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 $val; } function test_enc($val) { $enc = gdr_encode($val); $dec = gdr_decode($enc); if ($val === $dec) { echo "$enc $val\n"; } else { echo "$enc $val ERROR: gdr_decode($enc) == $dec\n"; } } foreach (array(0, 1, 99, 100, 255, 256, 999, 1000, 9999, 10000, 65535, 65536, 99999, 100000, 999999, 1000000, 4294967295, 4294967296) as $val) { test_enc($val); }echo "\n"; /* // seed rng for consistent values if (phpversion() < '5.2.1') { die('old rng'); } mt_srand(42); for ($i=0; $i<63; $i++) { $val = 1<<$i; $val += mt_rand(0, $val/2); test_enc($val); } */

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)
8.3.60.0140.00418.30
8.3.50.0070.01222.82
8.3.40.0120.00318.89
8.3.30.0110.00419.09
8.3.20.0030.00520.21
8.3.10.0040.00421.77
8.3.00.0020.00517.63
8.2.180.0040.01216.46
8.2.170.0040.01122.96
8.2.160.0100.00320.35
8.2.150.0080.00024.18
8.2.140.0080.00024.66
8.2.130.0000.00826.16
8.2.120.0030.00621.04
8.2.110.0060.00322.18
8.2.100.0080.00419.76
8.2.90.0000.00819.30
8.2.80.0050.00317.97
8.2.70.0080.00017.38
8.2.60.0000.00818.04
8.2.50.0030.00518.07
8.2.40.0080.00018.28
8.2.30.0040.00418.15
8.2.20.0030.00517.76
8.2.10.0040.00417.97
8.2.00.0030.00617.64
8.1.280.0070.00725.92
8.1.270.0000.00923.96
8.1.260.0070.00026.35
8.1.250.0000.00728.09
8.1.240.0130.00323.82
8.1.230.0000.01119.18
8.1.220.0060.00317.79
8.1.210.0040.00418.77
8.1.200.0060.00317.38
8.1.190.0000.00917.22
8.1.180.0000.00818.10
8.1.170.0040.00418.66
8.1.160.0000.00722.10
8.1.150.0080.00018.82
8.1.140.0070.00017.40
8.1.130.0000.00717.28
8.1.120.0040.00417.32
8.1.110.0080.00017.47
8.1.100.0000.00817.37
8.1.90.0000.00717.34
8.1.80.0050.00217.36
8.1.70.0030.00617.42
8.1.60.0040.00417.45
8.1.50.0050.00517.37
8.1.40.0050.00217.53
8.1.30.0040.00417.63
8.1.20.0000.00817.52
8.1.10.0080.00017.43
8.1.00.0090.00017.45
8.0.300.0040.00418.77
8.0.290.0030.00616.63
8.0.280.0000.00718.45
8.0.270.0040.00416.95
8.0.260.0080.00016.86
8.0.250.0040.00417.04
8.0.240.0000.00717.08
8.0.230.0000.00817.05
8.0.220.0030.00516.99
8.0.210.0030.00316.95
8.0.200.0030.00317.05
8.0.190.0040.00416.90
8.0.180.0040.00417.01
8.0.170.0000.00817.03
8.0.160.0000.00816.98
8.0.150.0000.00716.91
8.0.140.0000.00716.83
8.0.130.0060.00013.38
8.0.120.0060.00316.84
8.0.110.0040.00416.91
8.0.100.0000.00716.87
8.0.90.0040.00416.86
8.0.80.0060.01217.02
8.0.70.0040.00416.87
8.0.60.0080.00016.81
8.0.50.0050.00316.95
8.0.30.0060.01417.10
8.0.20.0100.00817.40
8.0.10.0080.00016.88
8.0.00.0090.01216.93
7.4.330.0000.00515.02
7.4.320.0000.00716.44
7.4.300.0070.00016.61
7.4.290.0000.00716.55
7.4.280.0000.00716.64
7.4.270.0000.00816.59
