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++) { $char |= ($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)
8.3.40.0090.00618.79
8.3.30.0060.00919.21
8.3.20.0000.00720.21
8.3.10.0060.00323.71
8.3.00.0040.00419.50
8.2.170.0110.00422.96
8.2.160.0110.00420.53
8.2.150.0070.00024.18
8.2.140.0070.00024.66
8.2.130.0080.00026.16
8.2.120.0140.00022.08
8.2.110.0060.00322.05
8.2.100.0040.00717.91
8.2.90.0000.00819.31
8.2.80.0050.00317.97
8.2.70.0000.00817.63
8.2.60.0000.00918.03
8.2.50.0050.00318.07
8.2.40.0000.00818.18
8.2.30.0040.00418.00
8.2.20.0040.00417.80
8.2.10.0020.00518.13
8.2.00.0020.00517.77
8.1.270.0080.00021.96
8.1.260.0000.00826.35
8.1.250.0090.00028.09
8.1.240.0030.00623.88
8.1.230.0040.00719.22
8.1.220.0090.00017.79
8.1.210.0090.00018.77
8.1.200.0030.00717.36
8.1.190.0000.00817.53
8.1.180.0040.00418.10
8.1.170.0040.00418.74
8.1.160.0040.00421.96
8.1.150.0000.00718.54
8.1.140.0000.00717.38
8.1.130.0070.00017.81
8.1.120.0040.00417.40
8.1.110.0000.00717.35
8.1.100.0020.00517.29
8.1.90.0040.00417.39
8.1.80.0050.00317.38
8.1.70.0070.00017.36
8.1.60.0040.00417.51
8.1.50.0030.00517.39
8.1.40.0070.00017.41
8.1.30.0030.00517.55
8.1.20.0050.00317.54
8.1.10.0050.00217.45
8.1.00.0040.00417.52
8.0.300.0000.00818.77
8.0.290.0070.00017.18
8.0.280.0000.00818.30
8.0.270.0000.00717.13
8.0.260.0030.00316.79
8.0.250.0000.00616.99
8.0.240.0050.00317.05
8.0.230.0030.00316.91
8.0.220.0030.00316.93
8.0.210.0030.00316.92
8.0.200.0070.00017.04
8.0.190.0040.00417.00
8.0.180.0050.00216.98
8.0.170.0060.00316.92
8.0.160.0000.00716.90
8.0.150.0040.00416.89
8.0.140.0040.00416.82
8.0.130.0040.00413.38
8.0.120.0040.00416.80
8.0.110.0000.00816.88
8.0.100.0050.00216.82
8.0.90.0050.00216.91
8.0.80.0120.00316.86
8.0.70.0000.00716.94
8.0.60.0000.00716.95
8.0.50.0000.00716.70
8.0.30.0160.00717.17
8.0.20.0130.00817.40
8.0.10.0040.00417.04
8.0.00.0080.01016.63
7.4.330.0000.00515.20
7.4.320.0000.00616.58
7.4.300.0000.00616.44
7.4.290.0070.00016.46
7.4.280.0030.00316.56
7.4.270.0030.00316.61
7.4.260.0030.00316.50
7.4.250.0060.00316.47
7.4.240.0000.00716.48
7.4.230.0030.00316.57
7.4.220.0090.00916.53
7.4.210.0080.00616.50
7.4.200.0040.00416.70
7.4.190.0040.00416.68
7.4.160.0090.00916.59
7.4.150.0180.00917.40
7.4.140.0090.00917.86
7.4.130.0050.01116.49
7.4.120.0130.00516.58
7.4.110.0070.01016.57
7.4.100.0090.01216.41
7.4.90.0140.00616.33
7.4.80.0120.00819.39
7.4.70.0100.00716.52
7.4.60.0030.01316.49
7.4.50.0030.00516.20
7.4.40.0060.00922.77
7.4.30.0030.01316.59
7.4.00.0030.01314.83
7.3.330.0030.00313.41
7.3.320.0030.00313.20
