3v4l.org

run code in 300+ PHP versions simultaneously
<?php function XXhex2bin($h) { if (!is_string($h)) return null; $r=''; for ($a=0; $a<strlen($h); $a+=2) { $r.=chr(hexdec($h{$a}.$h{($a+1)})); } return $r; } $encoded = bin2hex('ijok'); echo hex2bin($encoded); ?>

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)
8.3.60.0030.01218.68
8.3.50.0040.01116.28
8.3.40.0150.00618.58
8.3.30.0070.00718.39
8.3.20.0000.00820.16
8.3.10.0040.00423.53
8.3.00.0080.00019.53
8.2.180.0140.00716.49
8.2.170.0100.00622.96
8.2.160.0070.00719.09
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0040.00419.44
8.2.120.0040.00426.35
8.2.110.0040.00422.10
8.2.100.0080.00417.78
8.2.90.0080.00018.97
8.2.80.0040.00417.97
8.2.70.0040.00417.50
8.2.60.0030.00617.80
8.2.50.0000.00818.10
8.2.40.0000.00820.59
8.2.30.0070.00420.88
8.2.20.0040.00417.84
8.2.10.0000.00717.92
8.2.00.0040.00317.84
8.1.280.0100.01025.92
8.1.270.0050.00323.99
8.1.260.0030.00526.35
8.1.250.0040.00428.09
8.1.240.0060.00323.97
8.1.230.0070.00421.98
8.1.220.0000.00817.74
8.1.210.0000.00818.77
8.1.200.0040.00517.23
8.1.190.0000.00817.10
8.1.180.0060.00318.10
8.1.170.0040.00418.65
8.1.160.0050.00218.94
8.1.150.0080.00018.79
8.1.140.0040.00419.43
8.1.130.0070.00418.72
8.1.120.0040.00417.30
8.1.110.0040.00417.30
8.1.100.0050.00317.36
8.1.90.0000.00717.32
8.1.80.0030.00317.36
8.1.70.0000.00717.28
8.1.60.0030.00617.34
8.1.50.0050.00317.39
8.1.40.0040.00417.34
8.1.30.0000.00817.41
8.1.20.0090.00017.35
8.1.10.0040.00417.38
8.1.00.0030.00617.28
8.0.300.0070.00018.77
8.0.290.0030.00516.63
8.0.280.0000.00718.18
8.0.270.0000.00717.11
8.0.260.0030.00316.79
8.0.250.0000.00716.84
8.0.240.0100.00016.96
8.0.230.0070.00016.91
8.0.220.0070.00016.71
8.0.210.0050.00216.88
8.0.200.0060.00016.95
8.0.190.0030.00516.91
8.0.180.0040.00416.70
8.0.170.0070.00016.80
8.0.160.0040.00416.82
8.0.150.0060.00316.78
8.0.140.0040.00416.76
8.0.130.0030.00313.29
8.0.120.0040.00416.79
8.0.110.0050.00316.83
8.0.100.0000.00816.71
8.0.90.0040.00416.83
8.0.80.0090.00916.79
8.0.70.0000.00816.83
8.0.60.0040.00416.73
8.0.50.0000.00716.80
8.0.30.0110.00816.85
8.0.20.0080.01017.40
8.0.10.0070.00016.92
8.0.00.0110.00716.41
7.4.330.0000.00515.55
7.4.320.0050.00216.56
7.4.300.0000.00616.57
7.4.290.0080.00316.37
7.4.280.0040.00416.54
7.4.270.0030.00316.45
7.4.260.0000.00716.54
7.4.250.0000.00716.33
7.4.240.0020.00516.47
7.4.230.0030.00316.33
7.4.220.0130.00616.62
7.4.210.0150.00016.63
7.4.200.0000.00716.58
7.4.160.0090.00616.37
7.4.150.0130.00617.40
7.4.140.0160.00317.86
7.4.130.0070.01016.63
7.4.120.0100.00916.43
7.4.110.0080.00816.55
7.4.100.0090.01216.70
7.4.90.0080.00816.49
7.4.80.0090.01219.39
7.4.70.0030.01316.47
7.4.60.0100.00616.57
7.4.50.0160.00016.39
7.4.40.0140.00316.68
7.4.30.0130.00316.45
7.4.10.0040.01515.10
7.4.00.0070.00715.00
7.3.330.0000.00513.17
7.3.320.0030.00313.20
7.3.310.0080.00016.21
7.3.300.0000.00616.14
7.3.290.0060.00816.18
7.3.280.0060.00916.20
7.3.270.0030.01317.40
7.3.260.0120.00816.19
7.3.250.0100.00816.28
7.3.240.0100.00816.47
7.3.230.0110.01116.30
7.3.210.0100.00716.39
7.3.200.0100.01316.50
7.3.190.0140.00716.46
7.3.180.0090.00916.39
7.3.170.0110.00716.30
7.3.160.0060.01216.24
7.3.130.0070.01314.98
7.3.120.0050.01114.78
7.3.110.0120.00814.66
7.3.100.0080.00614.76
7.3.90.0100.00514.79
