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 <= $last; $i++) { $bit = isset($map[$i]) ? $map[$i] : 0; $char |= ($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)
8.3.40.0150.00018.96
8.3.30.0110.00318.81
8.3.20.0040.00420.16
8.3.10.0080.00023.56
8.3.00.0050.00320.85
8.2.170.0070.00722.96
8.2.160.0070.00720.28
8.2.150.0080.00024.18
8.2.140.0080.00024.66
8.2.130.0000.00826.16
8.2.120.0000.00722.30
8.2.110.0000.00921.96
8.2.100.0070.00417.84
8.2.90.0000.00819.36
8.2.80.0030.00517.97
8.2.70.0000.00917.75
8.2.60.0000.00918.05
8.2.50.0030.00618.07
8.2.40.0000.00818.22
8.2.30.0040.00418.19
8.2.20.0040.00417.70
8.2.10.0050.00217.69
8.2.00.0040.00417.86
8.1.270.0060.00323.61
8.1.260.0110.00026.35
8.1.250.0040.00428.09
8.1.240.0030.00623.89
8.1.230.0080.00319.00
8.1.220.0040.00417.74
8.1.210.0040.00418.77
8.1.200.0030.00617.48
8.1.190.0030.00517.63
8.1.180.0000.00818.10
8.1.170.0110.00018.58
8.1.160.0040.00421.94
8.1.150.0070.00018.54
8.1.140.0080.00017.38
8.1.130.0030.00317.82
8.1.120.0070.00017.32
8.1.110.0040.00417.39
8.1.100.0070.00017.39
8.1.90.0080.00017.31
8.1.80.0000.00717.29
8.1.70.0030.00317.25
8.1.60.0040.00417.55
8.1.50.0040.00417.52
8.1.40.0030.00617.54
8.1.30.0030.00617.62
8.1.20.0080.00017.66
8.1.10.0040.00417.61
8.1.00.0000.01117.55
8.0.300.0000.00718.77
8.0.290.0070.00017.18
8.0.280.0000.00718.43
8.0.270.0040.00317.25
8.0.260.0050.00316.94
8.0.250.0030.00316.87
8.0.240.0030.00417.06
8.0.230.0050.00316.91
8.0.220.0070.00016.88
8.0.210.0030.00316.94
8.0.200.0030.00517.04
8.0.190.0040.00417.03
8.0.180.0030.00516.98
8.0.170.0000.00816.95
8.0.160.0030.00516.84
8.0.150.0040.00416.88
8.0.140.0040.00416.75
8.0.130.0050.00013.33
8.0.120.0000.00816.76
8.0.110.0040.00416.94
8.0.100.0000.00716.91
8.0.90.0000.00816.94
8.0.80.0110.00716.96
8.0.70.0040.00416.84
8.0.60.0040.00416.84
8.0.50.0040.00416.96
8.0.30.0130.00617.19
8.0.20.0130.00617.40
8.0.10.0070.00017.05
8.0.00.0090.01216.84
7.4.330.0030.00315.09
7.4.320.0030.00316.55
7.4.300.0070.00016.49
7.4.290.0040.00416.47
7.4.280.0030.00716.45
7.4.270.0030.00416.58
7.4.260.0070.00016.35
7.4.250.0030.00316.45
7.4.240.0030.00416.61
7.4.230.0040.00416.59
7.4.220.0120.00616.45
7.4.210.0090.00716.51
7.4.200.0000.00716.41
7.4.190.0000.00716.57
7.4.160.0090.00916.54
7.4.150.0070.01017.40
7.4.140.0090.01017.86
7.4.130.0070.01116.44
7.4.120.0150.00516.64
7.4.110.0100.00716.51
7.4.100.0070.01016.60
7.4.90.0130.00416.56
7.4.80.0070.01319.39
7.4.70.0060.01116.51
7.4.60.0060.00916.42
7.4.50.0000.00916.63
7.4.40.0120.00322.77
7.4.30.0160.00516.39
7.4.00.0090.00515.04
7.3.330.0050.00013.43
7.3.320.0050.00013.31
7.3.310.0030.00316.29
7.3.300.0000.00716.31
7.3.290.0000.01916.45
7.3.280.0080.01016.40
7.3.270.0070.01017.40
7.3.260.0100.00716.52
7.3.250.0130.00316.42
7.3.240.0180.00616.63
7.3.230.0100.00716.42
7.3.210.0130.00616.45
7.3.200.0120.00919.39
