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 = $bits % 8; $mask = (0xff >> $offset) << (8 - $offset); $output = str_pad('', $inputlen + 1, "\x00"); var_dump($skip, $copylen, $offset, $mask, $output); if ($offset == 0) { /* 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++) { $left = (ord($input[$i + $skip]) << $offset); $right = (ord($input[$i + $skip + 1]) & $mask); printf("%08b|%08b\n", $left, $right); $output[$i] = chr($left | $right); } } string_shift_left("\x01\x01\x00", 2, 7, $output); for ($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)
8.3.40.0140.00018.57
8.3.30.0080.00819.04
8.3.20.0050.00320.21
8.3.10.0040.00422.04
8.3.00.0000.00822.39
8.2.170.0040.01122.96
8.2.160.0070.00719.33
8.2.150.0000.01624.18
8.2.140.0050.00324.66
8.2.130.0110.00326.16
8.2.120.0000.00719.95
8.2.110.0110.00020.52
8.2.100.0040.00817.91
8.2.90.0090.00019.19
8.2.80.0050.00317.97
8.2.70.0040.00417.61
8.2.60.0050.00518.16
8.2.50.0000.00718.34
8.2.40.0040.00420.65
8.2.30.0030.00621.16
8.2.20.0040.00417.75
8.2.10.0030.00519.45
8.2.00.0000.00717.66
8.1.270.0040.00421.82
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0160.00624.02
8.1.230.0040.00817.89
8.1.220.0080.00017.77
8.1.210.0000.00818.77
8.1.200.0080.00317.48
8.1.190.0080.00017.13
8.1.180.0000.00818.10
8.1.170.0090.00018.62
8.1.160.0040.00418.93
8.1.150.0030.00520.04
8.1.140.0000.00817.51
8.1.130.0060.00317.84
8.1.120.0000.00717.47
8.1.110.0000.00917.36
8.1.100.0040.00417.36
8.1.90.0050.00317.35
8.1.80.0040.00417.34
8.1.70.0050.00217.43
8.1.60.0040.00417.66
8.1.50.0000.00817.49
8.1.40.0040.00417.43
8.1.30.0040.00417.65
8.1.20.0040.00417.64
8.1.10.0020.00517.53
8.1.00.0040.00417.54
8.0.300.0070.00018.77
8.0.290.0070.00016.63
8.0.280.0030.00318.42
8.0.270.0030.00317.20
8.0.260.0000.00816.83
8.0.250.0000.00716.92
8.0.240.0040.00416.92
8.0.230.0000.00716.87
8.0.220.0000.00716.88
8.0.210.0030.00316.90
8.0.200.0030.00316.96
8.0.190.0070.00017.01
8.0.180.0000.00716.92
8.0.170.0050.00316.83
8.0.160.0030.00516.98
8.0.150.0000.00816.83
8.0.140.0040.00416.86
8.0.130.0000.00513.37
8.0.120.0090.00016.80
8.0.110.0000.00716.95
8.0.100.0000.00716.96
8.0.90.0070.00016.89
8.0.80.0060.00916.89
8.0.70.0000.00716.75
8.0.60.0070.00016.80
8.0.50.0040.00416.91
8.0.30.0120.01117.29
8.0.20.0070.01317.40
8.0.10.0020.00516.91
8.0.00.0110.00716.79
7.4.330.0030.00415.00
7.4.320.0030.00316.68
7.4.300.0030.00316.63
7.4.290.0070.00016.52
7.4.280.0070.00016.61
7.4.270.0000.00816.42
7.4.260.0000.00716.49
7.4.250.0000.00716.52
7.4.240.0040.00316.51
7.4.230.0050.00316.61
7.4.220.0160.00316.63
