3v4l.org

run code in 300+ PHP versions simultaneously
<?php function pack_encode($val) { $str = ''; while ($val > 0) { $str .= chr($val & 0xFF); $val = $val >> 8; } // "/" json-encodes poorly and "=" is padding return str_replace( array('/', '='), array('_', ''), base64_encode($str) ); } function pack_decode($bin) { $str = base64_decode(str_replace('_', '/', $bin)); $val = 0; for ($i=0; $i<strlen($str); $i++) { $val |= ord($str[$i]) << $i*8; } return $val; } for ($i=0; $i<32; $i++) { $val = 1<<$i; $enc = pack_encode($val); $dec = pack_decode($enc); echo "$val => $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)
8.3.60.0100.01018.56
8.3.50.0100.00522.86
8.3.40.0070.00718.69
8.3.30.0110.00419.07
8.3.20.0040.00420.29
8.3.10.0060.00321.73
8.3.00.0080.00017.63
8.2.180.0110.00716.50
8.2.170.0140.00022.96
8.2.160.0070.00720.34
8.2.150.0090.00024.18
8.2.140.0060.00324.66
8.2.130.0040.01126.16
8.2.120.0040.00421.01
8.2.110.0060.00322.22
8.2.100.0080.00417.72
8.2.90.0000.00819.22
8.2.80.0040.00417.97
8.2.70.0040.00817.75
8.2.60.0000.01117.74
8.2.50.0040.00418.07
8.2.40.0060.00318.22
8.2.30.0000.00818.07
8.2.20.0080.00017.76
8.2.10.0070.00018.14
8.2.00.0000.00917.71
8.1.280.0110.00325.92
8.1.270.0060.00323.85
8.1.260.0000.00726.35
8.1.250.0030.00328.09
8.1.240.0050.00523.96
8.1.230.0060.00619.14
8.1.220.0000.00817.74
8.1.210.0080.00018.77
8.1.200.0030.00717.23
8.1.190.0000.00817.23
8.1.180.0050.00318.10
8.1.170.0030.00518.31
8.1.160.0020.00521.87
8.1.150.0090.00018.89
8.1.140.0000.00717.36
8.1.130.0000.00717.76
8.1.120.0040.00417.44
8.1.110.0030.00517.42
8.1.100.0000.00817.41
8.1.90.0040.00417.47
8.1.80.0000.00717.43
8.1.70.0040.00417.41
8.1.60.0040.00417.55
8.1.50.0060.00317.50
8.1.40.0060.00317.36
8.1.30.0030.00617.66
8.1.20.0060.00317.61
8.1.10.0000.00817.57
8.1.00.0040.00417.59
8.0.300.0000.00818.77
8.0.290.0030.00616.63
8.0.280.0030.00318.50
8.0.270.0030.00617.26
8.0.260.0060.00018.37
8.0.250.0070.00016.95
8.0.240.0000.00816.98
8.0.230.0030.00316.94
8.0.220.0040.00416.88
8.0.210.0070.00016.79
8.0.200.0030.00316.92
8.0.190.0000.00816.94
8.0.180.0000.00716.98
8.0.170.0060.00316.82
8.0.160.0040.00416.84
8.0.150.0050.00316.86
8.0.140.0000.00816.88
8.0.130.0030.00313.37
8.0.120.0040.00416.90
8.0.110.0040.00416.84
8.0.100.0000.00816.86
8.0.90.0050.00217.02
8.0.80.0120.00916.86
8.0.70.0000.00816.89
8.0.60.0040.00416.84
8.0.50.0030.00516.87
8.0.30.0160.00717.18
8.0.20.0090.01017.40
8.0.10.0070.00016.80
8.0.00.0060.01316.62
7.4.330.0000.00515.09
7.4.320.0030.00316.55
7.4.300.0000.00616.41
7.4.290.0080.00016.42
7.4.280.0000.00816.61
7.4.270.0030.00316.38
7.4.260.0030.00316.46
7.4.250.0040.00416.46
7.4.240.0020.00516.52
7.4.230.0000.00816.70
7.4.220.0070.01116.72
7.4.210.0130.00316.63
7.4.200.0040.00416.64
7.4.160.0140.00716.59
7.4.150.0110.00617.40
7.4.140.0120.00717.86
7.4.130.0100.01016.60
7.4.120.0090.00816.52
7.4.110.0090.00916.65
7.4.100.0100.01416.49
7.4.90.0060.01916.71
7.4.80.0070.01519.39
7.4.70.0100.01016.56
7.4.60.0130.00316.58
7.4.50.0030.00616.58
7.4.40.0120.00616.30
7.4.30.0150.00016.48
7.4.00.0060.00914.83
7.3.330.0000.00513.40
7.3.320.0000.00613.14
7.3.310.0000.00716.39
7.3.300.0030.00316.26
7.3.290.0070.00716.41
7.3.280.0080.00816.32
7.3.270.0060.01217.40
7.3.260.0140.00916.61
7.3.250.0090.00916.39
7.3.240.0090.00916.34
7.3.230.0090.01316.63
7.3.210.0110.00816.33
7.3.200.0100.01019.39
7.3.190.0060.01816.38
7.3.180.0060.01016.51
7.3.170.0100.00616.46
7.3.160.0130.00916.32
7.2.330.0160.00716.83
7.2.320.0120.00416.77
7.2.310.0130.00416.76
7.2.300.0090.00616.70
7.2.290.0060.01016.85
7.2.00.0060.00619.25
7.1.100.0030.00618.30
