3v4l.org

run code in 300+ PHP versions simultaneously
<?php $dword = '00000000'; for ($i = 0; $i < 100; ++$i){ $dword = dword_inc($dword); echo $dword."\n"; } function dword_inc($dword){ if (empty($dword)){ return '1'; } $last = $dword{strlen($dword)-1}; if ($last == 9){ $last = 'A'; }else{ $last++; } if ($last == 'G'){ $last = 0; if (strlen($dword) > 1){ $dword2 = dword_inc(substr($dword, 0, strlen($dword)-1)); $dword = $dword2.'0'; }else{ $dword = '1'.$dword; } }else{ $dword{strlen($dword)-1} = $last; } return $dword; }

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)
8.3.40.0040.01118.45
8.3.30.0150.00319.02
8.3.20.0040.00420.09
8.3.10.0040.00423.64
8.3.00.0120.00021.02
8.2.170.0170.00022.96
8.2.160.0090.00618.88
8.2.150.0080.00024.18
8.2.140.0080.00024.66
8.2.130.0070.00026.16
8.2.120.0040.00419.13
8.2.110.0060.00321.03
8.2.100.0120.00017.78
8.2.90.0040.00417.47
8.2.80.0000.00917.97
8.2.70.0030.00617.80
8.2.60.0000.00717.80
8.2.50.0040.00418.10
8.2.40.0000.00720.66
8.2.30.0000.00819.23
8.2.20.0070.00017.64
8.2.10.0000.00717.93
8.2.00.0030.00719.43
8.1.270.0030.00523.83
8.1.260.0000.00726.35
8.1.250.0070.00028.09
8.1.240.0040.00424.03
8.1.230.0080.00422.77
8.1.220.0060.00317.74
8.1.210.0130.00018.77
8.1.200.0100.00017.23
8.1.190.0090.00017.10
8.1.180.0030.00518.10
8.1.170.0060.00318.50
8.1.160.0000.00918.71
8.1.150.0000.00720.05
8.1.140.0000.00717.23
8.1.130.0000.00717.71
8.1.120.0000.00717.23
8.1.110.0040.00417.27
8.1.100.0030.00317.31
8.1.90.0040.00417.32
8.1.80.0030.00517.21
8.1.70.0030.00317.21
8.1.60.0000.00717.41
8.1.50.0040.00417.30
8.1.40.0060.00317.32
8.1.30.0040.00417.50
8.1.20.0000.00817.48
8.1.10.0040.00417.27
8.1.00.0090.00017.32
8.0.300.0040.00421.64
8.0.290.0040.00416.58
8.0.280.0030.00318.31
8.0.270.0030.00317.04
8.0.260.0000.00617.13
8.0.250.0030.00316.92
8.0.240.0060.00016.94
8.0.230.0000.00716.79
8.0.220.0070.00016.88
8.0.210.0050.00316.88
8.0.200.0030.00316.82
8.0.190.0030.00416.77
8.0.180.0040.00416.76
8.0.170.0080.00016.74
8.0.160.0040.00316.81
8.0.150.0030.00516.83
8.0.140.0000.00716.82
8.0.130.0000.00613.21
8.0.120.0000.00716.80
8.0.110.0050.00216.66
8.0.100.0070.00016.76
8.0.90.0040.00416.86
8.0.80.0080.00816.74
8.0.70.0040.00416.62
8.0.60.0050.00216.89
8.0.50.0000.00716.91
8.0.30.0070.01216.95
8.0.20.0110.00717.40
8.0.10.0040.00416.87
8.0.00.0120.00516.66
7.4.330.0030.00315.02
7.4.320.0070.00016.60
7.4.300.0060.00016.54
7.4.290.0030.00316.53
7.4.280.0000.00716.66
7.4.270.0070.00016.49
7.4.260.0030.00316.60
7.4.250.0000.00716.61
7.4.240.0050.00316.50
7.4.230.0030.00316.67
7.4.220.0140.00416.56
