3v4l.org

run code in 300+ PHP versions simultaneously
<?php $n = 2147483647; shift($n); echo "\n"; echo "\n"; echo "\n"; echo "\n"; $n = 2147483648; shift($n); function out($a, $b, $c, $b2 = '0', $c1 = ' ') { $padstra = 40; $padstrb = 23; echo str_pad($a, $padstra, ' ', STR_PAD_LEFT) . " " . str_pad(decbin($b), 32, $b2, STR_PAD_LEFT) . " " . str_pad($c, $padstrb, $c1) . "\n"; } function shift($n) { out($n , $n , '$n' ); echo "\n"; out('A:', $n >> 1 , '$n >> 1' ); out('B:', 0xFFFFFFFF , '0xFFFFFFFF' ); out('A & B:', ($n >> 1) & 0xFFFFFFFF , '($n >> 1) & 0xFFFFFFFF' ); echo "\n"; out('C:', $n , '$n' ); out('D:', 0x00000001 , '0x00000001' ); out('C & D:', $n & 0x00000001 , '$n & 0x00000001' ); echo "\n"; out('C & D:', $n & 0x00000001 , '$n & 0x00000001' ); out('(C & D) << 31:', ($n & 0x00000001) << 31 , '($n & 0x00000001) << 31' ); echo "\n"; out('A & B:', ($n >> 1) & 0xFFFFFFFF , '($n >> 1) & 0xFFFFFFFF' ); out('(C & D) << 31:', ($n & 0x00000001) << 31 , '($n & 0x00000001) << 31' ); out('(A & B) | ((C & D) << 31):', ($n >> 1) & 0xFFFFFFFF | ($n & 0x00000001) << 31 , '($n >> 1) & 0xFFFFFFFF | ($n & 0x00000001) << 31'); }

