3v4l.org

run code in 300+ PHP versions simultaneously
<?php function createStringFromMap($map) { $chars = array('C*'); end($map); $last = key($map); for ($i = $j = $char = 0; $i <= $end; $i++) { $char |= ($map[$i] << (7 - $j)); if (++$j === 8) { $chars[] = $char; $j = $char = 0; } } return call_user_func_array('pack', $chars); } $map = array(); $map[1] = 1; $map[9] = 1; $map[17] = 1; $map[25] = 1; echo createStringFromMap($map);

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)
8.3.60.0140.00718.68
8.3.50.0100.00721.98
8.3.40.0070.00719.02
8.3.30.0100.01018.84
8.3.20.0000.00720.11
8.3.10.0080.00022.05
8.3.00.0040.00422.40
8.2.180.0060.00916.88
8.2.170.0100.00722.96
8.2.160.0170.00320.89
8.2.150.0080.00824.18
8.2.140.0080.00024.66
8.2.130.0070.00026.16
8.2.120.0050.00319.49
8.2.110.0090.00022.16
8.2.100.0090.00319.70
8.2.90.0040.00419.21
8.2.80.0050.00519.79
8.2.70.0000.01117.75
8.2.60.0110.00018.16
8.2.50.0060.00318.07
8.2.40.0000.00818.34
8.2.30.0080.00018.12
8.2.20.0050.00217.82
8.2.10.0000.00717.80
8.2.00.0040.00417.79
8.1.280.0030.01025.92
8.1.270.0040.00423.81
8.1.260.0070.00026.35
8.1.250.0040.00428.09
8.1.240.0030.00623.70
8.1.230.0070.00419.07
8.1.220.0030.00617.77
8.1.210.0080.00018.77
8.1.200.0040.00417.23
8.1.190.0000.00917.53
8.1.180.0000.00818.10
8.1.170.0060.00318.63
8.1.160.0070.00022.00
8.1.150.0020.00518.69
8.1.140.0040.00417.32
8.1.130.0030.00317.82
8.1.120.0040.00417.46
8.1.110.0040.00417.43
8.1.100.0000.00717.41
8.1.90.0040.00417.36
8.1.80.0000.00717.45
8.1.70.0040.00417.35
8.1.60.0060.00317.64
8.1.50.0060.00317.46
8.1.40.0000.00717.38
8.1.30.0080.00017.63
8.1.20.0040.00417.65
8.1.10.0000.00817.54
8.1.00.0000.00717.41
8.0.300.0000.00818.77
8.0.290.0040.00417.18
8.0.280.0000.00718.43
8.0.270.0000.00717.30
8.0.260.0000.00716.92
8.0.250.0030.00316.97
8.0.240.0040.00417.02
8.0.230.0070.00016.91
8.0.220.0000.00716.86
8.0.210.0000.00716.93
8.0.200.0060.00016.87
8.0.190.0000.00916.89
8.0.180.0000.00716.96
8.0.170.0090.00016.99
8.0.160.0000.00717.01
8.0.150.0070.00016.84
8.0.140.0050.00216.93
8.0.130.0030.00313.39
8.0.120.0040.00416.88
8.0.110.0080.00016.91
8.0.100.0000.00717.05
8.0.90.0040.00416.76
8.0.80.0070.00716.95
8.0.70.0000.00716.83
8.0.60.0000.00716.95
8.0.50.0070.00016.80
8.0.30.0190.00217.09
8.0.20.0130.00817.40
8.0.10.0000.00716.93
8.0.00.0110.01116.86
7.4.330.0030.00315.13
7.4.320.0000.00616.39
7.4.300.0030.00316.59
7.4.290.0070.00016.64
7.4.280.0030.00316.50
7.4.270.0000.00716.52
7.4.260.0040.00416.62
7.4.250.0070.00016.48
7.4.240.0040.00416.62