7.4.260.0060.00013.33
7.4.250.0040.00416.61
7.4.240.0030.00316.55
7.4.230.0070.00016.42
7.4.220.0090.00916.70
7.4.210.0040.01116.64
7.4.200.0030.00316.36
7.4.160.0110.01316.41
7.4.150.0090.00917.40
7.4.140.0140.00717.86
7.4.130.0100.00816.66
7.4.120.0120.00616.49
7.4.110.0110.00716.67
7.4.100.0140.00516.65
7.4.90.0180.00016.50
7.4.80.0030.01919.39
7.4.70.0060.01216.59
7.4.60.0120.00616.53
7.4.50.0040.00416.47
7.4.40.0120.00616.69
7.4.30.0140.00316.71
7.4.10.0000.01714.92
7.4.00.0070.00915.15
7.3.330.0050.00013.54
7.3.320.0060.00013.40
7.3.310.0020.00516.23
7.3.300.0070.00016.48
7.3.290.0110.00316.51
7.3.280.0090.00916.48
7.3.270.0060.01317.40
7.3.260.0070.01416.65
7.3.250.0130.00716.53
7.3.240.0110.00616.37
7.3.230.0090.01216.70
7.3.210.0100.00716.53
7.3.200.0150.00319.39
7.3.190.0120.00616.45
7.3.180.0070.01016.52
7.3.170.0030.01316.40
7.3.160.0150.00616.53
7.3.130.0070.01014.94
7.3.120.0070.01114.89
7.3.110.0000.01914.82
7.3.100.0030.01514.79
7.3.90.0070.00714.73
7.3.80.0040.00714.78
7.3.70.0080.00414.50
7.3.60.0060.00314.63
7.3.50.0070.00715.04
7.3.40.0030.01314.59
7.3.30.0030.01015.02
7.3.20.0040.01116.78
7.3.10.0090.00916.76
7.3.00.0080.00416.80
7.2.330.0150.00316.39
7.2.320.0070.01016.73
7.2.310.0180.00616.70
7.2.300.0080.00816.50
7.2.290.0090.00616.86
7.2.260.0040.01515.16
7.2.250.0070.00715.09
7.2.240.0060.00915.08
7.2.230.0090.01215.30
7.2.220.0040.01115.02
7.2.210.0040.00815.07
7.2.200.0000.01615.04
7.2.190.0000.01414.85
7.2.180.0070.01115.17
7.2.170.0030.01314.89
7.2.160.0100.00715.26
7.2.150.0090.00916.95
7.2.140.0120.00617.00
7.2.130.0100.00716.79
7.2.120.0040.01217.11
7.2.110.0060.01116.85
7.2.100.0070.00316.92
7.2.90.0040.00817.02
7.2.80.0060.00916.89
7.2.70.0060.00616.85
7.2.60.0090.00916.84
7.2.50.0030.01416.78
7.2.40.0070.00416.79
7.2.30.0070.00716.96
7.2.20.0070.00316.85
7.2.10.0130.00317.09
7.2.00.0020.01418.31
7.1.330.0030.01015.70
7.1.320.0000.01415.63
7.1.310.0070.00715.78
7.1.300.0060.00616.00
7.1.290.0050.00515.83
7.1.280.0060.00615.85
7.1.270.0030.01415.97
7.1.260.0080.00415.84
7.1.250.0060.00915.73
7.1.240.0030.00615.77
7.1.230.0030.00615.66
7.1.220.0060.00615.88
7.1.210.0040.00815.74
7.1.200.0020.00815.84
7.1.190.0060.00915.81
7.1.180.0150.00015.86
7.1.170.0000.01615.98
7.1.160.0040.00815.80
7.1.150.0070.00315.82
7.1.140.0030.00615.82
7.1.130.0000.01215.75
7.1.120.0040.01215.83
7.1.110.0060.00915.97
7.1.100.0030.01017.11
7.1.90.0060.00815.70
7.1.80.0080.00415.60
7.1.70.0050.01016.67
7.1.60.0080.01317.61
7.1.50.0040.01516.39
7.1.40.0040.01215.96
7.1.30.0000.01415.62
7.1.20.0070.00315.83
7.1.10.0000.01115.53
7.1.00.0080.03719.05
