3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo substr('Adminaaaa','Admin'); ?>

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)
8.3.40.0090.00618.79
8.3.30.0070.00719.14
8.3.20.0040.00420.35
8.3.10.0040.00423.48
8.3.00.0030.00519.38
8.2.170.0110.00422.96
8.2.160.0100.00320.50
8.2.150.0040.00424.18
8.2.140.0080.00024.66
8.2.130.0070.00026.16
8.2.120.0080.00022.15
8.2.110.0030.00721.98
8.2.100.0000.01117.84
8.2.90.0080.00019.05
8.2.80.0030.00617.97
8.2.70.0060.00317.50
8.2.60.0040.00417.93
8.2.50.0060.00318.07
8.2.40.0040.00418.16
8.2.30.0000.00817.90
8.2.20.0080.00017.65
8.2.10.0040.00418.04
8.2.00.0030.00717.54
8.1.270.0060.00323.96
8.1.260.0070.00026.35
8.1.250.0040.00428.09
8.1.240.0060.00323.79
8.1.230.0060.00619.13
8.1.220.0000.00817.74
8.1.210.0050.00318.77
8.1.200.0030.00717.35
8.1.190.0000.00817.39
8.1.180.0030.00618.10
8.1.170.0080.00018.51
8.1.160.0040.00421.87
8.1.150.0000.00718.56
8.1.140.0040.00417.20
8.1.130.0070.00017.80
8.1.120.0050.00217.39
8.1.110.0030.00517.38
8.1.100.0030.00417.28
8.1.90.0050.00217.27
8.1.80.0030.00317.34
8.1.70.0070.00017.30
8.1.60.0090.00317.33
8.1.50.0080.00017.36
8.1.40.0040.00417.49
8.1.30.0080.00017.52
8.1.20.0000.00717.59
8.1.10.0000.00717.52
8.1.00.0050.00317.29
8.0.300.0040.00418.77
8.0.290.0040.00417.18
8.0.280.0000.00718.36
8.0.270.0030.00317.23
8.0.260.0060.00017.17
8.0.250.0000.00716.95
8.0.240.0030.00316.88
8.0.230.0040.00416.95
8.0.220.0070.00016.86
8.0.210.0070.00016.79
8.0.200.0030.00316.93
8.0.190.0000.00716.77
8.0.180.0000.00816.82
8.0.170.0000.00816.89
8.0.160.0050.00316.82
8.0.150.0000.00716.86
8.0.140.0000.00816.81
8.0.130.0050.00313.27
8.0.120.0040.00416.86
8.0.110.0040.00416.91
8.0.100.0000.00716.76
8.0.90.0070.00016.95
8.0.80.0030.01216.92
8.0.70.0070.00016.70
8.0.60.0040.00416.71
8.0.50.0040.00416.88
8.0.30.0110.00816.90
8.0.20.0070.01317.40
8.0.10.0000.00717.00
8.0.00.0110.00816.71
7.4.330.0050.00015.00
7.4.320.0030.00316.51
7.4.300.0030.00316.36
7.4.290.0070.00016.41
7.4.280.0030.00316.29
7.4.270.0050.00316.36
7.4.260.0020.00516.35
7.4.250.0000.00816.37
7.4.240.0020.00516.38
7.4.230.0070.00016.24
7.4.220.0070.01016.50
7.4.210.0090.00816.36
7.4.200.0030.00316.25
7.4.190.0000.00716.27
7.4.160.0090.00916.38
7.4.150.0130.00317.40
7.4.140.0130.01217.86
7.4.130.0090.00816.38
7.4.120.0090.00816.53
7.4.110.0030.01316.23
7.4.100.0170.00316.68
7.4.90.0130.00316.32
7.4.80.0060.01119.39
7.4.70.0090.00616.30
7.4.60.0060.01016.43
7.4.50.0000.00816.56
7.4.40.0040.01122.77
7.4.30.0040.01216.15
7.4.00.0030.01314.93
7.3.330.0000.00513.02
7.3.320.0060.00012.98
7.3.310.0000.00716.04
7.3.300.0030.00316.17
7.3.290.0040.01116.22
7.3.280.0060.01316.17
7.3.270.0070.01017.40
7.3.260.0290.01516.16
7.3.250.0040.01216.37
7.3.240.0110.00616.20
7.3.230.0040.01116.39
7.3.210.0030.01316.43
7.3.200.0140.00819.39
7.3.190.0110.00716.14
7.3.180.0070.01016.23
7.3.170.0060.00916.35
7.3.160.0060.01016.35
7.3.120.0100.00314.72
7.2.330.0170.00016.52
7.2.320.0070.01016.48
7.2.310.0060.01016.63
7.2.300.0060.00916.34
7.2.290.0080.00816.54
7.2.60.0070.00716.85
7.2.00.0030.00919.27
7.1.200.0060.00915.65
7.1.100.0090.00617.86
7.1.70.0060.00316.98
7.1.60.0070.01619.46
7.1.50.0230.01334.72
7.1.00.0030.07722.35
7.0.200.0080.00816.66
7.0.140.0030.06721.95
7.0.60.0070.03719.89
7.0.50.0100.07717.86
7.0.40.0030.05720.07
7.0.30.0300.04320.18
7.0.20.0270.04320.09
7.0.10.0100.04720.17
