3v4l.org

run code in 300+ PHP versions simultaneously
<?php function string_shift_left($input, $inputlen, $bits, &$output = null) { $skip = (int) ($bits / 8); $copylen = (int) ($inputlen - $skip); $offset = 8 - ($bits % 8); $mask = 0xff >> $offset; $output = str_pad('', $inputlen + 1, "\x00"); var_dump($skip, $copylen, $offset, $mask, $output); if ($offset == 8) { /* Shifting multiples of 8 allows us to simply copy the relevant bytes */ for ($i = 0; $i < $copylen; $i++) { $output[$i] = $input[$i + $skip]; } return; } for ($i = 0; $i < $copylen; $i++) { $output[$i] = chr((ord($input[$i + $skip]) << $offset) | (ord($input[$i + $skip + 1]) & $mask)); } } string_shift_left("\x01", 1, 3, $output); for ($i = 0; $i < strlen($output); $i++) { printf('%08b', ord($output[$i])); }

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)
8.3.60.0070.01118.56
8.3.50.0150.00322.05
8.3.40.0140.00019.02
8.3.30.0040.01120.35
8.3.20.0080.00020.39
8.3.10.0050.00322.13
8.3.00.0040.00422.43
8.2.180.0070.00717.00
8.2.170.0090.00622.96
8.2.160.0100.01022.25
8.2.150.0050.00324.18
8.2.140.0040.00424.66
8.2.130.0150.00026.16
8.2.120.0040.00419.66
8.2.110.0060.00322.30
8.2.100.0060.00618.03
8.2.90.0000.00819.28
8.2.80.0040.00419.21
8.2.70.0060.00317.75
8.2.60.0000.00818.04
8.2.50.0000.00818.07
8.2.40.0000.00718.34
8.2.30.0040.00718.19
8.2.20.0050.00217.72
8.2.10.0030.00517.68
8.2.00.0040.00817.71
8.1.280.0150.00625.92
8.1.270.0040.00424.66
8.1.260.0030.00526.35
8.1.250.0080.00028.09
8.1.240.0100.00723.82
8.1.230.0080.00319.14
8.1.220.0000.00917.88
8.1.210.0050.00318.77
8.1.200.0110.00017.25
8.1.190.0000.00717.64
8.1.180.0000.00819.14
8.1.170.0040.00418.70
8.1.160.0030.00322.15
8.1.150.0000.00718.66
8.1.140.0040.00417.31
8.1.130.0000.00717.79
8.1.120.0040.00417.38
8.1.110.0040.00417.53
8.1.100.0030.00417.36
8.1.90.0040.00417.39
8.1.80.0040.00417.46
8.1.70.0030.00317.44
8.1.60.0030.00617.59
8.1.50.0050.00317.51
8.1.40.0040.00417.54
8.1.30.0030.00617.67
8.1.20.0030.00517.65
8.1.10.0000.00717.50
8.1.00.0000.00817.53
8.0.300.0070.00018.77
8.0.290.0000.00817.18
8.0.280.0030.00318.46
8.0.270.0070.00017.27
8.0.260.0000.00616.79
8.0.250.0070.00017.07
8.0.240.0040.00416.93
8.0.230.0050.00217.04
8.0.220.0000.00716.98
8.0.210.0050.00316.84
8.0.200.0060.00016.99
8.0.190.0050.00317.04
8.0.180.0000.00717.02
8.0.170.0080.00016.97
8.0.160.0040.00417.02
8.0.150.0000.00816.87
8.0.140.0080.00016.93
8.0.130.0030.00313.36
8.0.120.0050.00216.99
8.0.110.0040.00416.92
8.0.100.0000.00716.87
8.0.90.0000.00716.79
8.0.80.0100.00716.95
8.0.70.0040.00416.90
8.0.60.0000.00717.08
8.0.50.0040.00416.91
8.0.30.0070.01117.08
8.0.20.0130.00517.40
8.0.10.0000.00817.12
8.0.00.0130.00416.87
7.4.330.0050.00015.09
7.4.320.0000.00616.57
7.4.300.0030.00316.46
7.4.290.0030.00316.56
7.4.280.0000.00816.63
7.4.270.0040.00416.48
7.4.260.0030.00313.21
7.4.250.0080.00016.46
7.4.240.0040.00316.55
7.4.230.0030.00316.71
7.4.220.0000.02016.64
7.4.210.0070.00916.56
7.4.200.0040.00416.61
7.4.190.0000.00716.68
7.4.160.0120.00416.33
7.4.150.0060.01317.40
