3v4l.org

run code in 300+ PHP versions simultaneously
<?php const INT_SIGNED = 1; const INT_LE = 2; function unpack_int32($str, $flags = 0) { $length = strlen($str); if ($length < 4) { return false; } else if ($length > 4) { $str = substr($str, 0, 4); } $format = ($flags & INT_LE) ? 'V' : 'N'; $result = current(unpack($format, $str)); $signBit = (bool) ($result & 0x80000000); $isSigned = (bool) ($flags & INT_SIGNED); $is32bit = PHP_INT_MAX < 0x80000000; if ($signBit && $isSigned && !$is32bit) { $result = 0xFFFFFFFF00000000 | $result; } else if ($signBit && !$isSigned && $is32bit) { $result = (($result & 0x7FFFFFFF) * 2) + ~$result + 1; } return $result; } var_dump(unpack_int32("\x81\x00\x00\x00", INT_SIGNED | INT_LE));

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)
8.3.60.0100.01018.20
8.3.50.0170.00222.05
8.3.40.0060.00818.72
8.3.30.0030.01018.89
8.3.20.0040.00420.34
8.3.10.0000.00823.61
8.3.00.0080.00022.44
8.2.180.0140.00716.38
8.2.170.0070.00722.96
8.2.160.0110.00422.08
8.2.150.0040.00424.18
8.2.140.0000.00824.66
8.2.130.0080.00026.16
8.2.120.0080.00019.36
8.2.110.0050.00522.12
8.2.100.0040.00717.78
8.2.90.0000.00819.08
8.2.80.0050.00317.97
8.2.70.0000.00917.38
8.2.60.0000.00917.80
8.2.50.0030.00618.07
8.2.40.0000.00718.22
8.2.30.0030.00618.13
8.2.20.0040.00417.60
8.2.10.0000.00717.81
8.2.00.0040.00417.74
8.1.280.0110.00425.92
8.1.270.0060.00321.95
8.1.260.0080.00026.35
8.1.250.0040.00428.09
8.1.240.0060.00323.82
8.1.230.0070.00319.14
8.1.220.0060.00317.77
8.1.210.0040.00418.77
8.1.200.0030.00617.35
8.1.190.0000.00817.53
8.1.180.0000.00818.10
8.1.170.0030.00518.40
8.1.160.0040.00421.93
8.1.150.0040.00418.63
8.1.140.0040.00417.40
8.1.130.0000.00717.74
8.1.120.0040.00817.48
8.1.110.0000.00717.49
8.1.100.0040.00317.50
8.1.90.0000.00717.41
8.1.80.0040.00417.48
8.1.70.0030.00317.42
8.1.60.0000.00917.47
8.1.50.0060.00317.38
8.1.40.0070.00017.52
8.1.30.0030.00517.55
8.1.20.0080.00017.54
8.1.10.0040.00417.55
8.1.00.0030.00617.30
8.0.300.0070.00018.77
8.0.290.0040.00417.18
8.0.280.0000.00718.44
8.0.270.0050.00317.24
8.0.260.0000.00616.76
8.0.250.0040.00416.97
8.0.240.0000.00716.99
8.0.230.0040.00416.93
8.0.220.0030.00316.91
8.0.210.0070.00016.90
8.0.200.0000.00616.94
8.0.190.0000.00716.95
8.0.180.0110.00016.97
8.0.170.0000.00816.94
8.0.160.0050.00216.89
8.0.150.0070.00016.84
8.0.140.0050.00216.84
8.0.130.0000.00713.25
8.0.120.0040.00416.89
8.0.110.0040.00416.89
8.0.100.0080.00016.88
8.0.90.0000.00716.94
8.0.80.0040.01116.85