7.0.330.0030.01015.25
7.0.320.0060.00915.44
7.0.310.0070.00715.07
7.0.300.0110.00415.43
7.0.290.0000.01315.45
7.0.280.0000.01615.39
7.0.270.0040.00715.30
7.0.260.0000.01115.46
7.0.250.0030.00615.23
7.0.240.0090.00315.43
7.0.230.0110.00415.55
7.0.220.0030.00915.13
7.0.210.0070.00415.53
7.0.200.0030.00816.11
7.0.190.0100.00315.45
7.0.180.0030.00915.37
7.0.170.0040.00915.27
7.0.160.0060.00615.57
7.0.150.0060.00615.59
7.0.140.0050.03718.77
7.0.130.0040.01115.36
7.0.120.0030.01015.56
7.0.110.0120.00315.53
7.0.100.0060.00615.41
7.0.90.0030.01015.34
7.0.80.0060.00915.43
7.0.70.0120.00015.42
7.0.60.0080.04317.86
7.0.50.0050.04816.72
7.0.40.0110.04316.86
7.0.30.0180.02016.73
7.0.20.0130.02716.86
7.0.10.0150.04016.83
7.0.00.0030.03716.75
5.6.400.0070.00714.42
5.6.390.0080.00814.59
5.6.380.0070.00714.30
5.6.370.0000.01114.69
5.6.360.0090.00014.27
5.6.350.0070.00714.31
5.6.340.0030.01014.60
5.6.330.0030.00614.74
5.6.320.0040.01114.73
5.6.310.0110.00414.65
5.6.300.0070.01014.54
5.6.290.0030.01014.27
5.6.280.0060.04017.84
5.6.270.0040.01114.33
5.6.260.0030.01014.16
5.6.250.0060.00614.42
5.6.240.0090.00614.38
5.6.230.0040.01114.29
5.6.220.0060.00614.43
5.6.210.0020.02717.60
5.6.200.0050.03816.22
5.6.190.0080.02317.50
5.6.180.0120.02317.45
5.6.170.0100.02417.45
5.6.160.0050.03517.51
5.6.150.0100.03816.24
5.6.140.0100.04316.40
5.6.130.0060.03816.30
5.6.120.0080.04417.59
5.6.110.0100.02517.60
5.6.100.0040.02617.74
5.6.90.0080.02217.81
5.6.80.0100.03817.43
5.6.70.0040.01114.46
5.6.60.0030.01014.54
5.6.50.0100.00614.16
5.6.40.0070.01014.40
5.6.30.0060.00614.02
5.6.20.0030.00614.35
5.6.10.0080.00814.27
5.6.00.0090.00914.25
5.5.380.0070.00714.30
5.5.370.0060.00914.28
5.5.360.0060.00314.61
5.5.350.1330.02417.52
5.5.340.0060.04216.28
5.5.330.0050.03817.48
5.5.320.0250.03117.44
5.5.310.0150.04617.24
5.5.300.0100.04016.30
5.5.290.0020.03516.02
5.5.280.0070.02317.74
5.5.270.0030.02617.50
5.5.260.0030.03717.39
5.5.250.0070.02517.48
5.5.240.0170.04117.21
5.5.230.0060.00614.32
5.5.220.0000.01114.06
5.5.210.0090.00614.51
5.5.200.0000.01514.15
5.5.190.0080.00414.39
5.5.180.0000.01614.45
5.5.170.0070.01014.52
5.5.160.0060.01214.41
5.5.150.0070.01014.52
5.5.140.0120.00314.38
5.5.130.0030.01014.59
5.5.120.0030.01413.92
5.5.110.0100.00714.44
5.5.100.0000.01214.09
5.5.90.0040.01113.95
5.5.80.0100.00314.51
5.5.70.0000.01014.32
5.5.60.0030.01314.32
5.5.50.0000.01014.10
5.5.40.0090.00314.25
5.5.30.0150.00014.31
5.5.20.0000.00914.09
5.5.10.0090.00614.31
5.5.00.0070.00714.48
5.4.450.0200.02315.30
5.4.440.0260.02315.38
5.4.430.0590.02615.39
5.4.420.0350.02315.27
5.4.410.0150.02415.23
5.4.400.0170.02715.20
5.4.390.0070.02515.17
