3v4l.org

run code in 300+ PHP versions simultaneously
<?php function calculateLevels( $total, $totalPerLevel = 2, $iteration = 0 ) { if( $total <= 1 ) { return $iteration; } else { if ( $totalPerLevel === 1 ) { $total--; } return calculateLevels( (int) ( $total / $totalPerLevel ), $totalPerLevel, $iteration + 1 ); } } $x = 15; echo "$x - " .calculateLevels( $x,2 ) . "\n"; $x = 15; echo "$x - " .calculateLevels( $x,5 ) . "\n"; $x = 15; echo "$x - " .calculateLevels( $x,3 ) . "\n"; $x = 15; echo "$x - " .calculateLevels( $x,1 ) . "\n"; $x = 15; echo "$x - " .calculateLevels( $x,8 ) . "\n"; $x = 15; echo "$x - " .calculateLevels( $x,10 ) . "\n";

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)
8.3.60.0070.01418.14
8.3.50.0070.01221.98
8.3.40.0150.00718.76
8.3.30.0070.00719.14
8.3.20.0100.00720.34
8.3.10.0080.00023.48
8.3.00.0110.00820.84
8.2.180.0150.00616.38
8.2.170.0030.01322.96
8.2.160.0100.01020.38
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0140.00426.16
8.2.120.0040.00420.89
8.2.110.0070.00320.35
8.2.100.0070.00417.91
8.2.90.0050.00319.23
8.2.80.0040.00417.97
8.2.70.0060.00317.63
8.2.60.0100.00017.90
8.2.50.0050.00318.07
8.2.40.0040.00419.95
8.2.30.0030.00618.14
8.2.20.0000.00717.67
8.2.10.0050.00218.04
8.2.00.0040.00417.80
8.1.280.0100.01325.92
8.1.270.0140.00722.02
8.1.260.0070.01126.35
8.1.250.0000.00728.09
8.1.240.0070.00323.83
8.1.230.0080.00317.42
8.1.220.0000.00917.76
8.1.210.0040.00418.77
8.1.200.0050.00517.22
8.1.190.0060.00317.35
8.1.180.0040.00418.10
8.1.170.0000.00818.52
8.1.160.0070.00021.95
8.1.150.0050.00318.69
8.1.140.0040.00417.38
8.1.130.0060.00017.79
8.1.120.0000.00717.55
8.1.110.0050.00317.39
8.1.100.0000.00717.48
8.1.90.0070.00017.40
8.1.80.0050.00217.41
8.1.70.0000.00717.32
8.1.60.0090.00017.48
8.1.50.0040.00417.48
8.1.40.0040.00417.48
8.1.30.0110.00017.64
8.1.20.0030.00617.66
8.1.10.0030.00517.41
8.1.00.0040.00417.39
8.0.300.0040.00418.77
8.0.290.0000.00816.63
8.0.280.0030.00318.36
8.0.270.0040.00417.17
8.0.260.0060.00017.18
8.0.250.0030.00316.84
8.0.240.0060.00316.98
8.0.230.0070.00017.00
8.0.220.0030.00316.87
8.0.210.0070.00016.89
8.0.200.0030.00316.94
8.0.190.0040.00417.02
8.0.180.0070.00016.82
8.0.170.0050.00316.91
8.0.160.0000.00816.77
8.0.150.0040.00316.81
8.0.140.0040.00416.75
8.0.130.0060.00313.38
8.0.120.0000.00916.86
8.0.110.0020.00516.88
8.0.100.0040.00416.77
8.0.90.0040.00416.76
8.0.80.0100.01116.97
8.0.70.0070.00016.97
8.0.60.0040.00416.80
8.0.50.0040.00416.77
8.0.30.0150.00716.98
8.0.20.0130.00917.41
8.0.10.0050.00317.01
8.0.00.0100.01016.69
7.4.330.0060.00015.05
7.4.320.0060.00316.45
7.4.300.0000.00716.52
7.4.290.0000.00916.59
