3v4l.org

run code in 300+ PHP versions simultaneously
<?php print_r(unpack("A", pack("A", "hello world"))); print_r(unpack("A*", pack("A*", "hello world"))); echo '"'.pack("A9", "hello").'"'; echo "\n"; print_r(unpack("C", pack("C", -127))); print_r(unpack("C", pack("C", 127))); print_r(unpack("C", pack("C", 255))); print_r(unpack("C", pack("C", -129))); print_r(unpack("H", pack("H", 0x04))); print_r(unpack("I", pack("I", 65534))); print_r(unpack("I", pack("I", 0))); print_r(unpack("I", pack("I", -1000))); print_r(unpack("I", pack("I", -64434))); print_r(unpack("I", pack("I", 4294967296))); print_r(unpack("I", pack("I", -4294967296))); print_r(unpack("L", pack("L", 65534))); print_r(unpack("L", pack("L", 0))); print_r(unpack("L", pack("L", 2147483650))); print_r(unpack("L", pack("L", 4294967295))); print_r(unpack("L", pack("L", -2147483648))); print_r(unpack("N", pack("N", 65534))); print_r(unpack("N", pack("N", 0))); print_r(unpack("N", pack("N", 2147483650))); print_r(unpack("N", pack("N", 4294967296))); print_r(unpack("N", pack("N", -2147483648))); print_r(unpack("N", pack("N", -30000))); print_r(unpack("S", pack("S", 65534))); print_r(unpack("S", pack("S", 65537))); print_r(unpack("S", pack("S", 0))); print_r(unpack("S", pack("S", -1000))); print_r(unpack("S", pack("S", -64434))); print_r(unpack("S", pack("S", -65535))); print_r(unpack("V", pack("V", 65534))); print_r(unpack("V", pack("V", 0))); print_r(unpack("V", pack("V", 2147483650))); print_r(unpack("V", pack("V", 4294967296))); print_r(unpack("V", pack("V", -2147483648))); print_r(unpack("a", pack("a", "hello world"))); print_r(unpack("a*", pack("a*", "hello world"))); print_r(unpack("c", pack("c", -127))); print_r(unpack("c", pack("c", 127))); print_r(unpack("c", pack("c", 255))); print_r(unpack("c", pack("c", -129))); print_r(unpack("h", pack("h", 3000000))); print_r(unpack("i", pack("i", 65534))); print_r(unpack("i", pack("i", 0))); print_r(unpack("i", pack("i", -1000))); print_r(unpack("i", pack("i", -64434))); print_r(unpack("i", pack("i", -65535))); print_r(unpack("i", pack("i", -2147483647))); print_r(unpack("l", pack("l", 65534))); print_r(unpack("l", pack("l", 0))); print_r(unpack("l", pack("l", 2147483650))); print_r(unpack("l", pack("l", 4294967296))); print_r(unpack("l", pack("l", -2147483648))); print_r(unpack("n", pack("n", 65534))); print_r(unpack("n", pack("n", 65537))); print_r(unpack("n", pack("n", 0))); print_r(unpack("n", pack("n", -1000))); print_r(unpack("n", pack("n", -64434))); print_r(unpack("n", pack("n", -65535))); print_r(unpack("s", pack("s", 32767))); print_r(unpack("s", pack("s", 65535))); print_r(unpack("s", pack("s", 0))); print_r(unpack("s", pack("s", -1000))); print_r(unpack("s", pack("s", -64434))); print_r(unpack("s", pack("s", -65535))); print_r(unpack("v", pack("v", 65534))); print_r(unpack("v", pack("v", 65537))); print_r(unpack("v", pack("v", 0))); print_r(unpack("v", pack("v", -1000))); print_r(unpack("v", pack("v", -64434))); print_r(unpack("v", pack("v", -65535)));