7.4.230.0000.00716.61
7.4.220.0090.00916.69
7.4.210.0040.01216.57
7.4.200.0080.00016.47
7.4.190.0030.00316.68
7.4.160.0090.01316.61
7.4.150.0200.00017.40
7.4.140.0150.00417.86
7.4.130.0100.01116.57
7.4.120.0080.00816.40
7.4.110.0140.00316.44
7.4.100.0110.00716.57
7.4.90.0090.00916.61
7.4.80.0000.02216.65
7.4.70.0100.00716.54
7.4.60.0090.00916.47
7.4.50.0000.00816.41
7.4.40.0090.00622.77
7.4.30.0080.00816.36
7.4.00.0040.00814.83
7.3.330.0050.00013.30
7.3.320.0000.00713.43
7.3.310.0030.00316.25
7.3.300.0000.00716.45
7.3.290.0090.00616.45
7.3.280.0080.00916.45
7.3.270.0130.00317.40
7.3.260.0060.01216.57
7.3.250.0070.01016.60
7.3.240.0170.00316.41
7.3.230.0110.00516.39
7.3.210.0110.00716.45
7.3.200.0160.00819.39
7.3.190.0090.00916.46
7.3.180.0080.00816.34
7.3.170.0060.01316.41
7.3.160.0150.00316.46
7.3.120.0030.01014.93
7.3.10.0080.00616.70
7.3.00.0070.00716.78
7.2.330.0000.01816.68
7.2.320.0140.01116.74
7.2.310.0110.00716.68
7.2.300.0030.01616.72
7.2.290.0060.01016.59
7.2.130.0060.01216.91
7.2.120.0130.00317.03
7.2.110.0110.00316.94
7.2.100.0030.01316.95
7.2.90.0080.00316.97
7.2.80.0070.00416.93
7.2.70.0070.00717.00
7.2.60.0060.00716.74
7.2.50.0040.01116.89
7.2.40.0120.00317.02
7.2.30.0060.00916.96
7.2.20.0030.00716.89
7.2.10.0090.00016.76
7.2.00.0020.01418.33
7.1.250.0120.00315.94
7.1.200.0070.00715.76
7.1.100.0030.00618.42
7.1.70.0040.00417.36
7.1.60.0040.00716.90
7.1.50.0170.01016.71
7.1.00.0030.07722.33
7.0.200.0090.00616.68
7.0.140.0030.07722.18
7.0.60.0100.07719.95
7.0.50.0070.06717.82
7.0.40.0070.04020.02
7.0.30.0270.04020.08
7.0.20.0270.08320.30
7.0.10.0300.08020.08
7.0.00.0000.04320.29
5.6.280.0030.04720.87
5.6.210.0130.06020.57
5.6.200.0070.04018.16
5.6.190.0070.08320.57
5.6.180.3100.04720.55
5.6.170.0230.05020.57
5.6.160.0130.08320.39
5.6.150.0070.04318.21
5.6.140.0070.08318.30
5.6.130.0030.04318.18
5.6.120.0170.07321.02
5.6.110.0100.07721.12
5.6.100.0070.07721.13
5.6.90.0230.06721.13
5.6.80.0000.04720.41
5.6.70.3130.04020.42
5.5.350.0100.03720.39
5.5.340.0030.04318.09
5.5.330.0100.07320.37
5.5.320.0330.08020.28
5.5.310.0270.05720.51
5.5.300.0000.04318.08
5.5.290.0000.09017.95
5.5.280.0100.07720.73
5.5.270.0100.08020.87
5.5.260.0130.07720.68
5.5.250.0070.04320.69
5.5.240.0230.07020.19
5.4.450.0500.04319.15
5.4.440.0500.04319.19
5.4.430.0500.03019.27
5.4.420.0700.04019.61
5.4.410.0730.03019.05
5.4.400.0270.04719.33
5.4.390.0200.06319.13
5.4.380.0630.03719.31
5.4.370.0600.04018.96
5.4.360.1030.04319.21
5.4.350.0430.03719.22
5.4.340.0600.04019.17
5.4.320.0130.04019.06
