3v4l.org

run code in 300+ PHP versions simultaneously
<?php function gdr_encode($val) { $bin = ''; while ($val > 0) { $bin .= chr($val & 0xFF); $val >>= 8; } return str_replace(array('/', '='), array('_', ''), base64_encode($bin)); } function gdr_decode($str) { $bin = base64_decode(str_replace('_', '/', $str)); $val = 0; for ($i=strlen($bin)-1; $i>=0; $i--) { $val |= ord($bin[$i]) << $i*8; } return $val; } if (phpversion() < '5.2.1') { die('old rng'); } // seed rng for consistent values mt_srand(42); for ($i=0; $i<32; $i++) { $val = 1<<$i; $val += mt_rand(0, $val/2); $enc = gdr_encode($val); $dec = gdr_decode($enc); if ($val === $dec) { echo "$enc $val\n"; } else { echo "$enc $valĀ ERROR: gdr_decode($enc) == $dec\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)
7.4.10.0030.01616.52
7.4.00.0160.00316.43
7.3.130.0060.01216.25
7.3.120.0110.00615.63
7.3.110.0050.01215.67
7.3.100.0080.00815.65
7.3.90.0070.00615.49
7.3.80.0060.01015.46
7.3.70.0070.00515.53
7.3.60.0030.00915.60
7.3.50.0030.00815.53
7.3.40.0050.00815.56
7.3.30.0080.00515.60
7.3.20.0030.01017.43
7.3.10.0070.00917.45
7.3.00.0060.01017.39
7.2.260.0030.01416.60
7.2.250.0100.01016.75
7.2.240.0070.00815.89
7.2.230.0060.01016.00
7.2.220.0020.01515.95
7.2.210.0060.01015.86
7.2.200.0040.00915.88
7.2.190.0060.00815.95
7.2.180.0060.01215.87
7.2.170.0060.01115.92
7.2.160.0020.01515.67
7.2.150.0030.01317.72
7.2.140.0070.01317.60
7.2.130.0090.01017.66
7.2.120.0050.00617.55
7.2.110.0060.00917.66
7.2.100.0090.00817.60
7.2.90.0030.01017.51
7.2.80.0070.00517.75
7.2.70.0110.00917.72
7.2.60.0090.01017.75
7.2.50.0040.01317.69
7.2.40.0040.01117.50
7.2.30.0080.00917.84
7.2.20.0080.00817.74
7.2.10.0080.01117.60
7.2.00.0110.00518.24
7.1.330.0020.01216.68
7.1.320.0080.00716.45
7.1.310.0080.00716.70
7.1.300.0040.01016.57
7.1.290.0070.00716.64
7.1.280.0080.00916.59
7.1.270.0000.01416.65
7.1.260.0040.01216.66
7.1.250.0030.01216.61
7.1.240.0070.00317.30
7.1.230.0070.00417.32
7.1.220.0030.01217.33
7.1.210.0090.00317.21
7.1.200.0060.00617.30
7.1.190.0120.00317.29
7.1.180.0060.00617.34
7.1.170.0060.00617.36
7.1.160.0020.01317.38
7.1.150.0030.00717.32
7.1.140.0070.01117.45
7.1.130.0150.00317.11
7.1.120.0100.00717.21
7.1.110.0040.01417.34
7.1.100.0080.00317.41
7.1.90.0070.01017.32
7.1.80.0130.00017.36
7.1.70.0100.00417.31
7.1.60.0070.01018.44
7.1.50.0070.01317.05
7.1.40.0090.00617.48
7.1.30.0030.01017.32
7.1.20.0080.00417.45
7.1.10.0110.00417.55
7.1.00.0020.04419.81
7.0.330.0070.01016.96
7.0.320.0030.01316.84
7.0.310.0110.00417.13
7.0.300.0120.00416.88
7.0.290.0120.00316.97
7.0.280.0080.00317.01
