3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = 'abc347w83828xyz'; echo $middle = substr($a, 3, strlen($a)-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)
8.3.60.0030.01716.63
8.3.50.0100.01017.98
8.3.40.0100.00618.75
8.3.30.0100.00319.09
8.3.20.0080.00020.14
8.3.10.0000.00821.68
8.3.00.0080.00020.82
8.2.180.0040.01816.75
8.2.170.0070.01022.96
8.2.160.0040.01122.10
8.2.150.0060.01024.18
8.2.140.0080.00024.66
8.2.130.0040.00426.16
8.2.120.0070.00317.80
8.2.110.0060.00320.57
8.2.100.0070.00318.22
8.2.90.0040.00418.90
8.2.80.0030.00517.97
8.2.70.0000.00817.63
8.2.60.0070.00317.78
8.2.50.0050.00518.07
8.2.40.0040.00419.95
8.2.30.0000.00917.91
8.2.20.0040.00417.69
8.2.10.0000.00718.11
8.2.00.0000.00717.72
8.1.280.0150.00325.92
8.1.270.0030.00618.88
8.1.260.0040.00426.35
8.1.250.0070.00028.09
8.1.240.0030.00723.66
8.1.230.0100.00019.02
8.1.220.0050.00317.76
8.1.210.0040.00418.77
8.1.200.0030.00617.23
8.1.190.0030.00617.00
8.1.180.0040.00418.10
8.1.170.0030.00718.61
8.1.160.0000.00721.94
8.1.150.0000.00818.72
8.1.140.0040.00417.22
8.1.130.0030.00517.75
8.1.120.0000.00717.41
8.1.110.0000.00717.36
8.1.100.0050.00217.30
8.1.90.0040.00417.25
8.1.80.0070.00017.27
8.1.70.0000.00717.38
8.1.60.0070.00317.52
8.1.50.0000.00817.45
8.1.40.0050.00317.32
8.1.30.0030.00717.51
8.1.20.0040.00417.47
8.1.10.0000.00817.45
8.1.00.0000.00817.33
8.0.300.0050.00218.77
8.0.290.0000.00716.75
8.0.280.0070.00018.38
8.0.270.0040.00417.25
8.0.260.0060.00017.29
8.0.250.0000.00716.84
8.0.240.0000.00716.98
8.0.230.0070.00016.88
8.0.220.0070.00016.81
8.0.210.0000.00816.76
8.0.200.0070.00016.77
8.0.190.0030.00516.84
8.0.180.0000.00816.77
8.0.170.0000.00916.80
8.0.160.0040.00416.74
8.0.150.0080.00016.74
8.0.140.0050.00316.70
8.0.130.0030.00313.25
8.0.120.0040.00416.71
8.0.110.0000.00716.89
8.0.100.0040.00416.62
8.0.90.0000.00716.76
8.0.80.0090.00616.75
8.0.70.0000.00816.87
8.0.60.0060.00316.81
8.0.50.0050.00216.80
8.0.30.0150.00917.04
8.0.20.0110.01217.40
8.0.10.0000.00716.80
8.0.00.0080.01416.74
7.4.330.0000.00715.03
7.4.320.0030.00316.42
7.4.300.0070.00016.32
7.4.290.0030.00316.39
7.4.280.0000.01116.43
7.4.270.0030.00316.53
7.4.260.0040.00416.41
7.4.250.0040.00416.41
7.4.240.0050.00216.45
7.4.230.0000.00716.46
7.4.220.0090.01116.49
7.4.210.0030.01016.44
7.4.200.0030.00316.60
7.4.160.0170.00016.44
7.4.150.0090.01317.40
7.4.140.0110.01317.86
7.4.130.0100.00716.44
7.4.120.0100.00716.49
7.4.110.0030.01416.38
7.4.100.0040.01416.44
7.4.90.0140.00716.22
7.4.80.0040.02019.39
7.4.70.0130.01016.41
7.4.60.0100.00616.38
7.4.50.0040.00416.38
7.4.40.0120.00616.34
7.4.30.0130.00316.39
7.4.00.0030.01314.86
7.3.330.0060.00013.11
7.3.320.0000.00513.10
7.3.310.0000.00716.22
7.3.300.0030.00316.33
7.3.290.0090.01016.28
7.3.280.0050.01216.27
7.3.270.0150.00617.40
7.3.260.0180.00716.26
7.3.250.0120.00616.21
7.3.240.0120.00416.58
7.3.230.0090.01316.43
7.3.210.0180.00316.28
7.3.200.0070.01019.39
7.3.190.0090.00616.57
7.3.180.0060.00916.31
7.3.170.0140.00916.54
7.3.160.0080.00816.30
7.3.10.0100.00316.54
7.3.00.0040.00816.73
7.2.330.0060.01316.72
7.2.320.0040.01216.64
7.2.310.0160.00016.49
7.2.300.0070.01016.69
7.2.290.0110.00616.65
7.2.130.0040.00817.00
7.2.120.0110.00016.88
7.2.110.0030.00916.89
7.2.100.0070.00416.75
7.2.90.0040.00816.98
7.2.80.0070.00316.92
7.2.70.0030.00616.78
7.2.60.0040.00916.74
7.2.50.0110.00416.97
7.2.40.0030.00816.59
7.2.30.0100.00016.71
7.2.20.0030.00616.64
7.2.10.0040.00816.89
7.2.00.0060.00618.10
7.1.250.0060.00615.87
7.1.200.0070.00715.83
7.1.100.0040.00718.00
7.1.70.0100.00616.86
7.1.60.0100.01319.46
7.1.50.0070.01716.91