7.4.280.0050.00316.52
7.4.270.0040.00416.50
7.4.260.0030.00516.50
7.4.250.0050.00316.44
7.4.240.0000.00716.52
7.4.230.0030.00316.57
7.4.220.0100.00716.49
7.4.210.0070.00716.68
7.4.200.0040.00416.72
7.4.160.0090.00616.54
7.4.150.0150.00917.40
7.4.140.0080.00817.86
7.4.130.0110.00616.66
7.4.120.0060.01016.46
7.4.110.0050.01316.42
7.4.100.0220.00016.63
7.4.90.0040.01416.40
7.4.80.0220.00019.39
7.4.70.0100.00616.50
7.4.60.0070.01016.40
7.4.50.0040.00416.63
7.4.40.0110.01016.41
7.4.30.0090.00616.53
7.4.10.0060.01314.80
7.4.00.0090.00315.11
7.3.330.0040.00413.16
7.3.320.0000.00513.40
7.3.310.0040.00416.38
7.3.300.0030.00316.26
7.3.290.0070.01016.35
7.3.280.0070.01116.36
7.3.270.0030.01417.40
7.3.260.0120.00616.34
7.3.250.0090.00716.50
7.3.240.0090.00816.35
7.3.230.0140.01116.57
7.3.210.0090.00916.38
7.3.200.0070.01419.39
7.3.190.0110.00616.45
7.3.180.0040.01816.48
7.3.170.0030.01316.51
7.3.160.0100.00616.39
7.3.130.0000.01414.70
7.3.120.0010.01314.98
7.3.110.0000.01914.94
7.3.100.0060.00614.75
7.3.90.0090.00614.95
7.3.80.0000.01514.99
7.3.70.0100.00315.03
7.3.60.0070.00714.89
7.3.50.0000.00914.89
7.3.40.0070.00714.80
7.3.30.0080.00414.74
7.3.20.0040.01116.57
7.3.10.0030.01016.57
7.3.00.0000.01216.68
7.2.330.0140.00516.43
7.2.320.0000.01616.59
7.2.310.0050.01116.77
7.2.300.0160.00016.79
7.2.290.0140.00616.54
7.2.260.0100.00714.89
7.2.250.0080.00715.21
7.2.240.0030.01014.93
7.2.230.0000.00915.02
7.2.220.0090.00614.68
7.2.210.0030.01214.98
7.2.200.0090.00615.24
7.2.190.0100.00314.97
7.2.180.0040.00715.08
7.2.170.0000.01215.09
7.2.160.0030.00614.97
7.2.150.0090.00617.00
7.2.140.0030.00916.85
7.2.130.0030.00716.90
7.2.120.0060.00616.95
7.2.110.0070.01017.05
7.2.100.0060.00617.08
7.2.90.0070.00716.95
7.2.80.0090.00616.63
7.2.70.0060.00616.79
7.2.60.0030.00616.86
7.2.50.0090.00617.00
7.2.40.0060.00316.89
7.2.30.0000.01516.92
7.2.20.0070.00716.95
7.2.10.0030.00716.78
7.2.00.0030.00917.00
7.1.330.0100.00315.97
7.1.320.0090.00615.50
7.1.310.0060.00615.92
7.1.300.0040.00715.45
7.1.290.0030.01015.55
7.1.280.0030.01515.52
7.1.270.0070.00415.60
7.1.260.0060.01015.90
7.1.250.0070.00315.99
7.1.240.0040.01115.75
7.1.230.0030.00815.86
7.1.220.0030.00615.51
7.1.210.0030.00915.85
7.1.200.0080.00015.73
7.1.190.0000.01315.79
7.1.180.0000.01315.98
7.1.170.0090.00015.97
7.1.160.0000.00915.77
7.1.150.0000.01315.88
7.1.140.0090.00315.71
7.1.130.0090.00316.00
7.1.120.0040.01115.88
7.1.110.0030.01515.84
7.1.100.0060.00615.76
7.1.90.0090.00615.92
7.1.80.0040.01115.72
7.1.70.0070.00616.42
7.1.60.0070.01017.76
7.1.50.0100.01016.41
7.1.40.0060.00815.99
7.1.30.0060.00315.68
7.1.20.0090.00615.52
7.1.10.0070.00315.54