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)
8.3.60.0130.00318.30
8.3.50.0060.01021.86
8.3.40.0150.00018.79
8.3.30.0110.00319.22
8.3.20.0040.00420.29
8.3.10.0080.00022.14
8.3.00.0090.00022.18
8.2.180.0030.01316.38
8.2.170.0180.00422.96
8.2.160.0100.00319.36
8.2.150.0030.00524.18
8.2.140.0050.00324.66
8.2.130.0110.00426.16
8.2.120.0040.00420.97
8.2.110.0060.00320.54
8.2.100.0090.00317.72
8.2.90.0040.00419.22
8.2.80.0050.00317.97
8.2.70.0030.00617.75
8.2.60.0000.00818.03
8.2.50.0030.00618.07
8.2.40.0000.00818.05
8.2.30.0070.00018.00
8.2.20.0040.00417.77
8.2.10.0000.00817.62
8.2.00.0040.00417.62
8.1.280.0040.01125.92
8.1.270.0060.00322.18
8.1.260.0040.00426.35
8.1.250.0000.00828.09
8.1.240.0060.00322.21
8.1.230.0040.00822.28
8.1.220.0070.00317.76
8.1.210.0030.00518.77
8.1.200.0060.00317.48
8.1.190.0000.00817.66
8.1.180.0030.00618.73
8.1.170.0030.00618.57
8.1.160.0000.00922.22
8.1.150.0050.00218.67
8.1.140.0030.00617.48
8.1.130.0030.00317.80
8.1.120.0050.00317.43
8.1.110.0040.00417.54
8.1.100.0000.00917.52
8.1.90.0040.00417.46
8.1.80.0030.00417.58
8.1.70.0070.00017.42
8.1.60.0090.00017.66
8.1.50.0080.00017.43
8.1.40.0050.00317.61
8.1.30.0080.00017.67
8.1.20.0040.00417.73
8.1.10.0050.00317.54
8.1.00.0030.00517.52
8.0.300.0040.00418.77
8.0.290.0050.00217.18
8.0.280.0030.00318.50
8.0.270.0000.00717.22
8.0.260.0030.00318.51
8.0.250.0030.00316.87
8.0.240.0040.00417.03
8.0.230.0040.00417.07
8.0.220.0000.00717.00
8.0.210.0070.00016.99
8.0.200.0070.00017.00
8.0.190.0050.00317.05
8.0.180.0000.00816.87
8.0.170.0000.00816.85
8.0.160.0050.00316.97
8.0.150.0000.00716.80
8.0.140.0000.00816.91
8.0.130.0030.00313.47
8.0.120.0080.00016.81
8.0.110.0080.00016.88
8.0.100.0000.00816.92
8.0.90.0050.00316.97
8.0.80.0060.01316.91
8.0.70.0000.00716.75
8.0.60.0000.00816.88
8.0.50.0000.00816.93
8.0.30.0110.00917.18
8.0.20.0140.00817.40
8.0.10.0040.00416.96
8.0.00.0130.00516.77
7.4.330.0050.00015.00
7.4.320.0030.00316.64
7.4.300.0000.00616.50
7.4.290.0030.00316.48
7.4.280.0000.00716.45
7.4.270.0040.00316.40
7.4.260.0020.00516.47
7.4.250.0000.00716.57
7.4.240.0050.00316.54
7.4.230.0030.00316.68
7.4.220.0100.01716.53
7.4.210.0080.01216.57
7.4.200.0000.00816.55
7.4.190.0000.00816.64
7.4.160.0100.01016.38
7.4.150.0120.00617.40
7.4.140.0100.01117.86
7.4.130.0060.01316.45
7.4.120.0120.00516.60
7.4.110.0120.00716.47
7.4.100.0060.01616.59
7.4.90.0140.00316.61
7.4.80.0120.00619.39
7.4.70.0090.01616.56
7.4.60.0100.00716.43
7.4.50.0000.01116.17
7.4.40.0060.01222.77
7.4.30.0090.00916.31
7.4.10.0130.00614.81
7.4.00.0090.00914.97
7.3.330.0000.00513.18
7.3.320.0000.00513.24
7.3.310.0030.00316.27
7.3.300.0040.00416.29
7.3.290.0030.01716.38
7.3.280.0100.00616.31
7.3.270.0070.01117.40
7.3.260.0130.00516.38
7.3.250.0130.00416.44
7.3.240.0120.00616.64
7.3.230.0070.01316.39
7.3.210.0100.00716.50
7.3.200.0130.00919.39
7.3.190.0100.01016.65
7.3.180.0140.00716.67
7.3.170.0070.01116.32