7.1.00.0100.06722.34
7.0.200.0050.00514.73
7.0.140.0030.07322.04
7.0.60.0070.08019.92
7.0.50.0170.07317.77
7.0.40.0170.08320.19
7.0.30.0300.04020.01
7.0.20.0200.04320.12
7.0.10.0100.03720.20
7.0.00.0100.04020.00
5.6.210.0100.07020.69
5.6.200.0100.07718.22
5.6.190.0130.07020.64
5.6.180.0470.07720.35
5.6.170.0300.08020.65
5.6.160.0030.06020.33
5.6.150.0070.08018.12
5.6.140.0070.06718.14
5.6.130.0070.07018.18
5.6.120.0070.07721.09
5.6.110.0070.08321.10
5.6.100.0130.08020.97
5.6.90.0170.07721.07
5.6.80.0230.04020.37
5.5.350.0230.04020.31
5.5.340.0070.06017.95
5.5.330.0100.05020.12
5.5.320.0230.04320.28
5.5.310.0230.04320.26
5.5.300.0100.07317.95
5.5.290.0000.04317.93
5.5.280.0070.03720.76
5.5.270.0100.07720.77
5.5.260.0000.07320.68
5.5.250.0070.03720.68
5.5.240.0030.07320.25
5.4.450.0370.06319.63
5.4.440.0230.06019.32
5.4.430.0330.04719.48
5.4.420.0370.04319.23
5.4.410.0370.06718.98
5.4.400.0170.06019.31
5.4.390.0230.04718.47
5.4.380.0170.05718.65
5.4.370.0200.04718.59
5.4.360.0200.05018.45
5.4.350.0200.05718.74
5.4.340.0200.05018.71
5.4.320.0100.06018.69
5.4.310.0070.06318.71
5.4.300.0330.05018.45
5.4.290.0230.04318.62
5.4.280.0200.05318.62
5.4.270.0100.06018.63
5.4.260.0130.05718.61
5.4.250.0200.05318.48
5.4.240.0200.05318.71
5.4.230.0200.05018.58
5.4.220.0330.05018.72
5.4.210.0270.05318.69
5.4.200.0130.05716.55
5.4.190.0200.05018.54
5.4.180.0070.06718.50
5.4.170.0270.04718.61
5.4.160.0200.05318.66
5.4.150.0300.05018.53
5.4.140.0230.04316.30
5.4.130.0300.03716.09
5.4.120.0170.05016.21
5.4.110.0200.04716.15
5.4.100.0170.05316.02
5.4.90.0200.05316.12
5.4.80.0170.05316.17
5.4.70.0170.05016.28
5.4.60.0170.05016.14
5.4.50.0130.05316.22
5.4.40.0200.05016.32
5.4.30.0270.04716.16
5.4.20.0130.05316.17
5.4.10.0170.05016.24
5.4.00.0170.05715.72
5.3.290.0130.05714.64
5.3.280.0170.05314.66
5.3.270.0170.05714.58
5.3.260.0100.06714.58
5.3.250.0170.05314.60
5.3.240.0170.05314.65
5.3.230.0170.05714.48
5.3.220.0170.07314.49
5.3.210.0170.06314.57
5.3.200.0270.05314.49
5.3.190.0270.05314.48
5.3.180.0070.07014.53
5.3.170.0230.06714.53
5.3.160.0330.05014.47
5.3.150.0230.07714.46
5.3.140.0130.06014.52
5.3.130.0130.06714.47
5.3.120.0200.07714.61
5.3.110.0170.05714.54
5.3.100.0230.05014.04
5.3.90.0100.07314.00
5.3.80.0130.05714.00
5.3.70.0170.06313.93
5.3.60.0300.04713.96
5.3.50.0170.05313.87
5.3.40.0230.04713.84
5.3.30.0170.05313.85
5.3.20.0130.05013.59
5.3.10.0230.04313.76
5.3.00.0270.05013.58
5.2.170.0230.04011.11
5.2.160.0030.05011.17
5.2.150.0100.04711.12
5.2.140.0200.03711.29
5.2.130.0100.04711.07
5.2.120.0100.04311.05
5.2.110.0170.04311.14
5.2.100.0030.05011.08
5.2.90.0130.05011.08
5.2.80.0130.04311.04
5.2.70.0070.06311.12
5.2.60.0230.03311.08
5.2.50.0170.04011.07
5.2.40.0130.05011.02
5.2.30.0070.05710.97
5.2.20.0200.03710.90
5.2.10.0130.04310.95
5.2.00.0130.05710.75
5.1.60.0100.03710.04
5.1.50.0130.03710.00
5.1.40.0030.04710.04
5.1.30.0130.05010.31
5.1.20.0230.04310.42
5.1.10.0100.05310.04
5.1.00.0200.03310.08
5.0.50.0230.0308.51
5.0.40.0130.0278.47
5.0.30.0030.0538.33
5.0.20.0270.0208.21
5.0.10.0070.0408.29
5.0.00.0070.0438.18
4.4.90.0030.0275.97
4.4.80.0130.0275.97
4.4.70.0100.0205.97
4.4.60.0030.0275.97
4.4.50.0030.0335.97
4.4.40.0070.0405.97
4.4.30.0070.0235.97
4.4.20.0130.0205.97
4.4.10.0100.0205.98
4.4.00.0070.0435.97
4.3.110.0270.0205.97
4.3.100.0100.0175.97
4.3.90.0030.0235.97
4.3.80.0070.0335.97
4.3.70.0000.0275.97
4.3.60.0130.0175.97
4.3.50.0070.0235.97
4.3.40.0030.0375.97
4.3.30.0070.0205.97
4.3.20.0000.0275.97
4.3.10.0030.0235.97
4.3.00.0030.0276.98

preferences:
46.95 ms | 400 KiB | 5 Q