7.0.00.0070.04020.00
5.6.280.0100.06720.90
5.6.210.0030.04020.60
5.6.200.0030.06718.07
5.6.190.0130.07720.61
5.6.180.0270.07720.27
5.6.170.0230.06020.49
5.6.160.0100.08020.71
5.6.150.0100.05318.15
5.6.140.0030.05018.18
5.6.130.0100.07018.18
5.6.120.0130.07321.14
5.6.110.0000.04320.98
5.6.100.0070.08021.00
5.6.90.0070.05020.87
5.6.80.0100.04720.41
5.6.70.4430.04020.37
5.5.350.0070.08020.42
5.5.340.0100.08017.92
5.5.330.0030.04720.22
5.5.320.0100.08320.43
5.5.310.0270.07720.24
5.5.300.0030.06317.91
5.5.290.0170.07317.91
5.5.280.0030.05720.86
5.5.270.0030.05020.63
5.5.260.0170.06320.95
5.5.250.0070.06020.60
5.5.240.0170.03720.34
5.4.450.0930.06719.62
5.4.440.0900.07319.54
5.4.430.0600.06019.59
5.4.420.0830.04719.46
5.4.410.0270.07719.14
5.4.400.0800.05319.23
5.4.390.0730.07318.77
5.4.380.0370.07318.74
5.4.370.0300.05718.50
5.4.360.0270.05718.68
5.4.350.0430.05018.74
5.4.340.0330.05718.68
5.4.320.0110.03512.45
5.4.310.0060.04712.45
5.4.300.0070.04212.45
5.4.290.0080.03812.45
5.4.280.0130.05812.33
5.4.270.0110.03712.33
5.4.260.0100.03912.33
5.4.250.0060.04312.33
5.4.240.0200.08412.33
5.4.230.0080.04912.32
5.4.220.0100.05312.32
5.4.210.0120.03812.32
5.4.200.0120.03812.32
5.4.190.0090.03912.32
5.4.180.0050.06612.32
5.4.170.0100.07412.33
5.4.160.0170.05212.33
5.4.150.0240.06112.32
5.4.140.0290.07412.01
5.4.130.0120.06811.99
5.4.120.0140.05511.95
5.4.110.0110.05611.95
5.4.100.0140.04111.95
5.4.90.0180.06611.95
5.4.80.0070.05711.95
5.4.70.0200.07011.95
5.4.60.0130.09911.94
5.4.50.0130.05511.94
5.4.40.0130.06311.93
5.4.30.0160.06411.93
5.4.20.0160.07011.93
5.4.10.0140.04911.93
5.4.00.0160.07311.42
5.3.290.0070.05012.80
5.3.280.0080.06312.71
5.3.270.0120.05812.73
5.3.260.0140.05712.72
5.3.250.0110.05812.72
5.3.240.0150.05412.72
5.3.230.0130.05312.71
5.3.220.0100.05912.68
5.3.210.0110.05912.68
5.3.200.0100.05812.68
5.3.190.0090.05812.68
5.3.180.0110.05912.67
5.3.170.0120.05512.67
5.3.160.0130.05212.68
5.3.150.0110.06312.67
5.3.140.0100.05512.66
5.3.130.0090.06012.66
5.3.120.0150.06812.66
5.3.110.0130.05712.65
5.3.100.0120.05712.12
5.3.90.0140.05412.08
5.3.80.0050.06212.08
5.3.70.0130.05212.07
5.3.60.0110.05312.06
5.3.50.0100.05512.00
5.3.40.0080.05612.00
5.3.30.0160.05011.94
5.3.20.0110.05411.71
5.3.10.0060.05511.69
5.3.00.0120.05311.67
5.2.170.0120.0499.17
5.2.160.0130.0429.17
5.2.150.0110.0449.17
5.2.140.0110.0429.17
5.2.130.0090.0439.13
5.2.120.0260.0359.13
5.2.110.0110.0459.14
5.2.100.0100.0409.13
5.2.90.0120.0469.13
5.2.80.0110.0529.13
5.2.70.0110.0429.13
5.2.60.0070.0499.09
5.2.50.0090.0419.05
5.2.40.0070.0429.03
5.2.30.0070.0509.01
5.2.20.0190.0519.00
5.2.10.0100.0368.91
5.2.00.0070.0498.77
5.1.60.0070.0348.05
5.1.50.0090.0358.05
5.1.40.0070.0338.04
5.1.30.0050.0388.39
5.1.20.0080.0358.41
5.1.10.0140.0328.13
5.1.00.0060.0408.13
5.0.50.0070.0316.61
5.0.40.0150.0386.46
5.0.30.0040.0606.29
5.0.20.0200.0426.26
5.0.10.0050.0526.23
5.0.00.0070.0526.22
4.4.90.0080.0274.78
4.4.80.0150.0424.75
4.4.70.0120.0504.75
4.4.60.0090.0354.75
4.4.50.0070.0244.77
4.4.40.0040.0374.71
4.4.30.0240.0214.76
4.4.20.0280.0404.84
4.4.10.0050.0274.85
4.4.00.0050.0594.76
4.3.110.0050.0244.66
4.3.100.0080.0224.66
4.3.90.0060.0234.63
4.3.80.0060.0344.58
4.3.70.0040.0234.63
4.3.60.0070.0224.63
4.3.50.0060.0244.63
4.3.40.0030.0374.54
4.3.30.0050.0223.28
4.3.20.0060.0213.26
4.3.10.0020.0233.21
4.3.00.0130.01313.47

preferences:
37.76 ms | 400 KiB | 5 Q