090.00916.12
7.3.270.0110.00717.40
7.3.260.0200.00616.48
7.3.240.0100.00716.36
7.3.230.0030.01316.39
7.3.210.0070.01016.23
7.3.200.0060.01619.39
7.3.190.0060.01616.21
7.3.180.0100.00716.13
7.3.170.0110.00616.41
7.3.160.0060.00916.29
7.2.330.0120.00616.36
7.2.320.0090.00916.45
7.2.310.0060.00916.19
7.2.300.0030.01416.58
7.2.290.0070.01016.53
7.1.70.0030.00617.10
7.1.60.0100.01419.40
7.1.50.0120.00616.85
7.1.00.0000.08022.54
7.0.200.0570.00614.29
7.0.100.0470.06020.00
7.0.90.0600.08019.98
7.0.80.0470.05319.92
7.0.70.0530.07719.85
7.0.60.0600.07019.98
7.0.50.0470.04020.23
7.0.40.0170.04320.11
7.0.30.0030.08020.18
7.0.20.0130.07720.11
7.0.10.0070.08320.05
7.0.00.0030.09020.13
5.6.280.0000.06320.89
5.6.250.0070.08720.69
5.6.240.0100.04720.49
5.6.230.0000.08020.50
5.6.220.0070.08320.51
5.6.210.0130.07720.46
5.6.200.0170.07721.04
5.6.190.0130.07720.99
5.6.180.0070.08721.03
5.6.170.0100.05021.02
5.6.160.0100.08021.04
5.6.150.0100.07320.94
5.6.140.0130.06721.07
5.6.130.0130.07721.11
5.6.120.0100.08020.96
5.6.110.0030.05321.04
5.6.100.0030.08321.03
5.6.90.0100.08021.01
5.6.80.0130.07720.41
5.6.70.0130.07320.42
5.6.60.0000.08320.41
5.6.50.0100.08020.45
5.6.40.0100.07720.37
5.6.30.0070.06020.40
5.6.20.0130.05020.45
5.6.10.0070.08020.31
5.6.00.0130.07720.36
5.5.380.0070.08020.49
5.5.370.0130.07020.54
5.5.360.0130.06720.38
5.5.350.0100.07720.42
5.5.340.0130.07020.80
5.5.330.0230.06020.93
5.5.320.0070.08020.87
5.5.310.0030.08720.86
5.5.300.0100.08020.92
5.5.290.0130.07320.82
5.5.280.0030.08720.91
5.5.270.0130.07720.90
5.5.260.0070.08320.87
5.5.250.0100.07720.67
5.5.240.0070.07320.24
5.5.230.0070.07720.25
5.5.220.0130.07320.30
5.5.210.0030.08020.30
5.5.200.0030.05020.14
5.5.190.0100.05320.20
5.5.180.0170.05720.29
5.5.160.0200.06020.18
5.5.150.0070.07720.27
5.5.140.0070.07020.22
5.5.130.0070.08320.20
5.5.120.0170.06320.27
5.5.110.0030.04720.26
5.5.100.0100.05020.04
5.5.90.0000.08720.03
5.5.80.0100.05020.10
5.5.70.0070.07719.89
5.5.60.0070.07720.05
5.5.50.0130.07320.05
5.5.40.0000.09020.04
5.5.30.0070.08020.05
5.5.20.0030.07720.03
5.5.10.0030.05320.11
5.5.00.0070.05320.01

preferences:
44.89 ms | 401 KiB | 5 Q