3v4l.org

run code in 300+ PHP versions simultaneously
<?php function bytesToBits(string $bytestring) : string { $parts = ''; foreach (str_split($bytestring, 4) as $chunk) { $parts .= str_pad(base_convert(unpack('H*', $chunk)[1], 16, 2), 32, '0', STR_PAD_LEFT); } return $parts; } function bitsToBytes(string $bitstring) : string { $remain = $bitstring % 32; if ($remain !== 0) { $bitstring = str_pad($bitstring, $remain, '0', STR_PAD_LEFT); } $parts = ''; foreach (str_split($bitstring, 32) as $chunk) { $parts .= pack('H*', str_pad(base_convert($chunk, 2, 16), 8, '0', STR_PAD_LEFT)); } return $parts; } for ($i = 0; $i < 100; $i++) { $bytestring_in = hash('sha512', uniqid('', true)); $bits = bytesToBits($bytestring_in); $bytestring_out = bitsToBytes($bits); if ($bytestring_in !== $bytestring_out) { die('Error in functions.'); } } echo 'All ok!' . PHP_EOL;

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)
7.4.10.0100.01615.06
7.4.00.0020.02315.12
7.3.130.0030.02314.94
7.3.120.0120.01014.80
7.3.110.0050.02014.92
7.3.100.0050.01414.88
7.3.90.0050.01414.81
7.3.80.0050.01714.79
7.3.70.0030.01414.87
7.3.60.0050.01515.00
7.3.50.0060.01314.79
7.3.40.0070.01315.02
7.3.30.0070.00814.79
7.3.20.0050.01516.70
7.3.10.0070.01516.48
7.3.00.0070.01416.65
7.2.260.0070.01815.29
7.2.250.0060.02015.07
7.2.240.0070.01815.23
7.2.230.0070.01515.19
7.2.220.0080.01115.00
7.2.210.0100.01314.90
7.2.200.0040.01414.99
7.2.190.0070.01815.23
7.2.180.0100.01015.09
7.2.170.0050.01315.08
7.2.160.0100.01015.23
7.2.150.0070.01417.03
7.2.140.0000.02416.98
7.2.130.0030.01317.18
7.2.120.0030.01617.03
7.2.110.0040.01817.12
7.2.100.0060.01216.77
7.2.90.0060.01617.05
7.2.80.0090.00917.00
7.2.70.0030.01316.97
7.2.60.0100.01016.79
7.2.50.0040.01816.99
7.2.40.0060.01416.80
7.2.30.0030.01916.98
7.2.20.0070.01416.77
7.2.10.0060.01317.00
7.2.00.0000.01916.83
7.1.330.0030.01815.77
7.1.320.0020.02015.79
7.1.310.0070.01615.86
7.1.300.0080.01515.80
7.1.290.0030.01915.79
7.1.280.0020.01715.75
7.1.270.0020.01915.75
7.1.260.0050.01915.72
7.1.250.0030.01715.95
7.1.240.0000.02116.01
7.1.230.0000.02215.55
7.1.220.0060.01315.72
7.1.210.0030.01515.91
7.1.200.0090.01215.54
7.1.190.0070.01015.76
7.1.180.0070.01315.81
7.1.170.0030.02015.77
7.1.160.0040.01915.82
7.1.150.0000.02315.96
7.1.140.0130.01315.73
7.1.130.0060.01915.81
7.1.120.0000.02215.98
7.1.110.0110.01216.02
7.1.100.1260.01816.03
7.1.90.1150.01515.78
7.1.80.1080.01815.95
7.1.70.1220.01515.57
7.1.60.1200.01924.51
7.1.50.1260.01724.53
7.1.40.1370.02124.17
7.1.30.1450.01924.28
7.1.20.0880.01824.27
7.1.10.0820.02515.43
7.1.00.1290.01315.33
7.0.330.0000.02415.34
7.0.320.0070.01315.16
7.0.310.0090.01615.39
7.0.300.0060.01515.50
7.0.290.0120.00915.35
7.0.280.0000.02315.25
7.0.270.0090.01215.41
7.0.260.0030.02015.42
7.0.250.0070.02015.27
7.0.240.1290.01515.38
7.0.230.1360.01715.74
7.0.220.1080.01915.67
7.0.210.1160.02115.12
7.0.200.0920.01215.10
7.0.190.1000.01615.33
7.0.180.0870.01515.06
7.0.170.1220.01114.89
7.0.160.1160.02114.85
7.0.150.0800.01914.97
7.0.140.1200.01514.90
7.0.130.1160.01815.19
7.0.120.1230.01715.30
7.0.110.1230.01515.13
7.0.100.1180.01315.10
7.0.90.1220.02015.11
7.0.80.0880.01215.12
7.0.70.1280.01815.01
7.0.60.0940.01914.79
7.0.50.0960.01614.97
7.0.40.1240.01914.08
7.0.30.0960.01714.08
7.0.20.0110.01514.21
7.0.10.0080.01714.28
7.0.00.0110.01314.16
5.6.400.0040.01114.32
5.6.390.0000.01414.09
5.6.380.0040.00714.32
5.6.370.0090.00914.06
5.6.360.0030.01314.00
5.6.350.0060.00314.37
5.6.340.0030.01214.39
5.6.330.0050.00514.09
5.6.320.0090.00613.99
5.6.310.0080.00513.99
5.6.300.0070.00413.96
5.6.290.0080.00314.13
5.6.280.0070.01013.97
5.6.270.0070.00314.09
5.6.260.0060.00614.07
5.6.250.0080.00414.09
5.6.240.0040.01114.22
5.6.230.0060.00914.35
5.6.220.0100.00314.27
5.6.210.0100.00714.34
5.6.200.0080.00313.96
5.6.190.0090.00314.20
5.6.180.0030.00614.32
5.6.170.0120.00314.04
5.6.160.0000.00814.02
5.6.150.0060.00914.20
5.6.140.0120.00314.00
5.6.130.0070.01014.22
5.6.120.0060.01014.12
5.6.110.0090.00614.16
5.6.100.0160.00014.09
5.6.90.0080.00413.98
5.6.80.0000.01013.90
5.6.70.0060.00614.08
5.6.60.0060.00613.88
5.6.50.0000.01614.15
5.6.40.0000.01814.14
5.6.30.0030.01414.04
5.6.20.0040.01013.95
5.6.10.0110.00013.98
5.6.00.0060.00314.23

preferences:
28.78 ms | 401 KiB | 5 Q