7.3.310.0040.00416.43
7.3.300.0020.00516.48
7.3.290.0100.00716.42
7.3.280.0060.01016.45
7.3.270.0110.00517.40
7.3.260.0160.00816.41
7.3.250.0090.01216.52
7.3.240.0130.00916.73
7.3.230.0100.01016.54
7.3.210.0060.01316.48
7.3.200.0090.00819.39
7.3.190.0110.01116.43
7.3.180.0080.01116.64
7.3.170.0140.00316.38
7.3.160.0100.00616.43
7.3.120.0110.00415.02
7.2.330.0120.00616.79
7.2.320.0120.00616.58
7.2.310.0070.01016.47
7.2.300.0090.00916.79
7.2.290.0060.01116.43
7.2.00.0060.00319.43
7.1.100.0040.00718.04
7.1.70.0000.00917.09
7.1.60.0070.01719.33
7.1.50.0060.01917.13
7.1.00.0070.07022.40
7.0.200.0110.00416.79
7.0.140.0030.07322.00
7.0.100.0100.07719.91
7.0.90.0070.08019.88
7.0.80.0030.08319.85
7.0.70.0170.06720.02
7.0.60.0070.08019.96
7.0.50.0130.05720.39
7.0.40.0100.08320.08
7.0.30.0170.05320.09
7.0.20.0100.06320.09
7.0.10.0030.04719.99
7.0.00.0070.04320.04
5.6.280.0000.07721.10
5.6.250.0130.06720.60
5.6.240.0070.08020.58
5.6.230.0200.07720.63
5.6.220.0000.05320.66
5.6.210.0170.07320.63
5.6.200.0100.06721.01
5.6.190.0100.08320.94
5.6.180.0070.05020.96
5.6.170.0070.04321.04
5.6.160.0070.04321.18
5.6.150.0070.04021.02
5.6.140.0070.04020.96
5.6.130.0130.04021.04
5.6.120.0030.04020.93
5.6.110.0030.04320.95
5.6.100.0170.06021.03
5.6.90.0070.04020.95
5.6.80.0070.03720.40
5.6.70.0070.04020.49
5.6.60.0030.04020.43
5.6.50.0070.03720.45
5.6.40.0070.03720.47
5.6.30.0070.03720.43
5.6.20.0000.04320.37
5.6.10.0070.03720.40
5.6.00.0070.03720.29
5.5.380.0130.04020.41
5.5.370.0130.07320.43
5.5.360.0030.08320.35
5.5.350.0070.08320.37
5.5.340.0070.07020.64
5.5.330.0200.03320.80
5.5.320.0070.05320.87
5.5.310.0070.04020.93
5.5.300.0030.04320.76
5.5.290.0100.03320.90
5.5.280.0030.04320.89
5.5.270.0100.03720.85
5.5.260.0070.04320.72
5.5.250.0100.06020.45
5.5.240.0130.06720.31
5.5.230.0070.04020.15
5.5.220.0070.05320.30
5.5.210.0030.04020.30
5.5.200.0030.05720.25
5.5.190.0030.04020.15
5.5.180.0070.03320.27
5.5.160.0000.04320.23
5.5.150.0030.04719.99
5.5.140.0030.04320.26
5.5.130.0100.03320.13
5.5.120.0070.03720.27
5.5.110.0070.03719.98
5.5.100.0000.04719.93
5.5.90.0070.03720.15
5.5.80.0070.04020.04
5.5.70.0070.03720.07
5.5.60.0000.04720.11
5.5.50.0000.04020.09
5.5.40.0000.04320.03
5.5.30.0000.04020.08
5.5.20.0070.08020.03
5.5.10.0030.04319.98
5.5.00.0030.07720.02
5.4.450.0000.05019.55
5.4.440.0030.05319.52
5.4.430.0030.04019.45
5.4.420.0030.03719.23
5.4.410.0030.05719.07
5.4.400.0030.04018.91
5.4.390.0070.03719.03
5.4.380.0070.03319.03
5.4.370.0030.07019.16
5.4.360.0000.04019.18
5.4.350.0130.02319.03
5.4.340.0070.03319.05
