3v4l.org

run code in 300+ PHP versions simultaneously
<?php function gdr_encode($val) { $str = ''; while ($val > 0) { $str .= chr($val & 0xFF); $val = $val >> 8; } return str_replace(array('/', '='), array('_', ''), base64_encode($str)); } function gdr_decode($bin) { $str = base64_decode(str_replace('_', '/', $bin)); $val = 0; for ($i=0; $i<strlen($str); $i++) { $val |= ord($str[$i]) << $i*8; } return $val; } mt_srand(42); for ($i=0; $i<32; $i++) { $val = 1<<$i; $val += mt_rand(0, $val/2); $enc = gdr_encode($val); $dec = gdr_decode($enc); 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)
7.4.10.0090.00614.90
7.4.00.0110.00714.98
7.3.130.0110.00415.04
7.3.120.0070.01014.75
7.3.110.0060.01114.61
7.3.100.0060.01214.93
7.3.90.0100.01015.06
7.3.80.0030.01014.83
7.3.70.0080.00814.64
7.3.60.0030.01314.95
7.3.50.0080.00314.95
7.3.40.0040.00714.89
7.3.30.0030.01014.83
7.3.20.0080.00416.32
7.3.10.0060.01316.71
7.3.00.0040.01116.55
7.2.260.0070.01315.20
7.2.250.0100.00414.71
7.2.240.0030.01214.87
7.2.230.0000.01515.03
7.2.220.0120.00914.73
7.2.210.0040.00715.32
7.2.200.0040.00814.97
7.2.190.0070.01015.16
7.2.180.0050.00514.78
7.2.170.0070.00715.22
7.2.160.0070.00714.97
7.2.150.0060.01317.04
7.2.140.0070.01016.81
7.2.130.0070.00716.70
7.2.120.0100.00717.06
7.2.110.0030.01317.11
7.2.100.0100.00316.89
7.2.90.0060.01217.09
7.2.80.0090.00616.81
7.2.70.0100.00717.11
7.2.60.0000.01117.15
7.2.50.0070.01017.02
7.2.40.0090.00616.91
7.2.30.0110.00417.13
7.2.20.0090.00617.06
7.2.10.0040.00717.02
7.2.00.0080.00817.97
7.1.330.0140.00015.96
7.1.320.0000.01815.81
7.1.310.0030.01215.71
7.1.300.0000.01415.73
7.1.290.0000.01015.57
7.1.280.0000.01615.77
7.1.270.0030.01415.72
7.1.260.0060.00615.81
7.1.250.0000.01415.82
7.1.240.0140.00315.77
7.1.230.0070.01015.96
7.1.220.0040.00815.72
7.1.210.0070.00715.68
7.1.200.0000.01315.84
7.1.190.0070.01115.71
7.1.180.0030.00715.67
7.1.170.0030.00915.83
7.1.160.0090.00315.89
7.1.150.0000.00916.02
7.1.140.0090.00415.76
7.1.130.0100.00015.68
7.1.120.0080.00815.83
7.1.110.0120.00315.84
7.1.100.0030.01615.66
7.1.90.0050.00515.93
7.1.80.0090.00615.93
7.1.70.0100.00316.52
7.1.60.0030.01717.63
7.1.50.0080.01016.26
7.1.40.0080.00315.87
7.1.30.0070.01015.82
7.1.20.0090.00615.90
7.1.10.0040.01115.53
7.1.00.0120.03319.13
7.0.330.0090.00315.55
7.0.320.0060.01015.63
7.0.310.0070.01115.45
7.0.300.0080.00815.43
7.0.290.0080.00815.63
7.0.280.0070.00315.60
7.0.270.0030.00815.30
7.0.260.0040.01115.34
7.0.250.0100.01015.54
7.0.240.0070.00715.52
7.0.230.0060.00615.33