7.0.270.0030.00717.10
7.0.260.0040.01117.07
7.0.250.0040.00817.12
7.0.240.0140.00016.88
7.0.230.0030.01017.11
7.0.220.0060.00917.04
7.0.210.0090.00917.04
7.0.200.0000.01016.98
7.0.190.0070.01016.90
7.0.180.0000.01417.15
7.0.170.0110.00417.12
7.0.160.0070.00717.09
7.0.150.0100.00317.13
7.0.140.0050.04019.55
7.0.130.0040.00817.09
7.0.120.0030.01017.20
7.0.110.0070.03018.53
7.0.100.0070.04318.52
7.0.90.0050.03018.46
7.0.80.0110.03218.48
7.0.70.0070.04518.44
7.0.60.0100.04018.57
7.0.50.0070.04618.62
7.0.40.0110.04317.59
7.0.30.0070.04417.58
7.0.20.0080.03817.51
7.0.10.0070.04517.51
7.0.00.0060.04017.58
5.6.400.0100.00716.05
5.6.390.0060.00616.11
5.6.380.0070.00716.23
5.6.370.0030.00715.59
5.6.360.0030.01216.11
5.6.350.0070.00716.10
5.6.340.0030.01216.05
5.6.330.0000.01215.81
5.6.320.0070.00715.66
5.6.310.0060.00916.12
5.6.300.0080.00816.02
5.6.290.0040.01216.15
5.6.280.0030.04218.46
5.6.270.0000.01016.12
5.6.260.0070.04018.30
5.6.250.0120.03818.41
5.6.240.0120.04218.36
5.6.230.0030.04718.24
5.6.220.0030.04818.31
5.6.210.0080.04318.18
5.6.200.0100.04218.47
5.6.190.0060.04818.55
5.6.180.0030.04618.43
5.6.170.0070.04718.56
5.6.160.0070.04318.37
5.6.150.0120.03818.55
5.6.140.0050.04818.46
5.6.130.0090.04818.50
5.6.120.0130.03818.55
5.6.110.0100.03818.47
5.6.100.0070.04318.50
5.6.90.0070.04718.54
5.6.80.0100.03718.20
5.6.70.0100.04318.19
5.6.60.0020.04718.20
5.6.50.0030.05018.14
5.6.40.0050.04018.18
5.6.30.0050.02518.29
5.6.20.0070.04018.06
5.6.10.0080.04518.19
5.6.00.0100.04418.17
5.5.380.0020.04518.15
5.5.370.0030.04918.12
5.5.360.0100.04018.19
5.5.350.0050.03017.99
5.5.340.0100.04218.53
5.5.330.0050.03418.49
5.5.320.0030.03518.24
5.5.310.0030.04518.48
5.5.300.0020.05318.45
5.5.290.0070.03818.55
5.5.280.0070.04818.33
5.5.270.0100.03818.33
5.5.260.0070.04518.37
5.5.250.0060.04318.29
5.5.240.0050.02918.02
5.5.230.0080.04318.00
5.5.220.0050.04617.96
5.5.210.0060.02617.99
5.5.200.0080.04018.05
5.5.190.0130.02517.98
5.5.180.0030.04617.96
5.5.170.0090.00315.89
5.5.160.0070.04217.96
5.5.150.0080.04418.08
5.5.140.0110.03717.97
5.5.130.0040.03118.11
5.5.120.0080.04318.09
5.5.110.0090.03517.98
5.5.100.0160.03717.86
5.5.90.0050.04817.99
5.5.80.0080.04018.08
5.5.70.0050.04418.06
5.5.60.0100.03917.94
5.5.50.0070.04318.04
5.5.40.0070.02817.94
5.5.30.0080.03817.87
5.5.20.0030.04517.94
5.5.10.0110.03518.01
5.5.00.0090.03718.02
5.4.450.0070.04516.03
5.4.440.0070.04516.07
5.4.430.0070.04016.16
5.4.420.0100.03716.06
5.4.410.0080.03716.10
5.4.400.0070.03316.05
5.4.390.0070.04016.00
5.4.380.0050.03515.86
5.4.370.0070.03615.92
5.4.360.0050.02715.88
5.4.350.0070.03816.02