5.4.380.0110.02814.87
5.4.370.0130.03614.94
5.4.360.0170.02015.03
5.4.350.0120.02715.05
5.4.340.0150.02215.00
5.4.330.0000.01311.44
5.4.320.0060.02411.89
5.4.310.0020.02911.89
5.4.300.0030.02411.89
5.4.290.0040.02411.88
5.4.280.0080.01811.85
5.4.270.0070.01911.84
5.4.260.0050.02111.83
5.4.250.0100.02611.84
5.4.240.0120.02511.83
5.4.230.0070.02211.88
5.4.220.0050.02211.83
5.4.210.0050.02311.83
5.4.200.0060.02411.83
5.4.190.0060.02511.83
5.4.180.0060.01911.83
5.4.170.0050.02811.83
5.4.160.0080.02111.83
5.4.150.0020.02611.83
5.4.140.0050.02111.67
5.4.130.0060.02111.66
5.4.120.0060.02011.64
5.4.110.0060.02211.64
5.4.100.0060.02111.64
5.4.90.0060.02211.64
5.4.80.0040.02211.64
5.4.70.0050.01911.64
5.4.60.0060.02111.64
5.4.50.0060.02311.64
5.4.40.0080.02411.63
5.4.30.0070.02211.63
5.4.20.0080.01911.63
5.4.10.0040.02411.63
5.4.00.0040.02311.38
5.3.290.0030.02612.03
5.3.280.0040.02311.99
5.3.270.0040.02711.99
5.3.260.0040.02611.99
5.3.250.0060.01911.99
5.3.240.0050.02211.99
5.3.230.0050.02111.99
5.3.220.0040.02311.97
5.3.210.0050.02411.97
5.3.200.0040.02411.97
5.3.190.0040.02111.97
5.3.180.0040.02411.97
5.3.170.0020.02411.97
5.3.160.0050.03011.97
5.3.150.0050.02111.97
5.3.140.0050.02411.96
5.3.130.0020.02311.96
5.3.120.0080.02111.96
5.3.110.0040.02411.96
5.3.100.0050.02111.70
5.3.90.0090.02311.69
5.3.80.0060.02111.68
5.3.70.0070.01811.68
5.3.60.0060.02211.68
5.3.50.0040.02111.65
5.3.40.0030.02211.65
5.3.30.0050.01911.63
5.3.20.0040.03011.52
5.3.10.0040.03111.50
5.3.00.0040.02911.49
5.2.170.0040.0449.23
5.2.160.0060.0399.23
5.2.150.0040.0339.23
5.2.140.0060.0299.23
5.2.130.0070.0269.19
5.2.120.0040.0289.19
5.2.110.0030.0309.20
5.2.100.0060.0289.19
5.2.90.0040.0309.19
5.2.80.0030.0359.18
5.2.70.0030.0319.18
5.2.60.0030.0319.14
5.2.50.0040.0329.10
5.2.40.0060.0289.09
5.2.30.0040.0319.06
5.2.20.0030.0319.05
5.2.10.0010.0318.95
5.2.00.0050.0368.82
5.1.60.0040.0258.10
5.1.50.0030.0268.10
5.1.40.0030.0278.09
5.1.30.0060.0248.43
5.1.20.0060.0258.45
5.1.10.0040.0268.18
5.1.00.0050.0258.18
5.0.50.0010.0236.66
5.0.40.0040.0196.52
5.0.30.0030.0326.33
5.0.20.0040.0196.30
5.0.10.0050.0196.27
5.0.00.0020.0336.27
4.4.90.0030.0194.78
4.4.80.0060.0144.75
4.4.70.0000.0194.75
4.4.60.0020.0164.75
4.4.50.0030.0164.77
4.4.40.0030.0244.71
4.4.30.0010.0174.76
4.4.20.0020.0164.84
4.4.10.0010.0174.85
4.4.00.0000.0274.76
4.3.110.0020.0164.67
4.3.100.0040.0134.66
4.3.90.0020.0154.64
4.3.80.0000.0284.59
4.3.70.0020.0154.62
4.3.60.0060.0154.63
4.3.50.0060.0134.63
4.3.40.0040.0244.54
4.3.30.0040.0143.33
4.3.20.0010.0183.30
4.3.10.0020.0163.26
4.3.00.0070.01015.90

preferences:
49.63 ms | 401 KiB | 5 Q