7.0.220.0090.00915.39
7.0.210.0100.00715.39
7.0.200.0080.00316.18
7.0.190.0040.00415.48
7.0.180.0030.01015.64
7.0.170.0060.00615.58
7.0.160.0040.01115.59
7.0.150.0080.00815.29
7.0.140.0070.03418.81
7.0.130.0000.01715.40
7.0.120.0060.00315.50
7.0.110.0000.01115.27
7.0.100.0090.00615.58
7.0.90.0040.01115.55
7.0.80.0070.00715.34
7.0.70.0030.00615.47
7.0.60.0070.04717.51
7.0.50.0030.04716.58
7.0.40.0080.03716.85
7.0.30.0200.03716.88
7.0.20.0170.04316.87
7.0.10.0080.04616.73
7.0.00.0030.03416.76
5.6.400.0000.01514.26
5.6.390.0030.01014.50
5.6.380.0070.01014.26
5.6.370.0080.00814.26
5.6.360.0060.00614.75
5.6.350.0060.00314.32
5.6.340.0040.00714.37
5.6.330.0030.01214.62
5.6.320.0070.01314.48
5.6.310.0030.01414.52
5.6.300.0100.00014.73
5.6.290.0030.00714.40
5.6.280.0050.03917.85
5.6.270.0030.00614.28
5.6.260.0070.00714.34
5.6.250.0030.01014.38
5.6.240.0060.00914.41
5.6.230.0000.01514.43
5.6.220.0130.00014.33
5.6.210.0030.04017.49
5.6.200.0050.02916.20
5.6.190.0090.02517.56
5.6.180.0170.04317.50
5.6.170.0130.02317.52
5.6.160.0090.02717.57
5.6.150.0080.04216.47
5.6.140.0080.01816.17
5.6.130.0020.03116.30
5.6.120.0080.03317.65
5.6.110.0080.02117.72
5.6.100.0080.04517.73
5.6.90.0060.02417.91
5.6.80.0120.02717.41
5.6.70.0070.01114.60
5.6.60.0090.00314.12
5.6.50.0100.00314.50
5.6.40.0040.01114.28
5.6.30.0030.00614.39
5.6.20.0100.00314.21
5.6.10.0070.00714.55
5.6.00.0080.00614.33
5.5.380.0030.01014.39
5.5.370.0070.00714.72
5.5.360.0030.00714.39
5.5.350.0140.04217.44
5.5.340.0090.03716.13
5.5.330.0090.04017.44
5.5.320.0160.03917.46
5.5.310.0180.03917.38
5.5.300.0020.03016.07
5.5.290.0070.04616.16
5.5.280.0010.03117.71
5.5.270.0110.01917.61
5.5.260.0050.04217.79
5.5.250.0070.02517.44
5.5.240.0030.01817.22
5.5.230.0000.01414.55
5.5.220.0070.01014.39
5.5.210.0040.00714.11
5.5.200.0030.01414.21
5.5.190.0060.00614.42
5.5.180.0060.00614.48
5.5.170.0030.01014.32
5.5.160.0070.00714.11
5.5.150.0090.00614.21
5.5.140.0070.00714.43
5.5.130.0040.00714.15
5.5.120.0120.00314.38
5.5.110.0080.00414.20
5.5.100.0000.00914.54
5.5.90.0070.00714.10
5.5.80.0040.00714.21
5.5.70.0100.00614.43
5.5.60.0040.00814.38
5.5.50.0030.01014.37
5.5.40.0040.00414.30
5.5.30.0030.01014.42
5.5.20.0040.01114.26
5.5.10.0130.00014.44
5.5.00.0030.00614.08
5.4.450.2070.02015.31
5.4.440.1680.02415.46
5.4.430.1770.02215.41
5.4.420.1700.02315.34
5.4.410.1690.02515.33
5.4.400.1720.02215.20
5.4.390.1670.02315.31
5.4.380.1920.02015.25
5.4.370.1820.02015.26
5.4.360.1760.01615.17
5.4.350.1750.02415.17
5.4.340.1570.02415.13