7.4.210.0080.00816.63
7.4.200.0000.00716.52
7.4.160.0040.01216.68
7.4.150.0100.01017.40
7.4.140.0120.00817.86
7.4.130.0140.00516.59
7.4.120.0140.00716.64
7.4.110.0180.00616.57
7.4.100.0100.01016.66
7.4.90.0060.01216.61
7.4.80.0150.00719.39
7.4.70.0140.01116.71
7.4.60.0060.01316.56
7.4.50.0040.00016.33
7.4.40.0030.01316.51
7.4.30.0120.00416.45
7.4.00.0120.00515.17
7.3.330.0050.00013.35
7.3.320.0060.00013.23
7.3.310.0030.00316.43
7.3.300.0030.00316.43
7.3.290.0050.01016.46
7.3.280.0120.00616.40
7.3.270.0140.00417.40
7.3.260.0160.01016.48
7.3.250.0120.00816.32
7.3.240.0080.00816.66
7.3.230.0070.01016.39
7.3.210.0140.00316.48
7.3.200.0130.00319.39
7.3.190.0120.00816.43
7.3.180.0090.00916.35
7.3.170.0030.01316.37
7.3.160.0110.01216.52
7.3.120.0130.00315.14
7.3.110.0070.01014.83
7.3.100.0060.00614.74
7.3.90.0030.01315.03
7.3.80.0040.01514.87
7.3.70.0070.00714.66
7.3.60.0110.00314.81
7.3.50.0000.01615.05
7.3.40.0080.00314.63
7.3.30.0110.00414.88
7.3.20.0060.00616.72
7.3.10.0090.00316.66
7.3.00.0070.00716.86
7.2.330.0110.00716.71
7.2.320.0040.01416.52
7.2.310.0100.00716.79
7.2.300.0090.00916.85
7.2.290.0070.01016.70
7.2.250.0030.01315.03
7.2.240.0130.00615.28
7.2.230.0070.00715.09
7.2.220.0030.01315.19
7.2.210.0100.00615.24
7.2.200.0000.01415.31
7.2.190.0110.00415.08
7.2.180.0040.01114.97
7.2.170.0040.01115.23
7.2.160.0070.00715.14
7.2.150.0000.01117.10
7.2.140.0120.00317.14
7.2.130.0070.00716.99
7.2.120.0030.01416.95
7.2.110.0030.01316.99
7.2.100.0040.00816.72
7.2.90.0040.01116.99
7.2.80.0110.00716.75
7.2.70.0030.01017.09
7.2.60.0070.00716.94
7.2.50.0060.00916.79
7.2.40.0030.01316.88
7.2.30.0040.00817.00
7.2.20.0090.00616.85
7.2.10.0030.01316.80
7.2.00.0060.00718.04
7.1.330.0040.01415.96
7.1.320.0060.01216.01
7.1.310.0040.01115.93
7.1.300.0030.01215.87
7.1.290.0100.00615.94
7.1.280.0070.00415.57
7.1.270.0030.00616.02
7.1.260.0060.00915.83
7.1.250.0040.00815.75
7.1.240.0100.00315.82
7.1.230.0000.00915.90
7.1.220.0030.00615.85
7.1.210.0060.01015.95
7.1.200.0090.00316.00
7.1.190.0070.00415.96
7.1.180.0030.01015.76
7.1.170.0030.01115.58
7.1.160.0120.00315.77
7.1.150.0070.00315.78
7.1.140.0040.01115.75
7.1.130.0000.01015.93
7.1.120.0090.00615.88
7.1.110.0040.00415.71
7.1.100.0020.01116.83
7.1.90.0030.00616.00
7.1.80.0080.00615.89
7.1.70.0000.00916.35
7.1.60.0090.01117.81
7.1.50.0130.00516.21
7.1.40.0100.00715.91
7.1.30.0030.01315.79
7.1.20.0040.01115.67
7.1.10.0070.00315.98
7.1.00.0060.03918.88
7.0.330.0030.00915.60
7.0.320.0080.00015.36
7.0.310.0090.00015.42
7.0.300.0080.00415.20
7.0.290.0060.00915.40
7.0.280.0030.00615.38