7.4.140.0100.00817.86
7.4.130.0070.01016.41
7.4.120.0070.01016.54
7.4.110.0110.00616.61
7.4.100.0100.01316.69
7.4.90.0030.01316.68
7.4.80.0120.00419.39
7.4.70.0100.01016.48
7.4.60.0120.00616.63
7.4.50.0040.00416.42
7.4.40.0100.00322.77
7.4.30.0060.01216.66
7.4.00.0030.01214.84
7.3.330.0030.00213.46
7.3.320.0000.00513.30
7.3.310.0030.00416.43
7.3.300.0000.00716.45
7.3.290.0030.01516.43
7.3.280.0070.01116.46
7.3.270.0060.01117.40
7.3.260.0090.01216.42
7.3.250.0110.01016.54
7.3.240.0080.00816.36
7.3.230.0080.00816.44
7.3.210.0110.01116.41
7.3.200.0100.01019.39
7.3.190.0120.00416.71
7.3.180.0040.01516.38
7.3.170.0060.01016.51
7.3.160.0080.00816.64
7.3.120.0090.00915.06
7.3.110.0090.00914.73
7.3.100.0030.01314.79
7.3.90.0040.00714.81
7.3.80.0090.00614.77
7.3.70.0060.00915.06
7.3.60.0060.00614.72
7.3.50.0090.00614.85
7.3.40.0060.00314.98
7.3.30.0030.01314.78
7.3.20.0100.00616.82
7.3.10.0100.00716.76
7.3.00.0060.00916.63
7.2.330.0120.00916.43
7.2.320.0060.01116.87
7.2.310.0070.01016.80
7.2.300.0070.01516.62
7.2.290.0080.00816.44
7.2.250.0070.01015.14
7.2.240.0040.01415.29
7.2.230.0040.01115.27
7.2.220.0090.00915.06
7.2.210.0120.00314.92
7.2.200.0070.01014.97
7.2.190.0070.01115.06
7.2.180.0060.00914.90
7.2.170.0120.00315.14
7.2.60.0030.00916.74
7.1.330.0060.00915.48
7.1.320.0070.01015.99
7.1.310.0090.00616.13
7.1.300.0100.00315.55
7.1.290.0070.00315.86
7.1.280.0000.01115.82
7.1.270.0100.00315.69
7.1.260.0030.00815.84
7.1.200.0060.00815.86
7.1.100.0040.01118.04
7.1.70.0000.00917.19
7.1.60.0070.01719.43
7.1.50.0150.00816.84
7.1.00.0030.03722.43
7.0.200.0040.00716.92
7.0.140.0070.07022.00
7.0.100.0570.08019.95
7.0.90.0670.03319.88
7.0.80.0500.06320.04
7.0.70.0570.06719.91
7.0.60.0470.07320.10
7.0.50.0430.08020.32
7.0.40.0000.07320.11
7.0.30.0100.07720.19
7.0.20.0070.08020.05
7.0.10.0170.07020.07
7.0.00.0070.06720.09
5.6.280.0030.07321.05
5.6.250.0030.08720.64
5.6.240.0070.08720.71
5.6.230.0070.06020.61
5.6.220.0170.04320.62
5.6.210.0100.06720.62
5.6.200.0130.06320.98
5.6.190.0100.08021.09
5.6.180.0070.08020.99
5.6.170.0030.09021.04
5.6.160.0030.04321.06
5.6.150.0030.04321.05
5.6.140.0030.05021.09
5.6.130.0070.04721.01
5.6.120.0100.05320.97
5.6.110.0000.04720.94
5.6.100.0070.04021.02
5.6.90.0070.04021.01
5.6.80.0070.04720.45
5.6.70.0070.03720.53
5.6.60.0100.04020.33
5.6.50.0100.03320.52
5.6.40.0070.07720.45
5.6.30.0000.07320.39
5.6.20.0030.04020.45
5.6.10.0030.04020.41
5.6.00.0100.03720.41
5.5.380.0100.07020.37
5.5.370.0070.07720.41
5.5.360.0000.08720.33
5.5.350.0130.07720.39
5.5.340.0070.07720.88
5.5.330.0130.08020.95
5.5.320.0170.07320.76
5.5.310.0070.07720.82
5.5.300.0070.08320.65
5.5.290.0100.07320.89
5.5.280.0170.05320.94
5.5.270.0100.03320.92
5.5.260.0070.03720.65
5.5.250.0000.04320.77
5.5.240.0070.04020.33
5.5.230.0030.04020.27
5.5.220.0070.03720.19
5.5.210.0000.06320.25
5.5.200.0070.03320.25
5.5.190.0030.03720.08
5.5.180.0070.03720.25
5.5.160.0030.04020.26
5.5.150.0070.04020.22
5.5.140.0070.03720.24
5.5.130.0030.03720.22
5.5.120.0170.02320.16
5.5.110.0030.04020.29