7.3.160.0190.00316.36
7.3.130.0100.01014.84
7.3.120.0100.00614.84
7.3.110.0060.01214.95
7.3.100.0090.00514.94
7.3.90.0030.00914.82
7.3.80.0040.01214.74
7.3.70.0040.01114.79
7.3.60.0040.01014.82
7.3.50.0090.00514.77
7.3.40.0090.00515.02
7.3.30.0030.01014.85
7.3.20.0030.01216.63
7.3.10.0040.01016.56
7.3.00.0070.00816.73
7.2.330.0140.00416.59
7.2.320.0170.00316.77
7.2.310.0290.03416.50
7.2.300.0110.00716.58
7.2.290.0130.00316.54
7.2.260.0030.01615.13
7.2.250.0030.01314.98
7.2.240.0040.01314.88
7.2.230.0050.01114.87
7.2.220.0040.01215.27
7.2.210.0050.01015.06
7.2.200.0090.00315.15
7.2.190.0050.01115.07
7.2.180.0090.00414.79
7.2.170.0080.00715.14
7.2.160.0110.00715.18
7.2.150.0030.01216.85
7.2.140.0110.00416.76
7.2.130.0040.00816.86
7.2.120.0070.00816.89
7.2.110.0010.00916.79
7.2.100.0030.00816.96
7.2.90.0080.01116.78
7.2.80.0130.00316.83
7.2.70.0050.00716.94
7.2.60.0110.00516.90
7.2.50.0120.00316.73
7.2.40.0070.00516.63
7.2.30.0060.00716.83
7.2.20.0070.00816.84
7.2.10.0050.00816.80
7.2.00.0050.01017.84
7.1.330.0090.00715.67
7.1.320.0090.00715.63
7.1.310.0100.00615.57
7.1.300.0090.00615.42
7.1.290.0070.00715.81
7.1.280.0040.01115.53
7.1.270.0040.00815.64
7.1.260.0070.00715.53
7.1.250.0050.00615.73
7.1.240.0030.01015.74
7.1.230.0030.01015.67
7.1.220.0000.01315.64
7.1.210.0030.00715.59
7.1.200.0030.00915.70
7.1.190.0040.00715.75
7.1.180.0110.00415.76
7.1.170.0060.00915.41
7.1.160.0030.00615.47
7.1.150.0070.00715.89
7.1.140.0030.01015.80
7.1.130.0060.00315.71
7.1.120.0070.01015.65
7.1.110.0030.00615.65
7.1.100.0030.01016.79
7.1.90.0000.01115.72
7.1.80.0130.00315.47
7.1.70.0110.00716.39
7.1.60.0140.00817.61
7.1.50.0070.00716.33
7.1.40.0040.00415.84
7.1.30.0000.01615.73
7.1.20.0040.00415.63
7.1.10.0030.00915.70
7.1.00.0020.04119.03
7.0.330.0070.00315.36
7.0.320.0040.01115.34
7.0.310.0060.00615.31
7.0.300.0040.01115.27
7.0.290.0000.01215.34
7.0.280.0060.01015.34
7.0.270.0090.00615.49
7.0.260.0070.01015.22
7.0.250.0060.01015.38
7.0.240.0030.00915.52
7.0.230.0060.00515.34
7.0.220.0030.01315.28
7.0.210.0140.00415.43
7.0.200.0060.00515.71
7.0.190.0060.00615.51
7.0.180.0140.00015.30
7.0.170.0040.01115.14
7.0.160.0070.00415.43
7.0.150.0060.00615.34
7.0.140.0020.04318.58
7.0.130.0030.01415.37
7.0.120.0090.00615.52
7.0.110.0070.00715.33
7.0.100.0230.04517.73
7.0.90.0150.03317.66
7.0.80.0090.02717.65
7.0.70.0070.02817.71
7.0.60.0120.04217.66
7.0.50.0120.04417.65
7.0.40.0050.04416.67
7.0.30.0080.04516.62
7.0.20.0120.02716.82
7.0.10.0100.04316.76
7.0.00.0070.04516.77
5.6.400.0060.00814.48
5.6.390.0070.01114.37
5.6.380.0090.00614.54
5.6.370.0070.00713.82
5.6.360.0080.00814.45
5.6.350.0060.00314.65
5.6.340.0060.00913.99
5.6.330.0100.00314.45
5.6.320.0040.01414.16
5.6.310.0060.00913.99
5.6.300.0080.00814.46
5.6.290.0050.00514.38
5.6.280.0070.04017.60
5.6.270.0030.00914.61
5.6.260.0070.00714.68
5.6.250.0080.04317.36
5.6.240.0070.04317.45
5.6.230.0020.05217.50
5.6.220.0070.03317.41
5.6.210.0130.04517.60
5.6.200.0090.04217.66