5.4.330.0030.00611.27
5.4.320.1620.02615.23
5.4.310.1530.02115.08
5.4.300.1750.02015.29
5.4.290.1700.02715.22
5.4.280.1830.02315.11
5.4.270.1800.02115.26
5.4.260.1820.02315.12
5.4.250.2100.01715.18
5.4.240.2030.02315.24
5.4.230.0070.02715.24
5.4.220.1580.02115.06
5.4.210.1660.02115.11
5.4.200.1630.02515.17
5.4.190.1800.01915.13
5.4.180.1700.02015.06
5.4.170.1660.01615.23
5.4.160.1470.02215.21
5.4.150.1750.01515.10
5.4.140.1520.02513.90
5.4.130.1730.02013.86
5.4.120.1570.02213.81
5.4.110.1330.02713.89
5.4.100.2050.02314.00
5.4.90.2080.01913.84
5.4.80.2420.01813.93
5.4.70.1730.02113.75
5.4.60.2080.02213.88
5.4.50.1920.02213.90
5.4.40.1880.01813.82
5.4.30.2080.02013.88
5.4.20.2020.02513.75
5.4.10.2030.02513.90
5.4.00.2100.02013.59
5.3.290.1740.01813.01
5.3.280.0070.02813.05
5.3.270.1650.02312.89
5.3.260.1600.02013.06
5.3.250.1550.02212.93
5.3.240.1520.02312.96
5.3.230.1620.02512.93
5.3.220.1830.02313.00
5.3.210.1820.02212.96
5.3.200.2050.02012.99
5.3.190.2030.02312.91
5.3.180.2100.02212.88
5.3.170.2060.02312.95
5.3.160.1920.02012.95
5.3.150.2000.01913.00
5.3.140.2090.01812.96
5.3.130.1970.02112.87
5.3.120.2070.02312.92
5.3.110.2350.02412.87
5.3.100.2010.02012.71
5.3.90.2020.02012.76
5.3.80.1950.02412.61
5.3.70.1980.02012.64
5.3.60.1950.01512.65
5.3.50.1970.02712.73
5.3.40.1970.02012.62
5.3.30.1850.02112.54
5.3.20.2100.02012.50
5.3.10.2040.02012.43
5.3.00.1880.01812.52
5.2.170.3430.03011.20
5.2.160.2800.02711.11
5.2.150.3470.03011.32
5.2.140.3170.02311.24
5.2.130.3070.02311.04
5.2.120.3170.03011.16
5.2.110.3100.03011.11
5.2.100.2800.03010.98
5.2.90.2730.02711.34
5.2.80.2630.03011.11
5.2.70.2570.02711.11
5.2.60.3200.03011.13
5.2.50.3130.02711.14
5.2.40.2700.03311.07
5.2.30.2470.03311.07
5.2.20.2800.03311.18
5.2.10.2630.02310.77
5.2.00.2870.03310.66
5.1.60.2870.0239.88
5.1.50.2200.0279.94
5.1.40.2700.02310.11
5.1.30.2870.02310.42
5.1.20.2800.03310.49
5.1.10.2600.02710.30
5.1.00.2030.0279.96
5.0.50.1300.0179.49
5.0.40.1300.0139.49
5.0.30.1100.0279.49
5.0.20.1470.0209.49
5.0.10.1230.0209.49
5.0.00.1300.0279.49
4.4.90.1270.0139.49
4.4.80.1430.0139.49
4.4.70.1230.0179.49
4.4.60.1230.0179.49
4.4.50.1400.0139.49
4.4.40.1400.0279.49
4.4.30.1600.0179.49
4.4.20.1700.0109.49
4.4.10.1300.0179.49
4.4.00.1230.0279.49
4.3.110.1070.0139.49
4.3.100.1330.0209.49
4.3.90.1070.0179.49
4.3.80.1330.0309.49
4.3.70.1200.0179.49
4.3.60.0930.0239.49
4.3.50.1430.0179.49
4.3.40.1500.0239.49
4.3.30.0700.0279.49
4.3.20.0730.0239.49
4.3.10.0730.0179.49
4.3.00.0900.0239.49

preferences:
43.36 ms | 400 KiB | 5 Q