7.3.80.0030.01314.60
7.3.70.0080.00514.76
7.3.60.0060.00914.68
7.3.50.0040.00814.52
7.3.40.0080.00614.51
7.3.30.0030.00814.81
7.3.20.0070.00816.56
7.3.10.0040.01016.70
7.3.00.0020.01416.46
7.2.330.0070.01016.71
7.2.320.0080.01216.73
7.2.310.0060.01216.58
7.2.300.0040.01216.56
7.2.290.0070.01016.44
7.2.260.0120.00715.09
7.2.250.0080.01014.69
7.2.240.0090.00914.93
7.2.230.0070.00615.17
7.2.220.0050.01214.79
7.2.210.0100.00515.06
7.2.200.0050.01014.94
7.2.190.0080.00514.90
7.2.180.0000.01114.78
7.2.170.0050.01014.96
7.2.160.0070.01014.94
7.2.150.0030.01616.97
7.2.140.0070.01016.90
7.2.130.0060.00316.54
7.2.120.0090.00417.03
7.2.110.0030.01316.84
7.2.100.0060.00916.59
7.2.90.0030.01017.01
7.2.80.0070.01316.77
7.2.70.0100.01016.74
7.2.60.0070.01016.69
7.2.50.0030.01216.93
7.2.40.0070.00716.65
7.2.30.0070.00716.74
7.2.20.0110.00416.63
7.2.10.0060.01516.75
7.2.00.0080.00318.20
7.1.330.0050.00815.63
7.1.320.0050.00715.53
7.1.310.0080.00615.65
7.1.300.0060.00715.72
7.1.290.0000.01115.81
7.1.280.0040.00815.88
7.1.270.0030.01015.74
7.1.260.0040.01315.71
7.1.250.0000.01115.82
7.1.240.0000.01915.77
7.1.230.0030.01415.66
7.1.220.0100.00715.70
7.1.210.0000.01615.85
7.1.200.0080.00615.60
7.1.190.0120.00615.62
7.1.180.0000.01015.79
7.1.170.0090.00015.68
7.1.160.0000.01115.63
7.1.150.0060.01015.57
7.1.140.0140.00715.68
7.1.130.0090.00015.55
7.1.120.0030.01015.55
7.1.110.0100.00315.90
7.1.100.0050.00816.56
7.1.90.0000.00915.66
7.1.80.0130.00015.78
7.1.70.0090.00216.19
7.1.60.0100.00825.47
7.1.50.0110.00925.26
7.1.40.0140.00625.02
7.1.30.0100.01024.95
7.1.20.0140.00625.06
7.1.10.0120.00216.10
7.1.00.0070.00616.21
7.0.330.0000.00814.97
7.0.320.0060.01215.28
7.0.310.0110.00615.18
7.0.300.0040.00815.14
7.0.290.0060.00315.53
7.0.280.0040.01115.34
7.0.270.0000.01015.22
7.0.260.0080.00815.23
7.0.250.0060.00915.54
7.0.240.0100.00315.23
7.0.230.0000.01015.18
7.0.220.0040.00915.20
7.0.210.0030.00615.19
7.0.200.0030.00916.09
7.0.190.0080.00316.00
7.0.180.0060.00615.76
7.0.170.0050.00815.78
7.0.160.0050.00515.68
7.0.150.0050.00815.76
7.0.140.0080.00315.91
7.0.130.0030.00915.85
7.0.120.0060.00415.97
7.0.110.0060.00615.78
7.0.100.0050.00615.80
7.0.90.0070.00415.81
7.0.80.0060.00515.56
7.0.70.0030.00915.89
7.0.60.0060.00615.72
7.0.50.0080.00515.77
7.0.40.0070.01014.55
7.0.30.0050.01014.95
7.0.20.0020.01114.94
7.0.10.0020.01014.99
7.0.00.0060.00514.87
5.6.400.0070.01314.21
5.6.390.0070.00714.35
5.6.380.0000.01014.13
5.6.370.0090.00613.93
5.6.360.0030.00714.32
5.6.350.0000.01014.21
5.6.340.0090.00614.50
5.6.330.0080.00814.19
5.6.320.0000.01013.99
5.6.310.0030.01213.84
5.6.300.0110.00014.05
5.6.290.0060.00314.38
5.6.280.0100.00714.42
5.6.270.0030.01414.23
5.6.260.0000.01114.07
5.6.250.0060.00614.51
5.6.240.0070.00714.47
5.6.230.0070.00714.06
5.6.220.0080.00614.14
5.6.210.0100.00713.88
5.6.200.0030.01014.31
5.6.190.0050.00314.17
5.6.180.0040.00814.07
5.6.170.0000.00814.00
5.6.160.0100.00714.25
5.6.150.0090.00314.09
5.6.140.0030.01013.89
5.6.130.0030.01314.25
5.6.120.0030.01414.54
5.6.110.0110.00614.24
5.6.100.0040.01314.16
5.6.90.0130.00014.32
5.6.80.0030.01313.86
5.6.70.0040.01214.33
5.6.60.0040.01214.02
5.6.50.0030.01514.10
5.6.40.0030.01314.09
5.6.30.0070.00714.20
5.6.20.0090.00914.28
5.6.10.0030.01113.96
5.6.00.0030.01214.17

preferences:
55.79 ms | 401 KiB | 5 Q