7.3.190.0160.00616.48
7.3.180.0160.00616.37
7.3.170.0100.00616.38
7.3.160.0080.00816.63
7.3.120.0030.01314.84
7.3.110.0100.00714.93
7.3.100.0090.00314.71
7.3.90.0090.00914.79
7.3.80.0100.00314.62
7.3.70.0040.01214.91
7.3.60.0040.00414.93
7.3.50.0080.00414.92
7.3.40.0040.00414.89
7.3.30.0070.01014.97
7.3.20.0070.00716.52
7.3.10.0110.00416.66
7.3.00.0130.00316.63
7.2.330.0100.00716.79
7.2.320.0130.01016.74
7.2.310.0120.00616.49
7.2.300.0100.01016.76
7.2.290.0090.00916.39
7.2.250.0000.01815.01
7.2.240.0060.01315.20
7.2.230.0060.00914.99
7.2.220.0030.01215.08
7.2.210.0030.01215.21
7.2.200.0140.00015.08
7.2.190.0040.00414.86
7.2.180.0070.00715.04
7.2.170.0060.00815.04
7.2.130.0070.00716.87
7.2.120.0040.00816.66
7.2.110.0000.01216.77
7.2.100.0030.01017.03
7.2.90.0140.00016.91
7.2.80.0090.00917.04
7.2.70.0090.00617.07
7.2.60.0030.01016.67
7.2.50.0030.00716.88
7.2.40.0030.01116.73
7.2.30.0070.00716.82
7.2.20.0060.00616.78
7.2.10.0030.00916.96
7.2.00.0110.00717.05
7.1.330.0090.00616.03
7.1.320.0040.01115.73
7.1.310.0060.00616.11
7.1.300.0070.00715.52
7.1.290.0040.00815.88
7.1.280.0000.01315.89
7.1.270.0000.01515.81
7.1.260.0070.01115.90
7.1.250.0040.00715.90
7.1.70.0040.00416.93
7.1.60.0040.01419.29
7.1.50.0140.00716.92
7.1.00.0030.07722.45
7.0.200.0000.00816.97
7.0.140.0070.06322.04
7.0.100.0400.07020.03
7.0.90.0370.07719.94
7.0.80.0200.07319.99
7.0.70.0130.07320.00
7.0.60.0200.08019.93
7.0.50.0400.08020.30
7.0.40.0100.07020.13
7.0.30.0070.06320.00
7.0.20.0070.08020.11
7.0.10.0100.07720.12
7.0.00.0070.08320.07
5.6.280.0030.07320.84
5.6.250.0130.08320.72
5.6.240.0100.08320.58
5.6.230.0070.06720.75
5.6.220.0070.06020.59
5.6.210.0070.08720.49
5.6.200.0100.04721.12
5.6.190.0000.07321.17
5.6.180.0130.07321.08
5.6.170.0170.05321.08
5.6.160.0030.05020.95
5.6.150.0030.08321.08
5.6.140.0030.09021.09
5.6.130.0070.07721.05
5.6.120.0100.04721.16
5.6.110.0100.08020.93
5.6.100.0130.08020.94
5.6.90.0070.07721.05
5.6.80.0130.04020.47
5.6.70.0130.07720.49
5.6.60.0130.07720.51
5.6.50.0130.07320.46
5.6.40.0070.08020.40
5.6.30.0070.04320.43
5.6.20.0000.05020.41
5.6.10.0100.03720.48
5.6.00.0130.06020.30
5.5.380.0030.08720.46
5.5.370.0100.08020.55
5.5.360.0100.08020.41
5.5.350.0070.07020.43
5.5.340.0200.07020.80
5.5.330.0130.07020.84
5.5.320.0170.07020.84
5.5.310.0000.05320.89
5.5.300.0130.04720.91
5.5.290.0100.07720.86
5.5.280.0170.07320.76
5.5.270.0070.08320.75
5.5.260.0070.08020.86
5.5.250.0130.08020.64
5.5.240.0130.07720.18
5.5.230.0030.07720.01
5.5.220.0070.08020.21
5.5.210.0130.07020.27
5.5.200.0130.07320.18
5.5.190.0100.05320.22
5.5.180.0070.07720.17
5.5.160.0070.07720.07
5.5.150.0030.07720.26
5.5.140.0130.05320.18
5.5.130.0070.08319.99
5.5.120.0070.07720.11
5.5.110.0030.08720.14
5.5.100.0030.04720.13
5.5.90.0070.08020.07
5.5.80.0100.07720.09
5.5.70.0100.04720.07
5.5.60.0070.06020.09
5.5.50.0100.07720.03
5.5.40.0130.06020.09