7.0.270.0060.00315.44
7.0.260.0030.00615.44
7.0.250.0040.00815.52
7.0.240.0030.01215.17
7.0.230.0040.01115.45
7.0.220.0000.01115.20
7.0.210.0090.00315.42
7.0.200.0020.00615.93
7.0.190.0070.00715.64
7.0.180.0030.01115.51
7.0.170.0060.01015.23
7.0.160.0000.01015.57
7.0.150.0060.00815.34
7.0.140.0020.04318.78
7.0.130.0030.00615.21
7.0.120.0040.00715.28
7.0.110.0040.01115.28
7.0.100.0000.01215.42
7.0.90.0040.01115.53
7.0.80.0070.00715.52
7.0.70.0000.00815.57
7.0.60.0050.02817.75
7.0.50.0020.03116.78
7.0.40.0110.04416.79
7.0.30.0080.02716.87
7.0.20.0120.03516.89
7.0.10.0150.04016.85
7.0.00.0030.04816.81
5.6.400.0060.00914.56
5.6.390.0000.01614.39
5.6.380.0070.00714.62
5.6.370.0060.00714.11
5.6.360.0100.00314.51
5.6.350.0040.00814.76
5.6.340.0040.01114.45
5.6.330.0070.00314.43
5.6.320.0030.00914.33
5.6.310.0100.00014.50
5.6.300.0070.00714.71
5.6.290.0000.00914.09
5.6.280.0060.03917.85
5.6.270.0030.00614.63
5.6.260.0060.00614.90
5.6.250.0100.00014.46
5.6.240.0000.00914.51
5.6.230.0080.00414.41
5.6.220.0030.01014.59
5.6.210.0050.04117.65
5.6.200.0090.02316.27
5.6.190.0100.03717.35
5.6.180.0050.02317.47
5.6.170.0120.04717.57
5.6.160.0120.02217.48
5.6.150.0050.02416.25
5.6.140.0100.04116.42
5.6.130.0050.04816.26
5.6.120.0120.02917.67
5.6.110.0110.02317.80
5.6.100.0140.03817.90
5.6.90.0050.02217.72
5.6.80.0020.04117.55
5.6.70.0150.00314.27
5.6.60.0070.00714.37
5.6.50.0070.00714.52
5.6.40.0030.01314.46
5.6.30.0030.00714.31
5.6.20.0060.00914.27
5.6.10.0090.00314.41
5.6.00.0040.00414.33
5.5.380.0000.01514.70
5.5.370.0000.01614.16
5.5.360.0100.00714.50
5.5.350.0020.04817.61
5.5.340.0020.02716.25
5.5.330.0050.04217.32
5.5.320.0170.03217.39
5.5.310.0150.04117.31
5.5.300.0040.02416.22
5.5.290.0120.03516.39
5.5.280.0100.02617.39
5.5.270.0060.02117.59
5.5.260.0130.03017.62
5.5.250.0050.04117.33
5.5.240.0120.03917.10
5.5.230.0110.00714.26
5.5.220.0000.01714.34
5.5.210.0030.01414.46
5.5.200.0090.00614.12
5.5.190.0100.00314.60
5.5.180.0110.00014.47
5.5.170.0090.00914.30
5.5.160.0030.00614.47
5.5.150.0030.00714.58
5.5.140.0000.01314.21
5.5.130.0040.00414.61
5.5.120.0000.01114.38
5.5.110.0090.00314.46
5.5.100.0000.01514.58
5.5.90.0040.01114.54
5.5.80.0100.00314.34
5.5.70.0040.01114.20
5.5.60.0000.00814.45
5.5.50.0040.00714.18
5.5.40.0060.00914.16
5.5.30.0090.00614.21
5.5.20.0080.00314.46
5.5.10.0030.01014.48
5.5.00.0030.00614.33
5.4.450.0100.02215.89
5.4.440.0070.02715.92
5.4.430.0110.02015.92
5.4.420.0080.02715.95
5.4.410.0100.02515.72
5.4.400.0120.02215.72
5.4.390.0080.02515.81
5.4.380.0140.02315.76
5.4.370.0120.02415.84
5.4.360.0140.02215.79
