3v4l.org

run code in 300+ PHP versions simultaneously
<?php for($i = 0; $i <= 62; $i += 6) { $param1 = ($i+6) - 6; $param2 <= $param1 + 6; if($param2 <= 60) { $param2 = ($param1 + 6) - 6; } echo "substr(".$param1.",".$param2.")<br>"; }

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)
8.3.60.0100.01018.55
8.3.50.0110.00722.05
8.3.40.0070.01018.59
8.3.30.0140.00018.67
8.3.20.0040.00418.76
8.3.10.0090.00020.48
8.3.00.0040.00421.62
8.2.180.0110.01116.63
8.2.170.0080.00622.96
8.2.160.0090.00620.27
8.2.150.0000.00824.18
8.2.140.0070.00024.66
8.2.130.0020.00526.16
8.2.120.0120.00319.32
8.2.110.0050.00520.95
8.2.100.0080.00418.03
8.2.90.0000.00819.22
8.2.80.0040.00417.97
8.2.70.0000.00817.63
8.2.60.0060.00317.93
8.2.50.0050.00318.07
8.2.40.0040.00418.16
8.2.30.0000.00819.90
8.2.20.0040.00417.77
8.2.10.0030.00517.68
8.2.00.0000.00817.71
8.1.280.0110.00425.92
8.1.270.0060.00323.99
8.1.260.0080.00026.35
8.1.250.0080.00028.09
8.1.240.0040.00422.62
8.1.230.0110.00017.54
8.1.220.0060.00317.78
8.1.210.0080.00018.77
8.1.200.0030.00617.35
8.1.190.0050.00317.25
8.1.180.0000.00818.10
8.1.170.0000.00818.64
8.1.160.0020.00518.79
8.1.150.0000.00818.48
8.1.140.0000.00717.38
8.1.130.0030.00317.69
8.1.120.0040.00417.45
8.1.110.0000.00717.46
8.1.100.0000.00817.38
8.1.90.0050.00317.48
8.1.80.0000.00717.35
8.1.70.0000.00717.45
8.1.60.0000.00817.51
8.1.50.0030.00617.52
8.1.40.0000.00717.47
8.1.30.0000.00717.61
8.1.20.0090.00017.63
8.1.10.0040.00417.50
8.1.00.0000.00817.29
8.0.300.0040.00418.77
8.0.290.0040.00416.75
8.0.280.0000.00718.44
8.0.270.0000.00717.25
8.0.260.0000.00716.88
8.0.250.0000.00717.02
8.0.240.0040.00416.96
8.0.230.0050.00217.07
8.0.220.0000.00716.84
8.0.210.0000.00716.82
8.0.200.0030.00316.93
8.0.190.0040.00416.90
8.0.180.0040.00416.86
8.0.170.0040.00416.97
8.0.160.0030.00316.97
8.0.150.0040.00416.84
8.0.140.0000.00716.89
8.0.130.0030.00313.37
8.0.120.0040.00417.02
8.0.110.0070.00016.89
8.0.100.0000.00816.96
8.0.90.0040.00416.77
8.0.80.0150.00616.94
8.0.70.0080.00016.84
8.0.60.0050.00216.97
8.0.50.0050.00517.02
8.0.30.0090.01017.21
8.0.20.0090.00917.40
8.0.10.0040.00417.04
8.0.00.0080.01216.74
7.4.330.0000.00513.43
7.4.320.0030.00616.62
7.4.300.0060.00016.57
7.4.290.0000.00716.64
7.4.280.0050.00316.60
7.4.270.0050.00316.62
7.4.260.0050.00013.17
7.4.250.0000.00816.43
7.4.240.0030.00316.51
7.4.230.0080.00016.68
7.4.220.0220.00716.35
7.4.210.0080.00716.50
7.4.200.0030.00316.58
7.4.190.0000.00716.53
7.4.160.0080.00816.31
7.4.150.0150.00317.40
7.4.140.0110.01117.86
7.4.130.0100.01016.44
7.4.120.0090.00816.43
7.4.110.0110.00616.48
7.4.100.0150.00916.69
7.4.90.0070.01116.61
7.4.80.0110.00619.37
7.4.70.0140.00316.43
7.4.60.0060.01216.47