7.1.00.0020.04019.10
7.0.330.0050.00315.38
7.0.320.0000.00815.51
7.0.310.0030.00615.36
7.0.300.0000.00815.56
7.0.290.0000.01415.46
7.0.280.0080.00815.21
7.0.270.0030.00915.12
7.0.260.0070.00715.53
7.0.250.0140.00315.58
7.0.240.0080.00415.61
7.0.230.0130.00315.10
7.0.220.0090.00615.30
7.0.210.0070.00715.59
7.0.200.0060.00315.33
7.0.190.0080.00015.42
7.0.180.0060.00915.44
7.0.170.0060.00615.50
7.0.160.0030.00815.33
7.0.150.0000.01215.55
7.0.140.0040.03918.75
7.0.130.0080.00815.54
7.0.120.0100.00315.50
7.0.110.0040.01115.50
7.0.100.0090.00615.49
7.0.90.0000.01415.38
7.0.80.0100.00015.32
7.0.70.0000.00815.55
7.0.60.0020.03017.57
7.0.50.0050.02516.70
7.0.40.0030.03116.84
7.0.30.0190.02116.84
7.0.20.0130.03016.85
7.0.10.0050.03516.78
7.0.00.0100.04516.89
5.6.400.0060.00614.12
5.6.390.0000.01414.63
5.6.380.0040.00814.23
5.6.370.0070.00714.74
5.6.360.0040.00813.98
5.6.350.0060.00314.34
5.6.340.0070.00414.15
5.6.330.0070.01114.13
5.6.320.0030.01014.57
5.6.310.0090.00614.44
5.6.300.0060.00314.38
5.6.290.0060.00614.35
5.6.280.0000.04417.72
5.6.270.0040.01414.31
5.6.260.0060.00614.43
5.6.250.0110.00714.16
5.6.240.0060.00914.38
5.6.230.0100.00314.21
5.6.220.0070.00314.39
5.6.210.0030.04417.61
5.6.200.0070.02016.20
5.6.190.0060.02617.57
5.6.180.1850.02817.63
5.6.170.0200.04017.51
5.6.160.0070.04917.45
5.6.150.0060.03316.21
5.6.140.0030.03016.15
5.6.130.0070.04216.32
5.6.120.0060.02317.68
5.6.110.0140.04017.58
5.6.100.0050.04517.69
5.6.90.0040.02517.51
5.6.80.0040.02417.35
5.6.70.2220.02217.29
5.6.60.0070.00714.44
5.6.50.0030.01214.15
5.6.40.0030.00914.53
5.6.30.0060.00614.37
5.6.20.0130.00014.03
5.6.10.0130.00014.33
5.6.00.0040.01114.50
5.5.380.0060.00314.03
5.5.370.0000.01414.47
5.5.360.0080.00414.28
5.5.350.0070.02517.20
5.5.340.0030.03516.12
5.5.330.0080.04217.35
5.5.320.1650.01817.43
5.5.310.0100.02717.35
5.5.300.0050.03016.19
5.5.290.0050.04416.12
5.5.280.0060.04517.64
5.5.270.0050.04017.54
5.5.260.0030.04417.57
5.5.250.0090.04517.44
5.5.240.0170.04017.37
5.5.230.0070.00714.25
5.5.220.0030.01314.11
5.5.210.0060.00914.00
5.5.200.0060.00914.41
5.5.190.0060.00614.18
5.5.180.0070.01113.96
5.5.170.0070.00414.16
5.5.160.0030.00914.38
5.5.150.0070.00714.35
5.5.140.0080.00614.34
5.5.130.0070.01014.13
5.5.120.0090.00314.07
5.5.110.0060.00914.28
5.5.100.0030.00914.35
5.5.90.0030.01314.29
5.5.80.0110.00614.29
5.5.70.0000.01614.57
5.5.60.0030.01214.07
5.5.50.0110.00014.03
5.5.40.0090.00314.03
5.5.30.0080.00014.07
5.5.20.0000.01714.02
5.5.10.0060.00814.29
5.5.00.0030.00913.94
5.4.450.0320.02219.76
5.4.440.0260.02319.62
5.4.430.0080.02519.72
5.4.420.0320.02519.67
5.4.410.0170.02619.63
5.4.400.0100.02619.64