7.4.210.0110.00416.53
7.4.200.0000.00716.46
7.4.190.0030.00316.59
7.4.160.0060.00916.64
7.4.150.0040.01417.40
7.4.140.0060.01317.86
7.4.130.0110.00916.48
7.4.120.0100.00716.61
7.4.110.0080.00816.74
7.4.100.0060.01216.43
7.4.90.0110.00816.57
7.4.80.0070.01019.39
7.4.70.0090.01216.66
7.4.60.0100.00716.57
7.4.50.0040.00016.41
7.4.40.0040.01122.77
7.4.30.0080.00816.56
7.4.00.0070.00715.00
7.3.330.0000.00513.37
7.3.320.0000.00513.41
7.3.310.0040.00416.28
7.3.300.0070.00016.30
7.3.290.0100.00716.37
7.3.280.0060.01316.38
7.3.270.0090.00617.40
7.3.260.0140.00316.28
7.3.250.0150.00216.41
7.3.240.0130.00716.42
7.3.230.0060.00916.41
7.3.210.0000.01816.42
7.3.200.0140.00719.39
7.3.190.0070.01016.68
7.3.180.0110.00616.52
7.3.170.0180.00316.54
7.3.160.0140.00316.41
7.3.120.0030.01314.83
7.3.110.0070.01014.88
7.3.100.0070.01014.81
7.3.90.0000.01514.61
7.3.80.0030.00714.92
7.3.70.0040.00714.81
7.3.60.0000.01414.96
7.3.50.0090.00014.86
7.3.40.0000.01114.91
7.3.30.0030.01014.84
7.3.20.0060.00616.50
7.3.10.0040.00916.49
7.3.00.0090.00516.59
7.2.330.0110.00716.86
7.2.320.0040.01316.76
7.2.310.0100.00716.48
7.2.300.0110.00716.77
7.2.290.0110.00616.61
7.2.250.0040.01515.29
7.2.240.0130.00015.10
7.2.230.0000.01415.13
7.2.220.0030.00915.35
7.2.210.0100.00314.91
7.2.200.0100.00715.20
7.2.190.0040.00815.20
7.2.180.0030.00715.13
7.2.170.0070.00714.83
7.2.160.0060.00914.91
7.2.150.0100.00317.16
7.2.140.0040.01116.98
7.2.130.0040.00816.97
7.2.120.0080.00616.94
7.2.110.0080.00416.82
7.2.100.0070.00716.84
7.2.90.0070.00716.81
7.2.80.0050.00616.86
7.2.70.0060.00716.91
7.2.60.0080.00616.79
7.2.50.0060.00716.84
7.2.40.0060.00816.90
7.2.30.0090.00816.88
7.2.20.0090.00716.72
7.2.10.0070.00916.85
7.2.00.0070.00717.49
7.1.330.0120.00615.80
7.1.320.0040.00715.82
7.1.310.0040.00815.66
7.1.300.0100.00015.66
7.1.290.0060.00615.84
7.1.280.0100.00615.61
7.1.270.0090.00615.89
7.1.260.0060.01016.03
7.1.250.0090.00315.77
7.1.240.0090.00515.90
7.1.230.0080.00615.70
7.1.220.0080.00615.82
7.1.210.0120.00315.51
7.1.200.0070.01015.68
7.1.190.0080.00615.63
7.1.180.0090.00715.85
7.1.170.0050.00915.96
7.1.160.0080.00615.89
7.1.150.0120.00515.66
7.1.140.0110.00515.81
7.1.130.0050.00515.78
7.1.120.0050.00815.70
7.1.110.0100.00115.84
7.1.100.0100.00416.60
7.1.90.0060.00715.59
7.1.80.0080.01115.85
7.1.70.0040.01116.09
7.1.60.0100.01017.10
7.1.50.0120.01222.08
7.1.40.0110.01015.81
7.1.30.0070.00715.59
7.1.20.0090.00715.85
7.1.10.0090.01115.79
7.1.00.0050.03417.91
7.0.330.0080.00415.35
7.0.320.0070.00815.40
7.0.310.0070.00415.50
7.0.300.0040.00915.31
7.0.290.0090.00515.32
7.0.280.0110.00515.43
