3v4l.org

run code in 300+ PHP versions simultaneously
<?php // convert decimal to base 2 without using base_convert or printf $base = 2; $decnum = 23; $num = 23; $stack = array(); while( $num > 0) { $arr[] = $num % $base; // store remainder in array $num = floor($num/$base); // no integer division } var_dump($arr); $wrong = join('',$arr); var_dump($wrong); $cat = join('',array_reverse($arr)); var_dump($cat); printf("%b\n",$decnum); echo base_convert(23,10,2),"\n"; // now using the stack while( $decnum > 0) { array_push($stack,($decnum % $base)); // store remainder on stack $decnum = floor($decnum/$base); // no integer division } while($stack) { echo array_pop($stack); } echo "\n"; $decnum = 23; while( $decnum > 0) { $stack[] = $decnum % $base; // store remainder on stack $decnum = floor($decnum/$base); // no integer division } while($stack) { echo array_pop($stack); } echo "\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)
8.3.70.0120.00316.63
8.3.60.0040.01118.30
8.3.50.0090.00922.11
8.3.40.0070.01418.83
8.3.30.0070.00719.14
8.3.20.0130.00020.32
8.3.10.0040.00422.16
8.3.00.0080.00022.64
8.2.190.0090.00616.58
8.2.180.0140.00716.50
8.2.170.0170.00722.96
8.2.160.0000.01420.46
8.2.150.0080.00024.18
8.2.140.0160.00324.66
8.2.130.0150.00326.16
8.2.120.0050.00319.36
8.2.110.0110.00021.21
8.2.100.0080.00419.57
8.2.90.0030.00619.40
8.2.80.0030.00518.05
8.2.70.0080.00017.63
8.2.60.0060.00318.05
8.2.50.0040.00418.07
8.2.40.0000.00718.34
8.2.30.0000.00718.14
8.2.20.0000.00817.69
8.2.10.0080.00017.71
8.2.00.0040.00417.82
8.1.280.0070.00725.92
8.1.270.0080.00022.17
8.1.260.0030.00526.35
8.1.250.0050.00328.09
8.1.240.0060.00322.17
8.1.230.0100.00321.05
8.1.220.0080.00017.78
8.1.210.0050.00318.77
8.1.200.0110.00017.47
8.1.190.0040.00417.53
8.1.180.0030.00618.74
8.1.170.0040.00418.65
8.1.160.0000.00722.07
8.1.150.0050.00318.56
8.1.140.0050.00317.46
8.1.130.0070.00017.86
8.1.120.0070.00017.44
8.1.110.0000.00817.48
8.1.100.0030.00517.48
8.1.90.0040.00417.38
8.1.80.0030.00317.39
8.1.70.0000.00717.43
8.1.60.0070.00317.43
8.1.50.0070.00017.55
8.1.40.0050.00317.47
8.1.30.0030.00517.54
8.1.20.0050.00317.62
8.1.10.0030.00517.62
8.1.00.0000.00817.59
8.0.300.0070.00018.77
8.0.290.0000.00717.05
8.0.280.0070.00018.52
8.0.270.0030.00517.33
8.0.260.0050.00516.89
8.0.250.0030.00316.99
8.0.240.0030.00316.91
8.0.230.0030.00617.04
8.0.220.0040.00416.88
8.0.210.0000.00716.96
8.0.200.0000.00717.07
8.0.190.0030.00616.99
8.0.180.0000.00716.99
8.0.170.0050.00316.91
8.0.160.0000.00716.98
8.0.150.0070.00016.99
8.0.140.0030.00516.93
8.0.130.0000.00513.45
8.0.120.0030.00616.94
8.0.110.0040.00416.87
8.0.100.0040.00416.86
8.0.90.0040.00417.01
8.0.80.0090.00617.00
8.0.70.0070.00016.95
8.0.60.0000.00716.83
8.0.50.0050.00216.93
8.0.30.0140.00517.22
8.0.20.0050.01417.40
8.0.10.0020.00516.96
8.0.00.0120.00716.77
7.4.330.0000.00515.00
7.4.320.0030.00316.61
7.4.300.0030.00316.38
7.4.290.0040.00416.62
7.4.280.0030.00316.51
7.4.270.0070.00016.66
7.4.260.0000.01016.49
7.4.250.0080.00016.49
7.4.240.0040.00416.59
7.4.230.0040.00416.45
7.4.220.0040.01816.60
7.4.210.0110.00616.50
7.4.200.0070.00016.60
7.4.190.0000.00716.70
7.4.160.0030.01216.45
7.4.150.0100.00717.40
7.4.140.0140.00917.86
7.4.130.0080.01216.52
7.4.120.0120.00516.57
7.4.110.0070.01116.63
7.4.100.0040.01316.61
7.4.90.0080.01016.48
7.4.80.0090.00919.39
7.4.70.0100.00716.59
7.4.60.0130.00616.48
7.4.50.0000.00816.59
7.4.40.0060.00922.77
7.4.30.0100.00716.56
7.4.00.0100.00614.78
7.3.330.0030.00313.16
7.3.320.0020.00213.11
7.3.310.0000.00716.34
7.3.300.0030.00316.39
7.3.290.0170.00016.40
7.3.280.0080.00816.42
7.3.270.0060.01217.40
7.3.260.0110.00716.70
7.3.250.0080.00916.66
7.3.240.0110.01216.58
7.3.230.0130.00416.41
7.3.210.0070.01116.36
7.3.200.0040.01219.39
7.3.190.0090.01216.39
7.3.180.0090.01316.45
7.3.170.0100.00816.52
7.3.160.0070.01016.66
7.3.120.0070.00714.67
7.3.10.0030.01016.48
7.3.00.0030.00616.35
7.2.330.0170.00016.80
7.2.320.0100.00716.81
7.2.310.0100.01016.64
7.2.300.0090.00916.57
7.2.290.0100.00716.55
7.2.130.0110.00517.03
7.2.120.0050.01016.91
7.2.110.0070.00516.84
7.2.100.0050.01116.68
7.2.90.0050.01216.74
7.2.80.0050.00816.64
7.2.70.0090.00816.94
7.2.60.0050.00916.87
7.2.50.0080.00616.85
7.2.40.0070.00716.72
7.2.30.0090.00716.82
7.2.20.0100.00616.74
7.2.10.0050.00816.70
7.2.00.0040.01017.69
7.1.250.0030.01015.53
7.1.100.0060.00618.33
7.1.70.0070.01017.30
7.1.60.0140.01019.82
7.1.50.0130.01017.01
7.1.00.0070.07322.48
7.0.200.0000.00816.75
7.0.140.0100.06721.99
7.0.100.0330.07020.02
7.0.90.0300.03320.16
5.6.280.0030.07320.90
5.6.250.0100.06020.70
5.6.240.0130.05320.64
5.6.230.0070.06720.72
5.6.140.0130.04020.95
5.6.130.0100.04021.17
5.6.120.0100.05021.07
5.6.110.0070.04021.00
5.6.100.0070.08321.05
5.6.90.0170.08320.94
5.5.380.0100.03720.36
5.5.370.0100.07720.43
5.5.300.0200.06020.76
5.5.290.0100.08320.88
5.5.280.0070.06720.78
5.5.270.0070.04720.80
5.5.260.0100.07320.90
5.5.250.0070.07020.70
5.4.450.0030.08019.55
5.4.440.0070.09019.27
5.4.430.0030.07719.55
5.4.420.0070.04319.30
5.4.410.0000.06719.10

preferences:
48.19 ms | 401 KiB | 5 Q