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 => $dec\n"; } for ($i=1; $i < (1<<32); $i = ($i<<1)) { $enc = pack_encode($val); $dec = pack_decode($val); echo "$enc $dec $val\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)
8.3.60.0150.00618.40
8.3.50.0080.00823.00
8.3.40.0150.00018.96
8.3.30.0140.00019.23
8.3.20.0080.00020.09
8.3.10.0000.00821.73
8.3.00.0050.00319.50
8.2.180.0100.00716.75
8.2.170.0120.00322.96
8.2.160.0030.01020.50
8.2.150.0060.00324.18
8.2.140.0020.00524.66
8.2.130.0030.00526.16
8.2.120.0080.00021.02
8.2.110.0060.00321.12
8.2.100.0000.01218.28
8.2.90.0100.00019.36
8.2.80.0030.00617.97
8.2.70.0080.00017.75
8.2.60.0080.00018.05
8.2.50.0050.00318.10
8.2.40.0040.00418.22
8.2.30.0040.00418.21
8.2.20.0020.00517.83
8.2.10.0030.00518.07
8.2.00.0040.00417.74
8.1.280.0140.00025.92
8.1.270.0050.00323.97
8.1.260.0040.00426.35
8.1.250.0070.00028.09
8.1.240.0060.00322.75
8.1.230.0040.00720.39
8.1.220.0060.00317.74
8.1.210.0040.00418.77
8.1.200.0060.00317.35
8.1.190.0000.00817.35
8.1.180.0090.00018.10
8.1.170.0000.00820.38
8.1.160.0000.00722.03
8.1.150.0000.00718.76
8.1.140.0040.00417.30
8.1.130.0000.00717.91
8.1.120.0070.00017.49
8.1.110.0000.00817.33
8.1.100.0000.00717.36
8.1.90.0000.00717.43
8.1.80.0030.00417.31
8.1.70.0000.00917.39
8.1.60.0040.00417.59
8.1.50.0060.00317.59
8.1.40.0050.00317.55
8.1.30.0050.00317.56
8.1.20.0060.00317.59
8.1.10.0040.00417.68
8.1.00.0040.00417.59
8.0.300.0040.00418.77
8.0.290.0000.00916.75
8.0.280.0000.00718.40
8.0.270.0040.00417.34
8.0.260.0050.00317.27
8.0.250.0070.00017.04
8.0.240.0040.00417.10
8.0.230.0020.00517.05
8.0.220.0070.00016.97
8.0.210.0080.00016.86
8.0.200.0000.00616.92
8.0.190.0000.00717.00
8.0.180.0070.00016.98
8.0.170.0040.00416.98
8.0.160.0080.00016.91
8.0.150.0000.00716.86
8.0.140.0000.00816.92
8.0.130.0000.00513.37
8.0.120.0000.00716.96
8.0.110.0080.00016.89
8.0.100.0050.00317.00
8.0.90.0040.00416.84
8.0.80.0040.01816.89
8.0.70.0000.00716.88
8.0.60.0050.00216.95
8.0.50.0040.00416.97
8.0.30.0150.00617.16
8.0.20.0090.01017.40
8.0.10.0040.00417.04
8.0.00.0140.00516.87
7.4.330.0030.00315.04
7.4.320.0030.00316.51
7.4.300.0000.00616.65
7.4.290.0000.00716.57
7.4.280.0080.00016.44
7.4.270.0030.00416.60
7.4.260.0030.00516.65
7.4.250.0040.00416.57
7.4.240.0020.00516.63
7.4.230.0000.00716.62
7.4.220.0150.00916.42
7.4.210.0170.00416.52
7.4.200.0040.00416.41
7.4.160.0040.01716.46
7.4.150.0090.00917.40
7.4.140.0160.00817.86
7.4.130.0110.01016.65
7.4.120.0080.00916.61
7.4.110.0140.00716.44
7.4.100.0080.01316.55
7.4.90.0140.00416.70
7.4.80.0040.01319.39
7.4.70.0150.00316.39
7.4.60.0130.00316.66
7.4.50.0030.00616.56
7.4.40.0130.01016.52
7.4.30.0100.00616.50
7.4.00.0090.00315.23
7.3.330.0050.00013.27
7.3.320.0030.00313.46