8.0.70.0040.00416.85
8.0.60.0000.00816.70
8.0.50.0000.00716.86
8.0.30.0140.00817.16
8.0.20.0110.01017.40
8.0.10.0040.00416.89
8.0.00.0080.01016.80
7.4.330.0000.00515.20
7.4.320.0030.00316.59
7.4.300.0000.00616.45
7.4.290.0040.00416.62
7.4.280.0030.00316.41
7.4.270.0000.01116.64
7.4.260.0000.00716.54
7.4.250.0030.00516.46
7.4.240.0020.00616.59
7.4.230.0040.00416.34
7.4.220.0070.01116.55
7.4.210.0060.00916.57
7.4.200.0000.00716.25
7.4.190.0070.00016.74
7.4.160.0090.00616.52
7.4.150.0160.00317.40
7.4.140.0110.00817.86
7.4.130.0030.01716.58
7.4.120.0080.01116.58
7.4.110.0060.01016.40
7.4.100.0100.00716.46
7.4.90.0140.00316.53
7.4.80.0030.01516.31
7.4.70.0110.00616.64
7.4.60.0030.01316.32
7.4.50.0030.00616.46
7.4.40.0100.00322.77
7.4.30.0100.01016.45
7.4.00.0040.01414.66
7.3.330.0020.00213.16
7.3.320.0000.00513.35
7.3.310.0000.00716.19
7.3.300.0060.00016.33
7.3.290.0040.01116.42
7.3.280.0090.00916.31
7.3.270.0100.00717.40
7.3.260.0130.00316.44
7.3.250.0140.00916.66
7.3.240.0040.01216.34
7.3.230.0110.01416.47
7.3.210.0120.00416.31
7.3.200.0100.00619.39
7.3.190.0110.00716.56
7.3.180.0160.00016.64
7.3.170.0130.00316.56
7.3.160.0040.01216.61
7.3.120.0070.00714.88
7.3.10.0100.00316.50
7.3.00.0000.01216.54
7.2.330.0130.00416.71
7.2.320.0110.00616.84
7.2.310.0120.00616.68
7.2.300.0060.01016.86
7.2.290.0070.01716.76
7.2.130.0090.00316.91
7.2.120.0070.00716.88
7.2.110.0100.00616.88
7.2.100.0030.00716.89
7.2.90.0060.00616.85
7.2.80.0040.00417.04
7.2.70.0030.00916.98
7.2.60.0040.01016.85
7.2.50.0070.01116.98
7.2.40.0000.01216.63
7.2.30.0030.00816.97
7.2.20.0130.00616.81
7.2.10.0040.00716.95
7.2.00.0000.01117.02
7.1.250.0070.00016.03
7.1.240.0000.00715.70
7.1.230.0030.00615.70
7.1.220.0000.00815.96
7.1.210.0000.01015.80
7.1.200.0060.00715.82
7.1.190.0030.00715.61
7.1.180.0070.00715.68
7.1.170.0050.00515.61
7.1.160.0000.00715.86
7.1.150.0070.00315.78
7.1.140.0030.00915.94
7.1.130.0000.01015.71
7.1.120.0070.00315.92
7.1.110.0060.00916.02
7.1.100.0030.00917.01
7.1.90.0000.00815.70
7.1.80.0090.00615.88
7.1.70.0050.00316.57
7.1.60.0070.01017.56
7.1.50.0060.00716.25
7.1.40.0040.00415.57
7.1.30.0060.00615.74
7.1.20.0120.00015.86
7.1.10.0030.01315.82
7.1.00.0020.04519.16
7.0.330.0060.00615.41
7.0.320.0030.01215.47
7.0.310.0090.00615.61
7.0.300.0040.00815.41
7.0.290.0120.00315.50
7.0.280.0030.00615.44
7.0.270.0030.01015.13
7.0.260.0090.00615.52
7.0.250.0070.00615.41
7.0.240.0060.00615.49
7.0.230.0030.00615.44
7.0.220.0050.00215.41
7.0.210.0060.00615.30
