3v4l.org

run code in 300+ PHP versions simultaneously
<?php function get_next_colid(string $id): string { $length = \strlen($id); for ($i = $length - 1; $i >= 0; $i--) { if ($id[$i] === "\xff") { $id[$i] = "\0"; continue; } $id[$i] = \chr(\ord($id[$i]) + 1); return $id; } return str_repeat("\0", $length + 1); } var_dump( get_next_colid(get_next_colid('{')), get_next_colid(get_next_colid('<')), get_next_colid(get_next_colid('[')), get_next_colid(get_next_colid('(')), );

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)
8.5.30.0120.00620.09
8.5.20.0100.00719.92
8.5.10.0070.01222.03
8.5.00.0130.01019.89
8.4.180.0130.01019.74
8.4.170.0140.00721.93
8.4.160.0140.00922.10
8.4.150.0060.00616.90
8.4.140.0110.01017.35
8.4.130.0130.00618.55
8.4.120.0140.00524.15
8.4.110.0120.01218.80
8.4.100.0120.00818.93
8.4.90.0110.00520.76
8.4.80.0070.00118.96
8.4.70.0110.00918.84
8.4.60.0120.01218.86
8.4.50.0090.01118.66
8.4.40.0140.00719.44
8.4.30.0090.00620.57
8.4.20.0030.00619.54
8.4.10.0090.00020.37
8.3.300.0130.00819.30
8.3.290.0060.00420.75
8.3.280.0130.00818.24
8.3.270.0130.00716.60
8.3.260.0050.00316.56
8.3.250.0070.00119.12
8.3.240.0110.00816.70
8.3.230.0100.00616.58
8.3.220.0050.00319.06
8.3.210.0130.00716.84
8.3.200.0110.00816.63
8.3.190.0100.00716.98
8.3.180.0150.00318.71
8.3.170.0080.00016.38
8.3.160.0090.00918.91
8.3.150.0040.00416.99
8.3.140.0050.00318.92
8.3.130.0060.00318.56
8.3.120.0090.00018.73
8.3.110.0070.00320.94
8.3.100.0050.00324.06
8.3.90.0150.00026.77
8.3.80.0040.00416.75
8.3.70.0090.00616.58
8.3.60.0110.00418.55
8.3.50.0170.00320.21
8.3.40.0070.01019.39
8.3.30.0090.00619.29
8.3.20.0080.00024.18
8.3.10.0050.00224.66
8.3.00.0100.00026.16
8.2.300.0150.01020.25
8.2.290.0090.00920.68
8.2.280.0100.00820.59
8.2.270.0040.00416.96
8.2.260.0120.00616.47
8.2.250.0030.00616.71
8.2.240.0040.00416.96
8.2.230.0040.00422.58
8.2.220.0060.00337.54
8.2.210.0050.00326.77
8.2.200.0040.00416.38
8.2.190.0120.00616.58
8.2.180.0110.00425.92
8.2.170.0090.00918.96
8.2.160.0070.00722.96
8.2.150.0070.00025.66
8.2.140.0080.00024.66
8.2.130.0050.00326.16
8.2.120.0000.00826.16
8.2.110.0090.00022.13
8.2.100.0080.00317.72
8.2.90.0000.00818.28
8.2.80.0000.00818.97
8.2.70.0030.00517.38
8.2.60.0030.00718.04
8.2.50.0040.00418.07
8.2.40.0000.00718.09
8.2.30.0040.00418.00
8.2.20.0000.00720.31
8.2.10.0000.00718.11
8.2.00.0030.00619.29
8.1.340.0120.00921.99
8.1.330.0120.00716.34
8.1.320.0090.01115.94
8.1.310.0030.00716.08
8.1.300.0150.00018.17
8.1.290.0050.00530.84
8.1.280.0140.00725.92
8.1.270.0160.00323.87
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0090.00023.84
8.1.230.0000.01119.04
8.1.220.0000.00817.74
8.1.210.0080.00018.77
8.1.200.0100.00017.48
8.1.190.0000.00817.22
8.1.180.0000.00818.10
8.1.170.0000.00918.73
8.1.160.0050.00518.89
8.1.150.0030.00618.68
8.1.140.0030.00517.45
8.1.130.0070.00018.80
8.1.120.0000.00717.30
8.1.110.0030.00517.43
8.1.100.0040.00417.35
8.1.90.0000.00817.34
8.1.80.0040.00417.46
8.1.70.0000.00717.44
8.1.60.0040.00417.47
8.1.50.0080.00017.50
8.1.40.0000.00817.55
8.1.30.0020.00817.59
8.1.20.0010.00817.58
8.1.10.0080.00017.51
8.1.00.0050.00417.51
8.0.300.0000.00818.77
8.0.290.0040.00416.75
8.0.280.0030.00318.45
8.0.270.0000.00718.02
8.0.260.0060.00018.33
8.0.250.0000.00716.94
8.0.240.0070.00016.85
8.0.230.0000.00716.95
8.0.220.0070.00016.88
8.0.210.0070.00016.80
8.0.200.0060.00016.96
8.0.190.0050.00316.85
8.0.180.0040.00416.91
8.0.170.0070.00216.84
8.0.160.0030.00516.92
8.0.150.0020.00716.81
8.0.140.0040.00416.76
8.0.130.0000.00816.87
8.0.120.0020.00616.86
8.0.110.0040.00416.82
8.0.100.0060.00216.88
8.0.90.0030.00516.93
8.0.80.0040.00416.88
8.0.70.0050.00316.86
8.0.60.0030.00516.89
8.0.50.0030.00516.83
8.0.30.0030.00516.82
8.0.20.0030.00516.90
8.0.10.0050.00316.93
7.4.330.0000.00515.55
7.4.320.0000.00716.55
7.4.300.0050.00316.49
7.4.290.0080.00016.54
7.4.280.0040.00316.52
7.4.270.0050.00316.59
7.4.260.0010.00616.50
7.4.250.0020.00516.59
7.4.240.0040.00416.57
7.4.230.0030.00516.51
7.4.220.0020.00616.56
7.4.210.0030.00516.52
7.4.200.0040.00316.57
7.4.190.0030.00516.62
7.4.180.0030.00416.57
7.4.160.0020.00616.49
7.4.150.0040.00416.46
7.4.140.0030.00416.43
7.4.130.0050.00316.47
7.4.120.0050.00316.47
7.4.110.0040.00416.44
7.4.100.0010.00716.52
7.4.90.0020.00716.46
7.4.80.0030.00516.55
7.4.70.0060.00116.46
7.4.60.0020.00516.43
7.4.50.0050.00316.34
7.4.40.0030.00416.35
7.4.30.0010.00616.38
7.4.20.0040.00316.50
7.4.10.0040.00416.53
7.4.00.0010.00616.47

preferences:
55.21 ms | 1254 KiB | 5 Q