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)
8.3.70.0070.00716.75
8.3.60.0130.00318.43
8.3.50.0070.01017.96
8.3.40.0120.00318.55
8.3.30.0070.01018.71
8.3.20.0000.00721.90
8.3.10.0050.00318.73
8.3.00.0040.00419.23
8.2.190.0070.00718.18
8.2.180.0140.00718.17
8.2.170.0100.00722.96
8.2.160.0110.00419.46
8.2.150.0040.00424.18
8.2.140.0060.00324.66
8.2.130.0080.00020.36
8.2.120.0000.00826.35
8.2.110.0100.01621.00
8.2.100.0080.00319.76
8.2.90.0050.00319.22
8.2.80.0060.00317.97
8.2.70.0080.00017.63
8.2.60.0040.00418.05
8.2.50.0030.00618.07
8.2.40.0060.00318.16
8.2.30.0060.00318.13
8.2.20.0040.00418.07
8.2.10.0050.00219.32
8.2.00.0000.00718.04
8.1.280.0070.01425.92
8.1.270.0090.00020.28
8.1.260.0050.00326.35
8.1.250.0040.00428.09
8.1.240.0030.00723.92
8.1.230.0120.00017.55
8.1.220.0090.00017.79
8.1.210.0000.00818.77
8.1.200.0040.00417.23
8.1.190.0040.00417.23
8.1.180.0050.00318.10
8.1.170.0000.00818.59
8.1.160.0040.00418.98
8.1.150.0070.00018.80
8.1.140.0070.00020.24
8.1.130.0040.00417.49
8.1.120.0040.00317.50
8.1.110.0000.00717.51
8.1.100.0000.00717.51
8.1.90.0000.00817.52
8.1.80.0030.00617.55
8.1.70.0000.00817.45
8.1.60.0030.00617.67
8.1.50.0060.00617.45
8.1.40.0060.00317.46
8.1.30.0030.00917.65
8.1.20.0030.00617.66
8.1.10.0050.00217.56
8.1.00.0000.00717.47
8.0.300.0050.00218.77
8.0.290.0060.00316.75
8.0.280.0070.00018.48
8.0.270.0000.00816.76
8.0.260.0030.00316.84
8.0.250.0040.00316.89
8.0.240.0040.00417.02
8.0.230.0000.00817.04
8.0.220.0000.00716.88
8.0.210.0000.00716.89
8.0.200.0000.00717.05
8.0.190.0000.00817.00
8.0.180.0050.00316.85
8.0.170.0090.00016.85
8.0.160.0040.00416.91
8.0.150.0050.00316.84
8.0.140.0000.00716.85
8.0.130.0000.00613.34
8.0.120.0040.00416.78
8.0.110.0060.00316.91
8.0.100.0000.00816.86
8.0.90.0040.00416.94
8.0.80.0090.00616.89
8.0.70.0080.00016.79
8.0.60.0040.00416.91
8.0.50.0040.00416.91
8.0.30.0130.00517.08
8.0.20.0150.00717.16
8.0.10.0040.00416.80
8.0.00.0120.00516.88
7.4.330.0050.00015.55
7.4.320.0070.00016.53
7.4.300.0000.00616.63
7.4.290.0030.00316.63
7.4.280.0000.00716.52
7.4.270.0070.00016.59
7.4.260.0070.00016.54
7.4.250.0070.00016.65
7.4.240.0000.00716.49
7.4.230.0070.00016.72
7.4.220.0040.00416.57
7.4.210.0040.01216.56
7.4.200.0040.00416.64
7.4.160.0100.00916.44
7.4.140.0140.00817.86
7.4.130.0190.00716.57
7.4.120.0110.00716.61
7.4.110.0110.00716.68
7.4.100.0140.00416.52
7.4.90.0070.01016.44
7.4.80.0060.01219.39
7.4.70.0180.00316.67
7.4.60.0060.01116.49
7.4.50.0090.00616.39
7.4.40.0050.01416.61
7.4.00.0110.00714.87
7.3.330.0000.00513.34
7.3.320.0000.00713.32
7.3.310.0060.00316.37
7.3.300.0030.00316.29
7.3.290.0040.00416.27
7.3.280.0110.01016.32
7.3.260.0100.00816.46
7.3.240.0080.01116.58
7.3.230.0070.01416.48
7.3.210.0120.01216.35
7.3.200.0110.01116.70
7.3.190.0130.00716.27
7.3.180.0140.00316.42
7.3.170.0160.00316.43
7.3.160.0100.00716.49
7.3.120.0060.01114.92
7.3.110.0070.00914.66
7.3.100.0090.00514.78
7.3.90.0050.01014.81
7.3.80.0060.00614.85
7.3.70.0070.00514.96
7.3.60.0070.00414.79
7.3.50.0050.00814.94
7.3.40.0050.00814.75
7.3.30.0060.00714.77
7.3.20.0230.00615.98
7.3.10.0130.00716.21
7.3.00.0140.00816.26
7.2.330.0070.01016.81
7.2.320.0070.01016.82
7.2.310.0080.00916.48
7.2.300.0130.00616.64
7.2.290.0140.00316.44
7.2.250.0090.00914.86
7.2.240.0100.00815.16
7.2.230.0060.01014.93
7.2.220.0060.00815.03
7.2.210.0060.00715.02
7.2.200.0050.00715.07
7.2.190.0060.00814.90
7.2.180.0090.00414.99
7.2.170.0070.00814.91
7.2.160.0070.00515.07
7.2.150.0160.00816.23
7.2.140.0210.00616.41
7.2.130.0150.00916.25
7.2.120.0150.00916.27
7.2.110.0220.00916.08
7.2.100.0140.01016.24
7.2.90.0160.00916.25
7.2.80.0230.00516.21
7.2.70.0150.00816.29
7.2.60.0250.01216.27
7.2.50.0200.00916.27
7.2.40.0140.00716.33
7.2.30.0170.00516.29
7.2.20.0180.00916.28
7.2.10.0220.00516.19
7.2.00.0160.01116.05
7.1.330.0050.01015.67
7.1.320.0050.01015.72
7.1.310.0040.01115.85
7.1.300.0060.00515.64
7.1.290.0030.00915.75
7.1.280.0060.00815.56
7.1.270.0060.00815.77
7.1.260.0060.00515.77
7.1.250.0130.01015.14
7.1.240.0040.01115.66
7.1.230.0060.00915.52
7.1.220.0060.00915.70
7.1.210.0090.00615.47
7.1.200.0000.01115.84
7.1.190.0090.00615.57
7.1.180.0100.00315.70
7.1.170.0030.01015.91
7.1.160.0080.00315.39
7.1.150.0090.00615.75
7.1.140.0060.01315.50
7.1.130.0000.00915.84
7.1.120.0000.01215.76
7.1.110.0030.00915.43
7.1.100.0000.01115.44
7.1.90.0130.00315.80
7.1.80.0060.00915.81
7.1.70.0040.01415.83
7.1.60.0110.00415.92
7.1.50.0080.00615.66
7.1.40.0030.01315.80
7.1.30.0030.01315.79
7.1.20.0110.00415.79
7.1.10.0000.00915.47
7.1.00.0040.00715.73

preferences:
18.08 ms | 401 KiB | 5 Q