7.1.70.0030.00717.09
7.1.60.0140.01019.40
7.1.50.0130.01016.69
7.1.00.0030.07322.35
7.0.200.0040.00416.76
7.0.140.0030.06721.93
7.0.60.0030.04019.92
7.0.50.0130.08317.82
7.0.40.0230.04320.11
7.0.30.0370.07020.08
7.0.20.0230.09020.24
7.0.10.0100.07720.08
7.0.00.0030.04020.04
5.6.280.0070.07320.93
5.6.210.0130.06020.61
5.6.200.0070.06018.12
5.6.190.0070.09320.65
5.6.180.0330.04320.77
5.6.170.0100.04720.51
5.6.160.0100.04320.61
5.6.150.0070.08318.18
5.6.140.0070.05318.12
5.6.130.0100.07718.17
5.6.120.0070.06021.14
5.6.110.0030.05721.13
5.6.100.0130.07721.02
5.6.90.0030.06020.98
5.6.80.0100.07020.41
5.5.350.0270.08020.36
5.5.340.0070.08017.98
5.5.330.0100.08720.42
5.5.320.3130.04720.43
5.5.310.0330.08020.28
5.5.300.0100.05017.96
5.5.290.0130.07718.04
5.5.280.0130.03320.80
5.5.270.0170.06720.76
5.5.260.0100.08020.73
5.5.250.0270.06720.61
5.5.240.0070.07320.16
5.4.450.0400.05719.61
5.4.440.0200.05319.59
5.4.430.0200.05019.51
5.4.420.0070.05719.39
5.4.410.0200.05719.46
5.4.400.0170.04719.23
5.4.390.0070.05719.16
5.4.380.0070.06318.73
5.4.370.0230.05318.70
5.4.360.0230.03718.63
5.4.350.0060.03612.02
5.4.340.0050.03812.02
5.4.320.0060.03512.51
5.4.310.0030.04112.51
5.4.300.0030.03912.51
5.4.290.0060.03912.51
5.4.280.0080.03412.40
5.4.270.0090.03412.40
5.4.260.0080.03612.40
5.4.250.0100.04612.40
5.4.240.0090.03912.40
5.4.230.0060.03812.39
5.4.220.0090.03512.39
5.4.210.0030.03812.39
5.4.200.0080.03712.39
5.4.190.0050.03912.39
5.4.180.0090.04012.39
5.4.170.0050.04412.40
5.4.160.0070.03512.39
5.4.150.0050.04012.39
5.4.140.0070.03712.08
5.4.130.0070.04112.06
5.4.120.0040.03712.02
5.4.110.0070.03512.02
5.4.100.0040.03712.02
5.4.90.0060.03712.02
5.4.80.0030.04012.02
5.4.70.0050.03812.02
5.4.60.0080.03912.01
5.4.50.0090.04012.02
5.4.40.0070.03612.00
5.4.30.0050.03812.00
5.4.20.0080.04312.00
5.4.10.0040.03712.00
5.4.00.0080.03411.48
5.3.290.0040.04212.80
5.3.280.0020.04112.71
5.3.270.0060.03912.72
5.3.260.0140.05512.72
5.3.250.0130.05112.71
5.3.240.0040.04112.72
5.3.230.0080.03812.71
5.3.220.0070.03812.68
5.3.210.0070.04112.68
5.3.200.0060.03812.68
5.3.190.0090.04612.68
5.3.180.0070.04412.67
5.3.170.0080.03712.67
5.3.160.0060.04012.68
5.3.150.0070.03912.67
5.3.140.0050.03812.66
5.3.130.0040.04212.66
5.3.120.0030.04212.66
5.3.110.0040.04112.66
5.3.100.0070.04012.13
5.3.90.0060.03712.11
5.3.80.0060.03712.10
5.3.70.0070.03512.10
5.3.60.0100.03312.08
5.3.50.0080.03412.03
5.3.40.0080.04312.03
5.3.30.0030.03811.99
5.3.20.0050.03611.77
5.3.10.0050.03611.73
5.3.00.0070.03511.72
5.2.170.0110.0329.22
5.2.160.0080.0269.22
5.2.150.0070.0289.22
5.2.140.0050.0309.21
5.2.130.0040.0299.18
5.2.120.0050.0299.18
5.2.110.0050.0309.19
5.2.100.0070.0319.18
5.2.90.0040.0329.18
5.2.80.0060.0429.18
5.2.70.0050.0329.18
5.2.60.0040.0319.14
5.2.50.0030.0319.11
5.2.40.0040.0299.08
5.2.30.0080.0279.06
5.2.20.0050.0299.04
5.2.10.0110.0228.95
5.2.00.0030.0438.82
5.1.60.0050.0318.09
5.1.50.0070.0288.09
5.1.40.0020.0288.07
5.1.30.0040.0268.43
5.1.20.0040.0388.45
5.1.10.0040.0278.17
5.1.00.0020.0318.17
5.0.50.0030.0266.64
5.0.40.0050.0186.50
5.0.30.0010.0336.32
5.0.20.0060.0176.29
5.0.10.0020.0246.27
5.0.00.0020.0326.26
4.4.90.0030.0164.78
4.4.80.0020.0174.75
4.4.70.0040.0154.75
4.4.60.0000.0184.75
4.4.50.0020.0164.77
4.4.40.0030.0264.71
4.4.30.0030.0164.76
4.4.20.0010.0184.85
4.4.10.0020.0164.85
4.4.00.0050.0234.76
4.3.110.0030.0164.67
4.3.100.0030.0154.67
4.3.90.0040.0144.64
4.3.80.0030.0244.59
4.3.70.0040.0144.63
4.3.60.0030.0144.63
4.3.50.0000.0184.63
4.3.40.0010.0264.54
4.3.30.0040.0153.31
4.3.20.0000.0183.29
4.3.10.0010.0173.25
4.3.00.0030.0277.13

preferences:
51.7 ms | 401 KiB | 5 Q