7.3.310.0040.00416.54
7.3.300.0000.00716.27
7.3.290.0070.00716.49
7.3.280.0090.00716.46
7.3.270.0140.00317.40
7.3.260.0150.00316.53
7.3.250.0080.01016.51
7.3.240.0070.01116.39
7.3.230.0060.01116.60
7.3.210.0060.01216.34
7.3.200.0100.01319.39
7.3.190.0130.00716.63
7.3.180.0060.01016.51
7.3.170.0030.01316.54
7.3.160.0110.00716.38
7.3.10.0100.00616.70
7.3.00.0040.01116.40
7.2.330.0150.00316.87
7.2.320.0070.01616.65
7.2.310.0120.01216.71
7.2.300.0070.01016.80
7.2.290.0050.01116.55
7.2.130.0030.00816.82
7.2.120.0110.00716.88
7.2.110.0040.00716.62
7.2.100.0100.00716.66
7.2.90.0070.01116.80
7.2.80.0090.02316.86
7.2.70.0120.00817.21
7.2.60.0060.00716.70
7.2.50.0280.00716.52
7.2.40.0030.01417.09
7.2.30.0060.00916.92
7.2.20.0090.00616.88
7.2.10.0090.00616.52
7.2.00.0090.00718.21
7.1.250.0130.00315.64
7.1.200.0070.00315.91
7.1.100.0040.00818.06
7.1.70.0060.01017.28
7.1.60.0100.01419.40
7.1.50.0100.01016.98
7.1.00.0030.07722.57
7.0.200.0000.00916.47
7.0.140.0100.06721.98
7.0.110.0130.03019.95
7.0.100.0100.04320.02
7.0.90.0100.06320.09
7.0.80.0070.04020.01
7.0.70.0070.04719.93
7.0.60.0200.05319.95
7.0.50.0170.04019.91
7.0.40.0000.04719.64
7.0.30.0070.03719.68
7.0.20.0070.04319.68
7.0.10.0070.03719.64
7.0.00.0070.04319.86
5.6.280.0000.07721.14
5.6.260.0030.04020.61
5.6.250.0100.02720.89
5.6.240.0030.07020.58
5.6.230.0030.06720.66
5.6.220.0100.07020.63
5.6.210.0070.04720.82
5.6.200.0130.03320.56
5.6.190.0030.04020.64
5.6.180.0030.04020.83
5.6.170.0000.04720.86
5.6.160.0100.03320.66
5.6.150.0100.03720.60
5.6.140.0030.04020.55
5.6.130.0030.04020.64
5.6.120.0030.04020.56
5.6.110.0030.05020.70
5.6.100.0070.04020.68
5.6.90.0030.04020.54
5.6.80.0100.03719.94
5.6.70.0030.04020.06
5.6.60.0030.07019.94
5.6.50.0070.08320.02
5.6.40.0030.06719.92
5.6.30.0000.08320.02
5.6.20.0000.03719.91
5.6.10.0070.05719.98
5.6.00.0070.06320.00
5.5.380.0130.05317.60
5.5.370.0000.05717.57
5.5.360.0070.05717.71
5.5.350.0100.03717.50
5.5.340.0070.04718.07
5.5.330.0030.04018.25
5.5.320.0030.05017.96
5.5.310.0030.04018.25
5.5.300.0070.03718.22
5.5.290.0030.05717.93
5.5.280.0000.05017.91
5.5.270.0030.04317.92
5.5.260.0170.03018.05
5.5.250.0030.04017.86
5.5.240.0070.03717.32
5.5.230.0070.03717.43
5.5.220.0000.04017.63
5.5.210.0030.07717.43
5.5.200.0130.07017.29
5.5.190.0100.07317.28
5.5.180.0070.08017.27
5.5.160.0030.07717.48
5.5.150.0030.05717.58
5.5.140.0030.04317.58
5.5.130.0030.07017.48
5.5.120.0000.08317.60
5.5.110.0070.03717.43
5.5.100.0230.06317.16
5.5.90.0030.04717.37
5.5.80.0100.06017.18
5.5.70.0070.03717.47
5.5.60.0000.08317.17
5.5.50.0000.08017.20
5.5.40.0130.03017.29
5.5.30.0000.08717.36
5.5.20.0130.06317.15
5.5.10.0030.07017.46
5.5.00.0130.07317.16
5.4.450.0100.03719.35
5.4.440.0070.04319.51
5.4.430.0100.03319.31