5.4.390.0300.02519.32
5.4.380.0120.03214.76
5.4.370.0140.02714.82
5.4.360.0100.02714.83
5.4.350.0110.03014.89
5.4.340.0110.02814.89
5.4.330.0050.00511.12
5.4.320.0090.02211.83
5.4.310.0070.02211.86
5.4.300.0050.02111.63
5.4.290.0050.02411.61
5.4.280.0070.02111.61
5.4.270.0040.02411.73
5.4.260.0040.02111.54
5.4.250.0040.02211.74
5.4.240.0070.02111.81
5.4.230.0020.02711.69
5.4.220.0070.02511.73
5.4.210.0050.02411.69
5.4.200.0070.02111.67
5.4.190.0070.01911.74
5.4.180.0060.02411.59
5.4.170.0050.02311.70
5.4.160.0100.01911.61
5.4.150.0080.02011.80
5.4.140.0060.02111.56
5.4.130.0060.02111.66
5.4.120.0010.02611.52
5.4.110.0040.02011.52
5.4.100.0070.02211.51
5.4.90.0090.01811.53
5.4.80.0080.01911.45
5.4.70.0080.02611.58
5.4.60.0050.02411.53
5.4.50.0080.02011.54
5.4.40.0040.02511.56
5.4.30.0080.01911.60
5.4.20.0070.02011.55
5.4.10.0060.02011.53
5.4.00.0070.02111.15
5.3.290.0020.02911.76
5.3.280.0060.03011.65
5.3.270.0030.03311.66
5.3.260.0070.02311.67
5.3.250.0070.02211.52
5.3.240.0020.02611.62
5.3.230.0070.02111.63
5.3.220.0060.02111.56
5.3.210.0020.02611.56
5.3.200.0070.02011.55
5.3.190.0040.02511.58
5.3.180.0060.02811.63
5.3.170.0080.02211.63
5.3.160.0080.02211.68
5.3.150.0040.02711.68
5.3.140.0090.02011.49
5.3.130.0080.02011.63
5.3.120.0090.02311.61
5.3.110.0060.02511.61
5.3.100.0090.02011.35
5.3.90.0080.02411.38
5.3.80.0040.02811.29
5.3.70.0080.02111.14
5.3.60.0050.02211.27
5.3.50.0060.02611.25
5.3.40.0070.02611.27
5.3.30.0050.02711.32
5.3.20.0070.02611.18
5.3.10.0060.02211.06
5.3.00.0080.02011.08
5.2.170.0060.0309.22
5.2.160.0040.0319.22
5.2.150.0100.0339.23
5.2.140.0030.0339.22
5.2.130.0050.0359.18
5.2.120.0080.0339.18
5.2.110.0090.0359.19
5.2.100.0080.0389.19
5.2.90.0070.0389.18
5.2.80.0070.0409.18
5.2.70.0120.0379.18
5.2.60.0060.0349.13
5.2.50.0060.0369.10
5.2.40.0060.0319.07
5.2.30.0040.0339.05
5.2.20.0070.0299.05
5.2.10.0060.0298.95
5.2.00.0020.0368.82
5.1.60.0020.0298.10
5.1.50.0050.0278.09
5.1.40.0040.0288.08
5.1.30.0040.0308.43
5.1.20.0050.0308.44
5.1.10.0040.0318.17
5.1.00.0070.0288.18
5.0.50.0060.0206.66
5.0.40.0040.0236.52
5.0.30.0040.0356.33
5.0.20.0050.0226.30
5.0.10.0040.0226.28
5.0.00.0060.0356.27
4.4.90.0050.0224.78
4.4.80.0010.0234.75
4.4.70.0030.0194.76
4.4.60.0020.0194.75
4.4.50.0010.0194.77
4.4.40.0060.0244.71
4.4.30.0010.0184.76
4.4.20.0030.0184.85
4.4.10.0050.0164.85
4.4.00.0060.0304.76
4.3.110.0070.0254.67
4.3.100.0050.0304.66
4.3.90.0040.0164.63
4.3.80.0050.0254.58
4.3.70.0020.0174.63
4.3.60.0040.0164.63
4.3.50.0050.0164.63
4.3.40.0050.0254.54
4.3.30.0020.0183.33
4.3.20.0010.0193.34
4.3.10.0050.0153.27
4.3.00.0030.02027.29

preferences:
42.17 ms | 401 KiB | 5 Q