7.0.200.0050.00615.95
7.0.190.0000.01015.61
7.0.180.0030.00815.21
7.0.170.0040.00815.13
7.0.160.0060.00915.62
7.0.150.0090.00315.43
7.0.140.0030.03818.66
7.0.130.0090.00315.52
7.0.120.0060.00915.44
7.0.110.0040.01115.44
7.0.100.0070.00715.54
7.0.90.0030.01015.34
7.0.80.0070.00715.33
7.0.70.0060.00615.30
7.0.60.0100.04217.72
7.0.50.0030.03216.61
7.0.40.0030.04916.87
7.0.30.0300.03716.90
7.0.20.0190.02716.59
7.0.10.0070.04216.74
7.0.00.0130.03216.87
5.6.380.0000.00814.08
5.6.370.0060.00614.04
5.6.360.0040.00714.34
5.6.350.0090.00014.62
5.6.340.0080.00014.31
5.6.330.0060.00614.28
5.6.320.0050.00314.55
5.6.310.0040.01214.32
5.6.300.0030.01414.46
5.6.290.0000.01514.23
5.6.280.0070.03717.78
5.6.270.0030.00614.63
5.6.260.0090.00414.48
5.6.250.0030.00714.39
5.6.240.0030.00314.54
5.6.230.0000.01114.56
5.6.220.0090.00614.57
5.6.210.0070.04217.20
5.6.200.0070.04316.15
5.6.190.0100.04317.41
5.6.180.0190.03417.53
5.6.170.0160.03017.48
5.6.160.0090.04217.42
5.6.150.0030.02316.16
5.6.140.0070.04316.33
5.6.130.0070.04916.32
5.6.120.0070.04317.76
5.6.110.0030.04717.70
5.6.100.0030.03617.71
5.6.90.0070.03717.75
5.6.80.0050.02817.15
5.6.70.0060.00614.11
5.6.60.0070.00714.07
5.6.50.0070.00014.14
5.6.40.0000.00714.10
5.6.30.0070.00714.33
5.6.20.0030.00814.15
5.6.10.0100.00314.15
5.6.00.0080.00014.21
5.5.380.0030.00611.15
5.5.370.0070.00311.07
5.5.360.0110.00010.92
5.5.350.0120.02015.78
5.5.340.0060.03714.77
5.5.330.0090.04115.55
5.5.320.0030.04615.75
5.5.310.0100.02615.71
5.5.300.0080.03714.60
5.5.290.0070.04314.53
5.5.280.0100.04115.96
5.5.270.0030.04816.01
5.5.260.0030.04315.78
5.5.250.0070.03015.78
5.5.240.0020.02015.67
5.5.230.0030.00611.15
5.5.220.0060.00611.07
5.5.210.0030.00811.02
5.5.200.0060.00310.87
5.5.190.0000.01111.02
5.5.180.0000.00911.32
5.5.170.0030.00711.16
5.5.160.0070.00710.75
5.5.150.0000.00811.24
5.5.140.0050.00211.14
5.5.130.0060.00610.96
5.5.120.0000.01011.05
5.5.110.0070.00310.91
5.5.100.0070.00711.22
5.5.90.0030.00910.82
5.5.80.0040.00811.20
5.5.70.0000.00710.91
5.5.60.0030.00610.90
5.5.50.0030.00710.96
5.5.40.0070.00411.14
5.5.30.0040.00710.86
5.5.20.0000.01110.91
5.5.10.0030.00611.17
5.5.00.0000.01110.91
5.4.450.0150.02315.19
5.4.440.0220.03715.21
5.4.430.0130.04115.04
5.4.420.0270.01815.18
5.4.410.0220.02315.33
5.4.400.0180.02514.96
5.4.390.0150.02515.30
5.4.380.0190.02015.03
5.4.370.0180.03015.12
5.4.360.0170.04415.00
5.4.350.0130.04015.20
5.4.340.0160.03815.18
5.4.330.0000.01011.03
5.4.320.0200.03715.04
5.4.310.0170.04015.19