5.5.100.0000.04320.03
5.5.90.0000.04020.11
5.5.80.0000.04720.12
5.5.70.0070.04020.13
5.5.60.0100.03020.07
5.5.50.0030.03720.17
5.5.40.0000.04020.16
5.5.30.0030.04020.00
5.5.20.0000.04320.06
5.5.10.0100.03320.07
5.5.00.0070.07719.98
5.4.450.0000.04319.18
5.4.440.0100.03319.51
5.4.430.0000.04319.42
5.4.420.0070.03719.19
5.4.410.0100.07019.35
5.4.400.0100.05718.95
5.4.390.0130.05719.21
5.4.380.0070.04319.10
5.4.370.0100.03019.16
5.4.360.0000.04019.05
5.4.350.0030.06719.04
5.4.340.0100.03019.12
5.4.320.0100.03319.04
5.4.310.0100.04319.09
5.4.300.0100.03319.23
5.4.290.0070.06019.14
5.4.280.0000.04319.14
5.4.270.0000.04018.86
5.4.260.0100.03019.03
5.4.250.0070.03319.02
5.4.240.0070.03319.13
5.4.230.0070.03319.23
5.4.220.0030.03719.16
5.4.210.0000.04019.04
5.4.200.0030.05019.25
5.4.190.0000.04019.23
5.4.180.0000.07018.84
5.4.170.0070.03319.11
5.4.160.0030.03719.23
5.4.150.0000.06018.93
5.4.140.0000.06016.43
5.4.130.0030.07716.45
5.4.120.0130.06716.50
5.4.110.0030.07316.32
5.4.100.0070.07316.44
5.4.90.0000.05016.35
5.4.80.0030.07316.46
5.4.70.0100.06316.48
5.4.60.0230.05316.30
5.4.50.0130.06316.49
5.4.40.0070.07016.51
5.4.30.0070.05016.34
5.4.20.0070.07016.44
5.4.10.0100.07016.41
5.4.00.0100.07015.88
5.3.290.0070.06314.68
5.3.280.0030.03714.66
5.3.270.0030.05014.55
5.3.260.0030.03714.69
5.3.250.0000.04014.67
5.3.240.0200.05714.59
5.3.230.0070.06714.70
5.3.220.0130.07314.68
5.3.210.0130.06714.53
5.3.200.0100.07314.56
5.3.190.0130.07314.71
5.3.180.0000.07714.51
5.3.170.0070.07014.71
5.3.160.0070.06714.64
5.3.150.0130.07014.63
5.3.140.0070.07714.69
5.3.130.0070.07014.54
5.3.120.0130.07014.63
5.3.110.0030.07714.48
5.3.100.0030.08014.06
5.3.90.0170.05014.01
5.3.80.0000.05013.96
5.3.70.0030.07713.95
5.3.60.0070.07714.04
5.3.50.0000.04714.00
5.3.40.0000.07713.95
5.3.30.0030.06713.95
5.3.20.0070.05013.69
5.3.10.0100.07313.73
5.3.00.0100.06713.69
5.2.170.0100.05711.21
5.2.160.0070.06011.23
5.2.150.0100.05711.09
5.2.140.0070.06011.25
5.2.130.0070.05711.17
5.2.120.0000.06711.13
5.2.110.0070.06011.17
5.2.100.0070.06011.23
5.2.90.0130.05311.14
5.2.80.0100.04011.00
5.2.70.0100.05311.17
5.2.60.0070.06010.98
5.2.50.0000.06711.06
5.2.40.0100.05711.00
5.2.30.0100.05711.05
5.2.20.0000.06310.85
5.2.10.0070.03010.97
5.2.00.0070.05710.68
5.1.60.0100.05010.21
5.1.50.0100.03710.21
5.1.40.0100.04710.21
5.1.30.0000.05310.36
5.1.20.0030.05710.46
5.1.10.0000.06010.21
5.1.00.0100.05010.21
5.0.50.0070.03310.21
5.0.40.0030.04710.21
5.0.30.0100.05710.21
5.0.20.0000.04310.21
5.0.10.0000.02710.21
5.0.00.0030.06710.21
4.4.90.0000.02010.21
4.4.80.0070.03010.21
4.4.70.0070.01310.21
4.4.60.0000.03310.21
4.4.50.0100.02710.21
4.4.40.0030.04010.21
4.4.30.0100.02310.21
4.4.20.0070.03310.21
4.4.10.0030.03710.21
4.4.00.0000.05310.21
4.3.110.0000.03710.21
4.3.100.0000.03710.21
4.3.90.0030.03310.21
4.3.80.0070.05010.21
4.3.70.0030.03710.21
4.3.60.0000.03310.21
4.3.50.0070.02310.21
4.3.40.0030.04010.21
4.3.30.0030.03310.21
4.3.20.0030.03710.21
4.3.10.0000.03710.21
4.3.00.0030.03310.21

preferences:
36.19 ms | 401 KiB | 5 Q