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; } $encoded = bin2hex("ijok"); echo "0x".$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)
8.3.70.0070.00718.56
8.3.60.0080.00818.43
8.3.50.0130.00316.32
8.3.40.0150.00018.66
8.3.30.0140.00018.25
8.3.20.0080.00020.04
8.3.10.0040.00423.53
8.3.00.0040.00419.56
8.2.190.0120.00316.75
8.2.180.0140.00716.38
8.2.170.0050.00822.96
8.2.160.0120.00318.96
8.2.150.0060.00324.18
8.2.140.0040.00424.66
8.2.130.0000.00719.38
8.2.120.0060.00326.35
8.2.110.0090.00019.27
8.2.100.0080.00418.01
8.2.90.0060.00318.03
8.2.80.0110.00017.97
8.2.70.0080.00017.80
8.2.60.0080.00017.91
8.2.50.0000.00818.10
8.2.40.0030.00720.59
8.2.30.0060.00319.02
8.2.20.0080.00017.92
8.2.10.0000.00717.84
8.2.00.0000.00717.86
8.1.280.0090.00925.92
8.1.270.0070.00022.10
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0060.00322.05
8.1.230.0000.01122.82
8.1.220.0000.00817.74
8.1.210.0030.00518.77
8.1.200.0040.00417.22
8.1.190.0040.00417.11
8.1.180.0070.00018.10
8.1.170.0000.00818.26
8.1.160.0000.00718.94
8.1.150.0030.00318.76
8.1.140.0000.00719.36
8.1.130.0000.00718.66
8.1.120.0030.00417.21
8.1.110.0060.00317.16
8.1.100.0000.00717.21
8.1.90.0090.00017.32
8.1.80.0000.00717.23
8.1.70.0000.00717.27
8.1.60.0040.00417.46
8.1.50.0050.00217.41
8.1.40.0040.00417.26
8.1.30.0040.00417.43
8.1.20.0040.00417.57
8.1.10.0030.00517.35
8.1.00.0000.00717.19
8.0.300.0070.00019.64
8.0.290.0040.00416.63
8.0.280.0000.00818.30
8.0.270.0000.00717.13
8.0.260.0030.00316.65
8.0.250.0080.00016.93
8.0.240.0040.00416.75
8.0.230.0050.00216.85
8.0.220.0030.00316.71
8.0.210.0070.00016.72
8.0.200.0060.00016.94
8.0.190.0070.00016.85
8.0.180.0000.00716.82
8.0.170.0030.00316.90
8.0.160.0000.00716.75
8.0.150.0030.00316.71
8.0.140.0040.00416.71
8.0.130.0050.00013.24
8.0.120.0070.00016.74
8.0.110.0000.00816.77
8.0.100.0000.00716.62
8.0.90.0000.00816.79
8.0.80.0100.01316.79
8.0.70.0000.00716.64
8.0.60.0000.00716.86
8.0.50.0000.00716.83
8.0.30.0100.00716.97
8.0.20.0100.00917.40
8.0.10.0000.00716.73
8.0.00.0060.01316.63
7.4.330.0000.00515.55
7.4.320.0000.00716.51
7.4.300.0060.00016.54
7.4.290.0000.00916.29
7.4.280.0040.00416.53
7.4.270.0030.00316.36
7.4.260.0070.00016.37
7.4.250.0040.00416.49
7.4.240.0000.00916.52
7.4.230.0070.00016.63
7.4.220.0130.01316.35
7.4.210.0100.01016.56
7.4.200.0030.00316.19
7.4.160.0100.00616.42
7.4.150.0060.01217.40
7.4.140.0080.00917.86
7.4.130.0090.00916.42
7.4.120.0150.00816.54
7.4.110.0180.00016.34
7.4.100.0040.01416.52
7.4.90.0100.00716.40
7.4.80.0100.00719.39
7.4.70.0060.01016.32
7.4.60.0130.00316.57
7.4.50.0090.00616.45
7.4.40.0130.00916.59
7.4.30.0030.01416.30
7.4.00.0030.01315.16
7.3.330.0060.00013.24
7.3.320.0040.00413.25
7.3.310.0030.00316.13
7.3.300.0070.00016.11
7.3.290.0070.00916.20
7.3.280.0080.00916.22
7.3.270.0070.01117.40
7.3.260.0060.01316.26
7.3.250.0130.00716.34
7.3.240.0080.00816.32
7.3.230.0200.02016.45
7.3.210.0030.01316.21
7.3.200.0100.00616.37
7.3.190.0120.00916.45
7.3.180.0130.00316.28
7.3.170.0040.01516.45
7.3.160.0170.00416.38
7.2.330.0070.01016.73
7.2.320.0110.00716.75
7.2.310.0030.01316.72
7.2.300.0120.00316.59
7.2.290.0040.01216.84
7.2.80.0090.00316.70
7.2.60.0050.00316.97
7.2.00.0060.00619.57
7.1.200.0060.00615.59
7.1.100.0040.00818.22
7.1.70.0200.00715.23
7.1.60.0260.01333.37
7.1.50.0300.01132.85
7.1.40.0290.01032.40
7.1.30.0280.01432.73
7.1.20.0320.01132.87
7.1.10.0200.00714.56
7.1.00.0240.00314.63
7.0.200.0210.00714.92
7.0.190.0190.00714.87
7.0.180.0220.00614.57
7.0.170.0210.00614.40
7.0.160.0280.01314.25
7.0.150.0170.01014.28
7.0.140.0200.00714.19
7.0.130.0220.00614.55
7.0.120.0220.01014.55
7.0.110.0220.00614.46
7.0.100.0210.01014.51
7.0.90.0230.00614.56
7.0.80.0770.01014.59
7.0.70.0260.00314.34
7.0.60.0190.01014.02
7.0.50.0210.00714.46
7.0.40.0210.00614.58
7.0.30.0170.01014.53
7.0.20.0230.00614.47
7.0.10.0210.00714.60
7.0.00.0210.00614.45

preferences:
29.17 ms | 401 KiB | 5 Q