5.4.350.0060.02015.80
5.4.340.0060.02115.72
5.4.330.0000.01112.36
5.4.320.0080.02215.68
5.4.310.0160.01815.67
5.4.300.0090.02115.68
5.4.290.0110.01815.60
5.4.280.0120.02015.65
5.4.270.0110.02115.79
5.4.260.0120.02515.76
5.4.250.0130.01815.77
5.4.240.0120.02015.68
5.4.230.0130.02015.83
5.4.220.0110.02015.71
5.4.210.0140.01815.63
5.4.200.0110.02215.79
5.4.190.0090.02015.75
5.4.180.0100.02015.77
5.4.170.0080.02515.74
5.4.160.0120.02415.78
5.4.150.0130.01815.74
5.4.140.0110.01914.41
5.4.130.0160.02014.34
5.4.120.0130.02314.35
5.4.110.0070.02314.39
5.4.100.0150.03214.30
5.4.90.0080.02314.41
5.4.80.0130.01914.27
5.4.70.0100.01914.35
5.4.60.0070.02414.27
5.4.50.0140.01914.44
5.4.40.0150.03014.39
5.4.30.0110.02014.43
5.4.20.0100.01814.42
5.4.10.0100.02414.34
5.4.00.0090.02214.07
5.3.290.0100.02513.54
5.3.280.0130.02113.48
5.3.270.0220.02013.60
5.3.260.0100.02513.60
5.3.250.0130.02213.49
5.3.240.0200.03213.52
5.3.230.0130.02513.49
5.3.220.0120.03013.51
5.3.210.0130.02513.47
5.3.200.0080.03513.58
5.3.190.0120.03113.50
5.3.180.0120.03913.42
5.3.170.0120.02713.57
5.3.160.0150.02613.46
5.3.150.0160.02013.41
5.3.140.0130.03413.42
5.3.130.0130.02313.41
5.3.120.0200.02713.41
5.3.110.0160.04013.48
5.3.100.0100.02313.26
5.3.90.0080.02713.15
5.3.80.0200.02513.15
5.3.70.0170.03813.15
5.3.60.0100.03413.23
5.3.50.0200.03513.12
5.3.40.0150.03213.11
5.3.30.0170.02113.18
5.3.20.0130.02012.98
5.3.10.0170.03612.97
5.3.00.0170.03013.07
5.2.170.0200.03311.13
5.2.160.0300.05311.23
5.2.150.0270.03711.27
5.2.140.0300.04311.05
5.2.130.0170.03311.01
5.2.120.0200.06011.25
5.2.110.0330.03711.11
5.2.100.0230.02711.15
5.2.90.0170.03011.02
5.2.80.0300.04711.32
5.2.70.0300.02311.00
5.2.60.0270.03710.96
5.2.50.0200.04710.97
5.2.40.0200.05711.14
5.2.30.0200.06011.05
5.2.20.0130.03710.88
5.2.10.0170.02710.84
5.2.00.0170.02710.72
5.1.60.0200.0279.93
5.1.50.0170.0379.99
5.1.40.0170.0279.96
5.1.30.0170.02710.44
5.1.20.0130.02710.36
5.1.10.0200.03310.00
5.1.00.0170.0309.97
5.0.50.0100.0378.54
5.0.40.0100.0208.41
5.0.30.0130.0478.41
5.0.20.0130.0308.41
5.0.10.0100.0308.41
5.0.00.0100.0278.41
4.4.90.0070.0178.41
4.4.80.0030.0178.41
4.4.70.0130.0378.41
4.4.60.0070.0178.41
4.4.50.0030.0178.41
4.4.40.0030.0278.41
4.4.30.0070.0138.41
4.4.20.0100.0208.41
4.4.10.0130.0108.41
4.4.00.0170.0208.41
4.3.110.0030.0208.41
4.3.100.0070.0178.41
4.3.90.0100.0138.41
4.3.80.0070.0238.41
4.3.70.0030.0178.41
4.3.60.0070.0178.41
4.3.50.0070.0178.41
4.3.40.0070.0238.41
4.3.30.0000.0178.41
4.3.20.0030.0178.41
4.3.10.0030.0178.41
4.3.00.0000.0178.41

preferences:
52.01 ms | 400 KiB | 5 Q