5.4.320.0070.03719.03
5.4.310.0030.03319.05
5.4.300.0030.03319.07
5.4.290.0030.04018.84
5.4.280.0100.03319.13
5.4.270.0030.03319.16
5.4.260.0100.03019.11
5.4.250.0100.03018.84
5.4.240.0070.03319.04
5.4.230.0070.06719.15
5.4.220.0100.03019.02
5.4.210.0070.06019.09
5.4.200.0000.04019.04
5.4.190.0030.06719.23
5.4.180.0000.08319.11
5.4.170.0100.03719.17
5.4.160.0000.08019.12
5.4.150.0100.07319.12
5.4.140.0100.06016.46
5.4.130.0200.03316.45
5.4.120.0070.07016.24
5.4.110.0030.04316.38
5.4.100.0070.07316.43
5.4.90.0070.06716.24
5.4.80.0030.04016.42
5.4.70.0030.08016.34
5.4.60.0000.07716.48
5.4.50.0200.05716.45
5.4.40.0030.03716.49
5.4.30.0070.04716.40
5.4.20.0070.06716.43
5.4.10.0100.07316.48
5.4.00.0170.06315.93
5.3.290.0070.03714.63
5.3.280.0030.03714.52
5.3.270.0100.05714.71
5.3.260.0070.07014.63
5.3.250.0070.04314.53
5.3.240.0070.07314.61
5.3.230.0030.07714.59
5.3.220.0000.07714.68
5.3.210.0070.04014.69
5.3.200.0030.07714.66
5.3.190.0100.04714.70
5.3.180.0070.03714.48
5.3.170.0070.07314.62
5.3.160.0000.07014.63
5.3.150.0030.07714.70
5.3.140.0070.05714.49
5.3.130.0100.04014.47
5.3.120.0170.07314.55
5.3.110.0130.06714.52
5.3.100.0030.08014.02
5.3.90.0100.06714.10
5.3.80.0070.07314.13
5.3.70.0170.08014.07
5.3.60.0100.06714.02
5.3.50.0000.08014.08
5.3.40.0100.03714.08
5.3.30.0070.07313.79
5.3.20.0070.04313.68
5.3.10.0070.07013.59
5.3.00.0130.07013.53
5.2.170.0070.06012.40
5.2.160.0130.02312.40
5.2.150.0000.06712.40
5.2.140.0030.06012.40
5.2.130.0030.06312.40
5.2.120.0030.06712.40
5.2.110.0070.06312.40
5.2.100.0030.05012.40
5.2.90.0070.06012.40
5.2.80.0100.05312.40
5.2.70.0000.05012.40
5.2.60.0100.05712.40
5.2.50.0030.04012.40
5.2.40.0070.04012.40
5.2.30.0030.06012.40
5.2.20.0070.05312.40
5.2.10.0030.06012.40
5.2.00.0100.06012.40
5.1.60.0070.03712.40
5.1.50.0030.05312.40
5.1.40.0070.05012.40
5.1.30.0130.04712.40
5.1.20.0100.02312.40
5.1.10.0000.06012.40
5.1.00.0030.03012.40
5.0.50.0030.04312.40
5.0.40.0000.04712.40
5.0.30.0030.06312.40
5.0.20.0030.04012.40
5.0.10.0030.04312.40
5.0.00.0030.06712.40
4.4.90.0070.03012.40
4.4.80.0100.01012.40
4.4.70.0000.02012.40
4.4.60.0030.03712.40
4.4.50.0030.03712.40
4.4.40.0100.04312.40
4.4.30.0030.03012.40
4.4.20.0030.03312.40
4.4.10.0070.03012.40
4.4.00.0000.04312.40
4.3.110.0070.01312.40
4.3.100.0030.03012.40
4.3.90.0070.03012.40
4.3.80.0030.05312.40
4.3.70.0000.03712.40
4.3.60.0030.03312.40
4.3.50.0000.03312.40
4.3.40.0000.05312.40
4.3.30.0000.03312.40
4.3.20.0000.03712.40
4.3.10.0030.03012.40
4.3.00.0030.03312.40

preferences:
46.47 ms | 400 KiB | 5 Q