5.6.190.0080.04317.68
5.6.180.0130.03617.79
5.6.170.0050.04017.64
5.6.160.0100.04517.74
5.6.150.0090.03917.64
5.6.140.0100.04117.61
5.6.130.0090.03117.66
5.6.120.0170.03817.85
5.6.110.0080.04017.71
5.6.100.0080.04317.71
5.6.90.0080.04317.75
5.6.80.0110.04017.32
5.6.70.0110.03117.35
5.6.60.0120.04017.23
5.6.50.0090.02317.32
5.6.40.0070.03817.33
5.6.30.0130.02517.41
5.6.20.0080.04017.22
5.6.10.0080.04617.33
5.6.00.0060.04617.18
5.5.380.0100.04217.41
5.5.370.0100.04317.36
5.5.360.0100.03017.42
5.5.350.0050.02717.29
5.5.340.0050.04517.53
5.5.330.0100.03517.60
5.5.320.0050.03117.59
5.5.310.0050.04317.51
5.5.300.0100.03617.48
5.5.290.0030.03317.56
5.5.280.0040.02917.60
5.5.270.0100.04417.69
5.5.260.0130.04017.51
5.5.250.0080.03817.54
5.5.240.0070.04317.21
5.5.230.0080.03017.14
5.5.220.0110.04217.17
5.5.210.0110.04417.05
5.5.200.0080.03917.27
5.5.190.0100.04217.28
5.5.180.0070.04017.30
5.5.170.0040.01114.06
5.5.160.0150.04017.08
5.5.150.0030.04617.06
5.5.140.0050.03217.16
5.5.130.0070.03217.21
5.5.120.0070.04317.37
5.5.110.0030.04117.19
5.5.100.0120.04217.10
5.5.90.0050.04517.08
5.5.80.0080.04316.98
5.5.70.0130.03317.27
5.5.60.0050.04217.27
5.5.50.0020.04317.17
5.5.40.0100.03817.00
5.5.30.0030.03017.09
5.5.20.0050.04517.10
5.5.10.0090.02717.06
5.5.00.0030.03116.98
5.4.450.0030.04715.22
5.4.440.0070.03315.03
5.4.430.0120.03515.28
5.4.420.0060.04114.96
5.4.410.0100.03715.25
5.4.400.0080.03914.95
5.4.390.0070.04615.03
5.4.380.0070.03914.80
5.4.370.0080.03715.14
5.4.360.0020.02714.96
5.4.350.0040.04215.08
5.4.340.0120.02215.07
5.4.330.0040.01110.69
5.4.320.0140.03814.98
5.4.310.0030.04315.04
5.4.300.0120.03515.02
5.4.290.0080.03815.08
5.4.280.0100.03715.08
5.4.270.0060.02815.00
5.4.260.0070.03215.09
5.4.250.0070.04215.04
5.4.240.0050.04115.06
5.4.230.0030.02614.90
5.4.220.0030.03215.07
5.4.210.0100.04014.80
5.4.200.0040.04215.01
5.4.190.0030.03715.17
5.4.180.0100.04314.84
5.4.170.0030.04415.01
5.4.160.0050.03015.01
5.4.150.0030.04415.12
5.4.140.0080.03813.65
5.4.130.0080.03213.74
5.4.120.0050.03813.65
5.4.110.0110.03513.55
5.4.100.0070.04113.70
5.4.90.0030.03313.67
5.4.80.0070.03713.69
5.4.70.0100.03013.51
5.4.60.0100.02213.80
5.4.50.0020.03013.68
5.4.40.0070.02313.56
5.4.30.0100.04013.78
5.4.20.0100.03213.80
5.4.10.0020.04013.76
5.4.00.0080.03813.46
5.3.290.0050.04512.72
5.3.280.0080.04212.57
5.3.270.0080.03512.54
5.3.260.0090.04012.66
5.3.250.0120.03012.68
5.3.240.0070.03912.54
5.3.230.0050.04012.44
5.3.220.0020.04112.57
5.3.210.0050.02712.52
5.3.200.0100.03412.53
5.3.190.0100.03712.61
5.3.180.0130.03012.57
5.3.170.0110.03512.69
5.3.160.0060.02612.71
5.3.150.0070.03712.67
5.3.140.0070.03812.48
5.3.130.0080.03712.56
5.3.120.0080.04312.55
5.3.110.0060.04112.62
5.3.100.0070.02512.41
5.3.90.0070.03312.31
5.3.80.0070.03812.14
5.3.70.0030.04212.25
5.3.60.0090.02512.35
5.3.50.0050.04012.04
5.3.40.0080.02712.29
5.3.30.0120.03312.25
5.3.20.0040.02612.10
5.3.10.0080.03212.03
5.3.00.0150.02511.99

preferences:
36.44 ms | 401 KiB | 5 Q