7.4.50.0000.00916.13
7.4.40.0080.00422.27
7.4.30.0030.01416.57
7.4.00.0040.01114.80
7.3.330.0000.00513.27
7.3.320.0030.00313.02
7.3.310.0030.00316.48
7.3.300.0050.00216.23
7.3.290.0070.01016.33
7.3.280.0080.01016.35
7.3.270.0130.01017.40
7.3.260.0100.00718.24
7.3.250.0100.01116.44
7.3.240.0160.00316.56
7.3.230.0060.00916.66
7.3.210.0090.01216.49
7.3.200.0030.01319.39
7.3.190.0140.00916.35
7.3.180.0060.00916.23
7.3.170.0100.01016.50
7.3.160.0070.01016.57
7.3.120.0000.00914.76
7.2.330.0100.00716.71
7.2.320.0030.01316.73
7.2.310.0160.00716.62
7.2.300.0110.00816.49
7.2.290.0060.01016.35
7.2.60.0040.01116.94
7.2.00.0040.01119.21
7.1.200.0040.00715.58
7.1.100.0070.00718.11
7.1.70.0190.00317.10
7.1.60.0090.01519.40
7.1.50.0200.01334.57
7.1.00.0030.07322.45
7.0.200.0000.00916.76
7.0.140.0030.07322.13
7.0.120.0070.06322.22
7.0.110.0000.04322.01
7.0.100.0030.09722.10
7.0.90.0100.07721.97
7.0.80.0000.06022.13
7.0.70.0100.08022.05
7.0.60.0170.04021.93
7.0.50.0000.04322.07
7.0.40.0100.06719.92
7.0.30.0000.04320.03
7.0.20.0070.06319.98
7.0.10.0000.05720.00
7.0.00.0000.05720.15
5.6.280.0000.07721.05
5.6.270.0000.04320.93
5.6.260.0030.08320.82
5.6.250.0000.06320.73
5.6.240.0100.07321.04
5.6.230.0070.04321.03
5.6.220.0030.05720.86
5.6.210.0030.06320.92
5.6.200.0000.04320.88
5.6.190.0070.06720.74
5.6.180.0030.10320.72
5.6.170.0000.04720.98
5.6.160.0130.05020.95
5.6.150.0030.05320.88
5.6.140.0030.05020.94
5.6.130.0070.04320.98
5.6.120.0030.04720.95
5.6.110.0000.04720.87
5.6.100.0030.04020.77
5.6.90.0000.08320.97
5.6.80.0070.05020.33
5.6.70.0000.05720.33
5.6.60.0100.07320.39
5.6.50.0030.08320.15
5.6.40.0000.05020.30
5.6.30.0000.08020.13
5.6.20.0070.07320.32
5.6.10.0030.07020.21
5.6.00.0000.04020.27
5.5.380.0000.05717.46
5.5.370.0000.06017.63
5.5.360.0000.08017.59
5.5.350.0000.04717.43
5.5.340.0030.04018.11
5.5.330.0030.07717.87
5.5.320.0070.04318.25
5.5.310.0030.06018.09
5.5.300.0030.05318.25
5.5.290.0030.08017.98
5.5.280.0070.04718.00
5.5.270.0070.04318.12
5.5.260.0000.04318.09
5.5.250.0130.07317.93
5.5.240.0000.05717.28
5.5.230.0070.07317.24
5.5.220.0030.05317.39
5.5.210.0030.03717.22
5.5.200.0000.07717.34
5.5.190.0030.04017.45
5.5.180.0100.05017.24
5.5.160.0000.07017.44
5.5.150.0030.05317.35
5.5.140.0070.04317.20
5.5.130.0030.05717.15
5.5.120.0000.08017.21
5.5.110.0030.05717.38
5.5.100.0030.04017.38
5.5.90.0000.07017.27
5.5.80.0030.07317.09
5.5.70.0000.04717.41
5.5.60.0030.04317.09
5.5.50.0000.03717.25
5.5.40.0030.03317.11
5.5.30.0030.05017.09
5.5.20.0000.05317.27
5.5.10.0000.06317.08
5.5.00.0030.04317.37
5.4.450.0030.03719.38
5.4.440.0070.04719.26
5.4.430.0030.05019.45
5.4.420.0070.04319.37
5.4.410.0070.07319.30
5.4.400.0030.04018.96