5.4.310.0770.04719.02
5.4.300.0630.04319.22
5.4.290.0600.03319.22
5.4.280.0600.03718.98
5.4.270.0800.03318.96
5.4.260.0870.03718.82
5.4.250.0970.03018.96
5.4.240.0630.04719.04
5.4.230.0600.04319.13
5.4.220.0630.03719.01
5.4.210.0370.03718.82
5.4.200.0670.04719.30
5.4.190.0330.03719.16
5.4.180.0270.05018.93
5.4.170.0400.04719.02
5.4.160.0670.03018.98
5.4.150.0670.04018.82
5.4.140.0530.03316.50
5.4.130.0530.03016.37
5.4.120.0670.03316.49
5.4.110.0000.03316.54
5.4.100.0830.04016.54
5.4.90.0670.03716.24
5.4.80.0730.03316.50
5.4.70.0470.03316.41
5.4.60.0600.04016.41
5.4.50.0570.03316.25
5.4.40.0870.03016.49
5.4.30.0630.03716.54
5.4.20.0770.04016.40
5.4.10.0930.04016.49
5.4.00.0270.03316.23
5.3.290.0870.03016.23
5.3.280.0400.03716.23
5.3.270.0530.04016.23
5.3.260.0230.04016.23
5.3.250.0130.04016.23
5.3.240.0300.03016.23
5.3.230.0470.03316.23
5.3.220.0870.03016.23
5.3.210.0630.03316.23
5.3.200.0670.03316.23
5.3.190.0930.02316.23
5.3.180.0830.03316.23
5.3.170.0530.03316.23
5.3.160.0600.04016.23
5.3.150.0770.04716.23
5.3.140.0330.03316.23
5.3.130.1030.04716.23
5.3.120.0800.04016.23
5.3.110.0800.03716.23
5.3.100.0430.03716.23
5.3.90.0330.02716.23
5.3.80.0930.04316.23
5.3.70.0700.03316.23
5.3.60.0570.03716.23
5.3.50.0530.03316.23
5.3.40.0570.03716.23
5.3.30.1000.03316.23
5.3.20.0370.03016.23
5.3.10.0770.04716.23
5.3.00.0530.03316.23
5.2.170.0670.03016.23
5.2.160.0500.02316.23
5.2.150.0830.02016.23
5.2.140.0270.03316.23
5.2.130.0500.02016.23
5.2.120.0470.04016.23
5.2.110.0570.02716.23
5.2.100.0470.03016.23
5.2.90.0430.02716.23
5.2.80.0630.03716.23
5.2.70.0370.02716.23
5.2.60.0230.03016.23
5.2.50.0230.03016.23
5.2.40.0330.02716.23
5.2.30.0400.02716.23
5.2.20.0170.03316.23
5.2.10.0130.02716.23
5.2.00.0130.03316.23
5.1.60.0470.03016.23
5.1.50.0200.02316.23
5.1.40.0070.03316.23
5.1.30.0400.02016.23
5.1.20.0670.01716.23
5.1.10.0500.02016.23
5.1.00.0300.02316.23
5.0.50.0170.02316.23
5.0.40.0100.01716.23
5.0.30.0200.02716.23
5.0.20.0100.01716.23
5.0.10.0100.02016.23
5.0.00.0370.02716.23
4.4.90.0100.01316.23
4.4.80.0170.02016.23
4.4.70.0170.01716.23
4.4.60.0200.01316.23
4.4.50.0030.02016.23
4.4.40.0230.02716.23
4.4.30.0230.01016.23
4.4.20.0170.01016.23
4.4.10.0230.01016.23
4.4.00.0270.02316.23
4.3.110.0370.01316.23
4.3.100.0330.01716.23
4.3.90.0130.02716.23
4.3.80.0030.02316.23
4.3.70.0230.01316.23
4.3.60.0170.02316.23
4.3.50.0130.01716.23
4.3.40.0070.02316.23
4.3.30.0130.01316.23
4.3.20.0130.01316.23
4.3.10.0030.01316.23
4.3.00.0100.01716.23

preferences:
44.78 ms | 401 KiB | 5 Q