7.0.270.0100.00315.36
7.0.260.0050.00915.43
7.0.250.0100.00615.31
7.0.240.0050.00815.24
7.0.230.0070.00715.39
7.0.220.0050.01015.37
7.0.210.0050.00815.40
7.0.200.0080.00715.84
7.0.190.0070.00915.30
7.0.180.0080.00615.42
7.0.170.0080.00915.39
7.0.160.0060.01215.30
7.0.150.0080.00515.26
7.0.140.0050.03317.63
7.0.130.0080.00515.17
7.0.120.0130.00415.39
7.0.110.0110.00515.39
7.0.100.0140.00315.33
7.0.90.0130.00715.28
7.0.80.0060.00915.40
7.0.70.0100.00415.34
7.0.60.0100.03016.79
7.0.50.0060.03216.21
7.0.40.0060.03415.64
7.0.30.0110.02915.60
7.0.20.0140.02915.69
7.0.10.0110.01815.66
7.0.00.0050.02515.64
5.6.400.0140.00014.71
5.6.390.0090.00614.46
5.6.380.0040.00414.64
5.6.370.0080.00314.70
5.6.360.0060.00814.62
5.6.350.0030.00814.74
5.6.340.0080.00614.13
5.6.330.0080.00514.54
5.6.320.0020.01314.35
5.6.310.0050.00714.33
5.6.300.0070.00914.44
5.6.290.0060.00914.28
5.6.280.0060.02716.66
5.6.270.0050.00914.57
5.6.260.0040.01014.19
5.6.250.0050.00714.16
5.6.240.0030.01014.37
5.6.230.0070.00914.52
5.6.220.0030.01014.51
5.6.210.0100.01516.40
5.6.200.0050.03415.49
5.6.190.0040.03216.35
5.6.180.1110.01916.47
5.6.170.0090.01816.38
5.6.160.0060.02616.41
5.6.150.0050.03215.67
5.6.140.0060.03015.60
5.6.130.0050.02415.68
5.6.120.0110.02816.57
5.6.110.0100.03116.54
5.6.100.0050.03516.51
5.6.90.0070.01816.55
5.6.80.0030.03016.30
5.6.70.0180.02716.34
5.6.60.0060.00914.15
5.6.50.0040.01114.16
5.6.40.0080.00714.18
5.6.30.0070.00814.35
5.6.20.0060.00914.26
5.6.10.0080.00714.38
5.6.00.0050.00914.42
5.5.380.0040.00712.97
5.5.370.0060.00713.02
5.5.360.0070.00512.62
5.5.350.0060.02715.32
5.5.340.0050.03314.46
5.5.330.0050.03015.24
5.5.320.0110.02615.22
5.5.310.0150.02515.30
5.5.300.0040.01814.59
5.5.290.0080.02914.53
5.5.280.0070.02815.52
5.5.270.0040.03515.58
5.5.260.0070.03215.50
5.5.250.0060.03015.21
5.5.240.0090.02615.29
5.5.230.0060.00712.67
5.5.220.0070.00312.64
5.5.210.0090.00512.52
5.5.200.0050.00712.81
5.5.190.0050.00812.78
5.5.180.0070.00512.75
5.5.170.0050.00912.78
5.5.160.0080.00612.72
5.5.150.0050.00612.79
5.5.140.0030.00912.62
5.5.130.0050.00312.52
5.5.120.0090.00112.83
5.5.110.0050.01012.60
5.5.100.0050.00312.63
5.5.90.0060.00812.69
5.5.80.0030.00812.58
5.5.70.0070.00512.69
5.5.60.0050.00812.86
5.5.50.0030.00812.71
5.5.40.0050.00712.87
5.5.30.0070.00512.69
5.5.20.0090.00412.67
5.5.10.0070.00312.64
5.5.00.0080.00312.80
5.4.450.0180.02914.20
5.4.440.0250.02514.24
5.4.430.0080.02314.20
5.4.420.0070.02214.29
5.4.410.0080.02214.17
5.4.400.0080.01814.05
5.4.390.0080.02014.02
5.4.380.0120.02614.04
5.4.370.0100.02213.98
5.4.360.0070.02013.96