5.4.390.0000.06319.23
5.4.380.0030.07719.22
5.4.370.0070.07019.02
5.4.360.0030.06318.88
5.4.350.0070.04019.20
5.4.340.0030.07319.02
5.4.320.0100.08019.11
5.4.310.0070.06318.94
5.4.300.0000.07318.89
5.4.290.0000.05318.95
5.4.280.0130.06319.11
5.4.270.0070.07019.06
5.4.260.0130.05718.97
5.4.250.0070.03019.10
5.4.240.0100.06319.06
5.4.230.0000.03719.02
5.4.220.0070.07318.97
5.4.210.0100.04318.95
5.4.200.0000.04018.87
5.4.190.0030.03319.07
5.4.180.0000.04018.96
5.4.170.0030.03318.96
5.4.160.0070.03319.17
5.4.150.0000.07018.83
5.4.140.0000.07716.46
5.4.130.0000.03716.49
5.4.120.0070.05316.38
5.4.110.0100.05316.45
5.4.100.0000.06316.22
5.4.90.0000.05016.45
5.4.80.0030.04016.42
5.4.70.0070.04316.42
5.4.60.0000.07316.30
5.4.50.0070.03016.32
5.4.40.0000.04716.11
5.4.30.0000.03316.40
5.4.20.0000.07016.32
5.4.10.0030.06316.28
5.4.00.0100.07315.75
5.3.290.0000.04014.73
5.3.280.0030.04714.50
5.3.270.0000.07014.63
5.3.260.0030.03314.59
5.3.250.0030.07314.44
5.3.240.0000.07714.45
5.3.230.0030.06314.47
5.3.220.0000.07314.57
5.3.210.0030.06714.56
5.3.200.0000.04714.44
5.3.190.0030.03314.43
5.3.180.0000.08314.39
5.3.170.0030.03314.63
5.3.160.0070.06314.34
5.3.150.0030.07014.41
5.3.140.0000.06014.38
5.3.130.0030.06314.39
5.3.120.0030.07314.42
5.3.110.0000.05014.44
5.3.100.0030.06014.13
5.3.90.0070.06013.85
5.3.80.0070.04313.98
5.3.70.0030.05013.90
5.3.60.0000.03713.87
5.3.50.0000.07013.79
5.3.40.0000.07313.82
5.3.30.0100.05013.82
5.3.20.0070.03313.57
5.3.10.0070.06013.59
5.3.00.0030.07013.70
5.2.170.0000.05011.21
5.2.160.0000.04311.08
5.2.150.0030.06011.17
5.2.140.0000.06711.07
5.2.130.0030.05711.12
5.2.120.0000.04711.04
5.2.110.0030.05711.00
5.2.100.0000.05711.01
5.2.90.0000.03311.01
5.2.80.0030.05011.11
5.2.70.0000.03011.02
5.2.60.0030.02711.20
5.2.50.0030.02711.02
5.2.40.0030.05010.88
5.2.30.0000.06011.13
5.2.20.0030.06010.75
5.2.10.0130.04010.73
5.2.00.0030.02710.94
5.1.60.0000.05310.27
5.1.50.0000.05310.27
5.1.40.0030.04310.27
5.1.30.0030.04310.34
5.1.20.0000.05010.38
5.1.10.0030.04710.27
5.1.00.0030.05310.31
5.0.50.0000.02310.27
5.0.40.0000.04010.27
5.0.30.0030.06010.27
5.0.20.0000.04710.27
5.0.10.0000.04310.27
5.0.00.0000.03710.27
4.4.90.0000.01710.27
4.4.80.0030.02710.27
4.4.70.0030.01310.27
4.4.60.0030.02710.27
4.4.50.0000.03010.27
4.4.40.0000.03710.27
4.4.30.0000.03010.27
4.4.20.0030.01310.27
4.4.10.0000.03710.27
4.4.00.0030.05310.27
4.3.110.0030.02010.27
4.3.100.0030.03010.27
4.3.90.0000.02010.27
4.3.80.0070.02310.27
4.3.70.0030.03310.27
4.3.60.0070.02710.27
4.3.50.0000.03710.27
4.3.40.0000.05010.27
4.3.30.0030.01710.27
4.3.20.0030.03710.27
4.3.10.0000.02710.27
4.3.00.0000.01710.27

preferences:
37.09 ms | 401 KiB | 5 Q