5.4.300.0150.02715.04
5.4.290.0200.03615.10
5.4.280.0170.02315.09
5.4.270.0150.03014.99
5.4.260.0180.02415.29
5.4.250.0150.03715.08
5.4.240.0180.03815.07
5.4.230.0210.03314.84
5.4.220.0150.02614.98
5.4.210.0170.03615.03
5.4.200.0170.03015.14
5.4.190.0150.03015.15
5.4.180.0180.02315.17
5.4.170.0160.02114.85
5.4.160.0170.02015.03
5.4.150.0210.03614.92
5.4.140.0230.02513.76
5.4.130.0200.03613.56
5.4.120.0120.02313.77
5.4.110.0170.03513.65
5.4.100.0120.02413.84
5.4.90.0130.01513.62
5.4.80.0070.02513.76
5.4.70.0170.02013.81
5.4.60.0130.02013.88
5.4.50.0090.02313.67
5.4.40.0140.01713.77
5.4.30.0100.02313.86
5.4.20.0200.01713.69
5.4.10.0100.02213.61
5.4.00.0180.01413.21
5.3.290.0240.03112.66
5.3.280.0150.04112.56
5.3.270.0100.02712.46
5.3.260.0110.02312.63
5.3.250.0270.03212.73
5.3.240.0170.03812.40
5.3.230.0150.03412.54
5.3.220.0200.03312.42
5.3.210.0180.03712.47
5.3.200.0140.02212.48
5.3.190.0150.02112.48
5.3.180.0110.02012.60
5.3.170.0080.02312.53
5.3.160.0200.01712.44
5.3.150.0110.02012.53
5.3.140.0110.01812.50
5.3.130.0160.02212.39
5.3.120.0100.02312.50
5.3.110.0150.01712.36
5.3.100.0070.02312.32
5.3.90.0130.01712.33
5.3.80.0100.02012.12
5.3.70.0100.02512.34
5.3.60.0170.01712.34
5.3.50.0130.02212.17
5.3.40.0130.02012.03
5.3.30.0100.01812.15
5.3.20.0100.02012.20
5.3.10.0100.01911.91
5.3.00.0130.02011.96
5.2.170.0080.01711.38
5.2.160.0080.02011.38
5.2.150.0130.01311.38
5.2.140.0080.01611.38
5.2.130.0160.01111.38
5.2.120.0100.01511.38
5.2.110.0100.01711.38
5.2.100.0090.01711.38
5.2.90.0080.02511.38
5.2.80.0080.01911.38
5.2.70.0120.01311.38
5.2.60.0110.01511.38
5.2.50.0100.01811.38
5.2.40.0070.02811.38
5.2.30.0090.01611.38
5.2.20.0100.01311.38
5.2.10.0080.01511.38
5.2.00.0050.01811.38
5.1.60.0150.00811.38
5.1.50.0100.01211.38
5.1.40.0070.02211.38
5.1.30.0130.02211.38
5.1.20.0120.01911.38
5.1.10.0070.01611.38
5.1.00.0090.01311.38
5.0.50.0120.01411.38
5.0.40.0030.01711.38
5.0.30.0100.03011.38
5.0.20.0070.02211.38
5.0.10.0100.01811.38
5.0.00.0080.02211.38
4.4.90.0030.00811.38
4.4.80.0020.01211.38
4.4.70.0070.00811.38
4.4.60.0050.00811.38
4.4.50.0030.01011.38
4.4.40.0050.01411.38
4.4.30.0040.01011.38
4.4.20.0050.01311.38
4.4.10.0030.01111.38
4.4.00.0100.01611.38
4.3.110.0080.01711.38
4.3.100.0050.01511.38
4.3.90.0070.01511.38
4.3.80.0090.01811.38
4.3.70.0070.01511.38
4.3.60.0050.01511.38
4.3.50.0110.01111.38
4.3.40.0080.02511.38
4.3.30.0050.01811.38
4.3.20.0060.01011.38
4.3.10.0030.02211.38
4.3.00.0030.01711.38

preferences:
50.68 ms | 400 KiB | 5 Q