5.4.420.0030.04019.63
5.4.410.0030.03719.18
5.4.400.0070.03719.01
5.4.390.0000.07019.34
5.4.380.0070.03719.04
5.4.370.0100.07719.03
5.4.360.0100.07719.31
5.4.350.0070.07319.17
5.4.340.0100.07019.03
5.4.320.0000.08019.18
5.4.310.0070.08019.00
5.4.300.0130.03719.18
5.4.290.0000.08719.24
5.4.280.0030.04018.95
5.4.270.0070.06719.00
5.4.260.0070.07719.34
5.4.250.0100.05719.22
5.4.240.0100.06018.98
5.4.230.0000.08319.03
5.4.220.0070.07718.98
5.4.210.0070.07719.22
5.4.200.0100.03719.13
5.4.190.0070.05319.26
5.4.180.0030.08019.30
5.4.170.0070.05318.93
5.4.160.0100.05718.98
5.4.150.0100.07019.18
5.4.140.0070.06316.37
5.4.130.0030.03716.38
5.4.120.0030.05716.34
5.4.110.0030.06316.46
5.4.100.0100.06716.61
5.4.90.0200.06316.62
5.4.80.0100.05016.58
5.4.70.0070.03716.50
5.4.60.0100.08316.24
5.4.50.0070.07316.63
5.4.40.0070.05016.29
5.4.30.0070.06016.38
5.4.20.0130.05716.51
5.4.10.0170.04716.40
5.4.00.0030.07316.00
5.3.290.0030.07714.64
5.3.280.0070.04714.58
5.3.270.0100.07014.75
5.3.260.0100.07014.48
5.3.250.0070.06714.75
5.3.240.0100.04014.57
5.3.230.0030.05314.75
5.3.220.0100.04714.55
5.3.210.0100.06314.57
5.3.200.0100.07314.71
5.3.190.0000.07714.61
5.3.180.0070.07314.66
5.3.170.0030.04014.70
5.3.160.0070.07014.53
5.3.150.0070.04014.58
5.3.140.0070.05014.69
5.3.130.0070.07314.64
5.3.120.0070.04014.55
5.3.110.0100.06014.63
5.3.100.0070.04314.18
5.3.90.0030.06314.05
5.3.80.0030.07714.04
5.3.70.0000.05014.09
5.3.60.0170.02714.04
5.3.50.0070.06313.97
5.3.40.0030.06014.09
5.3.30.0070.07013.91
5.3.20.0100.07013.68
5.3.10.0000.07713.64
5.3.00.0030.04713.87
5.2.170.0070.06011.92
5.2.160.0000.06011.92
5.2.150.0100.05311.92
5.2.140.0100.04711.92
5.2.130.0070.03311.92
5.2.120.0070.05311.92
5.2.110.0000.06011.92
5.2.100.0170.02311.92
5.2.90.0030.06311.92
5.2.80.0100.05711.92
5.2.70.0000.05711.92
5.2.60.0030.04711.92
5.2.50.0000.04011.92
5.2.40.0000.05711.92
5.2.30.0000.05711.92
5.2.20.0070.03311.92
5.2.10.0100.03311.92
5.2.00.0030.03311.92
5.1.60.0030.05311.92
5.1.50.0070.05011.92
5.1.40.0070.04311.92
5.1.30.0030.05011.92
5.1.20.0070.04711.92
5.1.10.0030.04011.92
5.1.00.0030.05311.92
5.0.50.0030.04711.92
5.0.40.0030.04311.92
5.0.30.0030.05711.92
5.0.20.0030.01711.92
5.0.10.0000.02011.92
5.0.00.0000.02711.92
4.4.90.0000.03311.92
4.4.80.0000.01711.92
4.4.70.0000.03711.92
4.4.60.0030.02011.92
4.4.50.0000.04311.92
4.4.40.0030.03011.92
4.4.30.0030.03311.92
4.4.20.0000.02011.92
4.4.10.0000.03711.92
4.4.00.0070.03311.92
4.3.110.0070.02711.92
4.3.100.0030.01311.92
4.3.90.0070.02011.92
4.3.80.0000.04711.92
4.3.70.0030.02711.92
4.3.60.0000.01711.92
4.3.50.0030.03311.92
4.3.40.0000.05311.92
4.3.30.0030.02711.92
4.3.20.0000.02011.92
4.3.10.0030.01311.92
4.3.00.0000.03311.92

preferences:
48.2 ms | 401 KiB | 5 Q