5.4.350.0110.01814.08
5.4.340.0070.02413.96
5.4.330.0030.00611.54
5.4.320.0040.01611.90
5.4.310.0040.01711.84
5.4.300.0070.01911.88
5.4.290.0050.01911.96
5.4.280.0060.01611.80
5.4.270.0070.02714.13
5.4.260.0120.02113.99
5.4.250.0070.02314.16
5.4.240.0070.02213.99
5.4.230.0090.03214.08
5.4.220.0080.02514.08
5.4.210.0070.02814.02
5.4.200.0060.01914.02
5.4.190.0060.02414.00
5.4.180.0080.02313.92
5.4.170.0110.01914.03
5.4.160.0050.02613.95
5.4.150.0100.02914.00
5.4.140.0090.01913.20
5.4.130.0110.02113.14
5.4.120.0090.01913.18
5.4.110.0060.02713.13
5.4.100.0060.02613.27
5.4.90.0030.02613.18
5.4.80.0080.02613.17
5.4.70.0070.02013.13
5.4.60.0050.03013.16
5.4.50.0060.02513.20
5.4.40.0070.02313.15
5.4.30.0060.02513.29
5.4.20.0030.03013.26
5.4.10.0040.02513.12
5.4.00.0080.01512.95
5.3.290.0050.02011.94
5.3.280.0060.02912.54
5.3.270.0090.02312.55
5.3.260.0070.02312.57
5.3.250.0120.01912.62
5.3.240.0040.02312.56
5.3.230.0060.02912.58
5.3.220.0050.02212.52
5.3.210.0070.02812.55
5.3.200.0070.01912.50
5.3.190.0070.02112.56
5.3.180.0050.02112.59
5.3.170.0070.02112.55
5.3.160.0060.01812.55
5.3.150.0080.02412.49
5.3.140.0070.01712.58
5.3.130.0030.02312.55
5.3.120.0080.02712.55
5.3.110.0080.02612.57
5.3.100.0060.02412.39
5.3.90.0040.02412.34
5.3.80.0050.02212.42
5.3.70.0100.02012.40
5.3.60.0070.02512.30
5.3.50.0090.02112.40
5.3.40.0030.02412.33
5.3.30.0060.02012.26
5.3.20.0000.02512.30
5.3.10.0090.02612.22
5.3.00.0040.02512.21
5.2.170.0070.02611.06
5.2.160.0150.02311.02
5.2.150.0080.02111.03
5.2.140.0060.02811.06
5.2.130.0040.02811.00
5.2.120.0030.02510.99
5.2.110.0050.02711.00
5.2.100.0030.03311.10
5.2.90.0030.03111.12
5.2.80.0030.03311.04
5.2.70.0060.02411.11
5.2.60.0040.03410.98
5.2.50.0050.02711.01
5.2.40.0090.02411.00
5.2.30.0030.02710.98
5.2.20.0050.02410.97
5.2.10.0090.02510.80
5.2.00.0070.02610.86
5.1.60.0040.02410.46
5.1.50.0090.01810.53
5.1.40.0070.01810.43
5.1.30.0070.02210.57
5.1.20.0060.02310.67
5.1.10.0060.02710.61
5.1.00.0020.02510.54
5.0.50.0050.0229.73
5.0.40.0060.0159.64
5.0.30.0030.0309.61
5.0.20.0030.0199.54
5.0.10.0080.0189.67
5.0.00.0000.0279.62
4.4.90.0000.0208.91
4.4.80.0020.0188.91
4.4.70.0020.0158.91
4.4.60.0050.0128.91
4.4.50.0020.0138.91
4.4.40.0050.0238.91
4.4.30.0020.0148.91
4.4.20.0030.0178.91
4.4.10.0030.0138.91
4.4.00.0000.0198.91
4.3.110.0030.0188.91
4.3.100.0000.0158.91
4.3.90.0030.0148.91
4.3.80.0030.0208.91
4.3.70.0070.0138.91
4.3.60.0030.0118.91
4.3.50.0080.0128.91
4.3.40.0050.0238.91
4.3.30.0050.0108.91
4.3.20.0030.0148.91
4.3.10.0030.0128.91
4.3.00.0080.0149.14

preferences:
49.15 ms | 400 KiB | 5 Q