5.5.30.0100.07320.14
5.5.20.0000.08020.15
5.5.10.0030.08320.00
5.5.00.0070.05320.02
5.4.450.0070.07319.20
5.4.440.0070.08319.51
5.4.430.0130.07319.35
5.4.420.0100.07719.17
5.4.410.0130.06719.43
5.4.400.0100.07719.15
5.4.390.0070.07718.87
5.4.380.0100.06018.87
5.4.370.0170.06718.95
5.4.360.0070.08019.05
5.4.350.0100.07719.05
5.4.340.0030.07019.20
5.4.320.0130.03719.13
5.4.310.0130.04318.95
5.4.300.0100.06719.09
5.4.290.0030.04719.13
5.4.280.0070.06319.16
5.4.270.0070.07019.17
5.4.260.0030.08319.20
5.4.250.0070.05319.02
5.4.240.0170.06019.04
5.4.230.0130.06719.15
5.4.220.0030.06319.25
5.4.210.0070.07019.03
5.4.200.0000.05019.20
5.4.190.0030.04319.18
5.4.180.0000.08019.11
5.4.170.0170.06319.13
5.4.160.0100.07318.86
5.4.150.0030.05318.93
5.4.140.0000.05716.51
5.4.130.0070.07316.44
5.4.120.0030.04316.24
5.4.110.0030.07016.32
5.4.100.0000.06016.47
5.4.90.0000.04316.41
5.4.80.0030.04016.32
5.4.70.0070.03316.38
5.4.60.0030.03716.45
5.4.50.0030.03716.30
5.4.40.0100.03016.37
5.4.30.0030.03716.48
5.4.20.0070.03716.31
5.4.10.0030.03716.41
5.4.00.0070.03715.88
5.3.290.0000.08314.66
5.3.280.0030.07314.69
5.3.270.0030.05014.73
5.3.260.0070.07314.52
5.3.250.0030.08014.59
5.3.240.0100.06014.63
5.3.230.0000.08314.53
5.3.220.0030.08314.56
5.3.210.0030.08314.59
5.3.200.0170.07014.66
5.3.190.0030.04014.49
5.3.180.0030.07714.66
5.3.170.0030.03714.49
5.3.160.0000.04014.62
5.3.150.0000.04014.67
5.3.140.0030.04014.56
5.3.130.0030.04014.55
5.3.120.0030.03714.53
5.3.110.0100.04014.60
5.3.100.0000.04314.01
5.3.90.0100.03014.00
5.3.80.0070.03014.14
5.3.70.0100.03014.03
5.3.60.0030.03714.12
5.3.50.0000.03714.08
5.3.40.0030.04013.93
5.3.30.0030.03713.91
5.3.20.0070.04013.62
5.3.10.0070.03013.59
5.3.00.0070.06013.70
5.2.170.0000.04311.08
5.2.160.0100.02311.13
5.2.150.0030.03011.19
5.2.140.0070.02311.23
5.2.130.0000.03010.96
5.2.120.0000.03711.11
5.2.110.0070.02011.15
5.2.100.0000.03011.23
5.2.90.0000.03011.24
5.2.80.0000.03311.14
5.2.70.0000.03011.18
5.2.60.0030.03011.07
5.2.50.0030.03011.11
5.2.40.0030.02711.14
5.2.30.0030.03010.98
5.2.20.0030.03010.89
5.2.10.0030.02710.92
5.2.00.0030.02710.75
5.1.60.0030.02010.08
5.1.50.0000.02710.03
5.1.40.0030.0239.86
5.1.30.0070.02010.29
5.1.20.0030.02310.21
5.1.10.0100.02010.13
5.1.00.0030.02010.10
5.0.50.0000.0209.20
5.0.40.0030.0179.20
5.0.30.0030.0279.20
5.0.20.0030.0179.20
5.0.10.0030.0179.20
5.0.00.0000.0339.20
4.4.90.0000.0139.20
4.4.80.0030.0139.20
4.4.70.0000.0139.20
4.4.60.0030.0139.20
4.4.50.0000.0179.20
4.4.40.0000.0239.20
4.4.30.0030.0139.20
4.4.20.0000.0179.20
4.4.10.0000.0179.20
4.4.00.0000.0279.20
4.3.110.0000.0209.20
4.3.100.0000.0179.20
4.3.90.0000.0179.20
4.3.80.0000.0239.20
4.3.70.0000.0179.20
4.3.60.0000.0179.20
4.3.50.0000.0209.20
4.3.40.0000.0279.20
4.3.30.0000.0179.20
4.3.20.0000.0179.20
4.3.10.0000.0179.20
4.3.00.0000.0139.20

preferences:
42.22 ms | 400 KiB | 5 Q