5.4.340.0090.03716.01
5.4.330.0030.00612.73
5.4.320.0080.02615.85
5.4.310.0080.03916.03
5.4.300.0070.02416.14
5.4.290.0030.04115.95
5.4.280.0100.03816.08
5.4.270.0070.03915.92
5.4.260.0070.03715.85
5.4.250.0080.04115.86
5.4.240.0080.03815.89
5.4.230.0050.04015.93
5.4.220.0040.03915.87
5.4.210.0070.04416.02
5.4.200.0140.01815.95
5.4.190.0090.04116.09
5.4.180.0070.04015.86
5.4.170.0070.04015.95
5.4.160.0090.03615.95
5.4.150.0060.04315.93
5.4.140.0060.03714.59
5.4.130.0110.03414.63
5.4.120.0090.03514.66
5.4.110.0020.04214.61
5.4.100.0020.03614.69
5.4.90.0060.03914.63
5.4.80.0070.04114.77
5.4.70.0070.02514.65
5.4.60.0070.03914.62
5.4.50.0070.04214.64
5.4.40.0060.02414.65
5.4.30.0110.03314.68
5.4.20.0130.03314.49
5.4.10.0070.04114.61
5.4.00.0070.03614.22
5.3.290.0080.04213.96
5.3.280.0060.03913.82
5.3.270.0100.02513.90
5.3.260.0050.02714.06
5.3.250.0050.03913.85
5.3.240.0050.04013.87
5.3.230.0030.02713.82
5.3.220.0050.04313.81
5.3.210.0030.04213.75
5.3.200.0050.04213.75
5.3.190.0080.04013.75
5.3.180.0070.03713.91
5.3.170.0050.04313.85
5.3.160.0060.04013.77
5.3.150.0070.04313.83
5.3.140.0060.04113.89
5.3.130.0050.04213.80
5.3.120.0050.04413.80
5.3.110.0020.04613.96
5.3.100.0020.04513.59
5.3.90.0070.04013.58
5.3.80.0050.03913.50
5.3.70.0070.04213.50
5.3.60.0030.04913.66
5.3.50.0030.03913.55
5.3.40.0090.03613.54
5.3.30.0040.02713.61
5.3.20.0070.03513.29
5.3.10.0070.03613.30
5.3.00.0000.04613.36
5.2.170.0030.06312.40
5.2.160.0000.06712.40
5.2.150.0030.06712.40
5.2.140.0030.06312.40
5.2.130.0030.03712.40
5.2.120.0030.06012.40
5.2.110.0130.05312.40
5.2.100.0000.06312.40
5.2.90.0100.06012.40
5.2.80.0030.06312.40
5.2.70.0030.06312.40
5.2.60.0000.06712.40
5.2.50.0100.05312.40
5.2.40.0070.06012.40
5.2.30.0000.06312.40
5.2.20.0000.05712.40
5.2.10.0030.05712.40
5.2.00.0130.04712.40
5.1.60.0030.05312.40
5.1.50.0100.03712.40
5.1.40.0000.04012.40
5.1.30.0070.04012.40
5.1.20.0000.05312.40
5.1.10.0030.04712.40
5.1.00.0030.05712.40
5.0.50.0070.04012.40
5.0.40.0070.03012.40
5.0.30.0000.06712.40
5.0.20.0000.03312.40
5.0.10.0000.04712.40
5.0.00.0000.06312.40
4.4.90.0070.03012.40
4.4.80.0030.03312.40
4.4.70.0000.03712.40
4.4.60.0000.04012.40
4.4.50.0030.03312.40
4.4.40.0030.03012.40
4.4.30.0000.02712.40
4.4.20.0000.02312.40
4.4.10.0070.02012.40
4.4.00.0030.05012.40
4.3.110.0000.04012.40
4.3.100.0030.03312.40
4.3.90.0000.03312.40
4.3.80.0000.05312.40
4.3.70.0100.02712.40
4.3.60.0070.02712.40
4.3.50.0070.03012.40
4.3.40.0000.05012.40
4.3.30.0000.03712.40
4.3.20.0000.02712.40
4.3.10.0070.03012.40
4.3.00.0000.03312.40

preferences:
34.25 ms | 401 KiB | 5 Q