3v4l.org

run code in 500+ PHP versions simultaneously
<?php $number = 0x12A; $string = '0x12A'; // direct decoding echo hexdec($string); // the reverse way $newString = '0x'.dechex($number); ?>

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)
8.5.90.0100.00916.78
8.5.80.0050.00516.87
8.5.70.0080.00918.60
8.5.60.0100.00816.79
8.5.50.0110.00616.48
8.5.30.0090.00819.65
8.5.20.0110.00820.24
8.5.10.0100.00816.77
8.5.00.0140.00819.81
8.4.240.0130.00719.40
8.4.230.0090.00519.47
8.4.220.0130.00719.55
8.4.210.0040.00521.27
8.4.180.0120.01019.64
8.4.170.0120.00923.81
8.4.160.0110.01023.75
8.4.150.0070.00516.85
8.4.140.0110.01117.42
8.4.130.0130.00819.56
8.4.120.0110.00920.29
8.4.110.0100.01122.68
8.4.100.0130.00817.59
8.4.90.0050.00418.64
8.4.80.0140.00520.57
8.4.70.0120.00618.76
8.4.60.0110.00918.75
8.4.50.0060.00318.54
8.4.40.0030.00717.64
8.4.30.0430.00517.19
8.4.20.0500.00317.45
8.4.10.0410.00617.22
8.3.330.0120.00818.36
8.3.320.0110.00718.51
8.3.310.0110.00918.43
8.3.300.0130.00720.83
8.3.290.0170.00518.29
8.3.280.0110.00918.39
8.3.270.0140.00616.71
8.3.260.0050.00316.42
8.3.250.0100.00818.98
8.3.240.0110.00716.80
8.3.230.0090.00916.48
8.3.220.0100.00818.74
8.3.210.0100.00416.73
8.3.200.0050.00316.16
8.3.190.0030.00517.07
8.3.180.0110.00618.97
8.3.170.0110.00717.05
8.3.160.0350.01016.34
8.3.150.0340.01116.24
8.3.140.0340.00616.57
8.3.130.0170.00216.36
8.3.120.0220.00316.07
8.3.110.0330.00716.29
8.3.100.0360.00716.40
8.3.90.0350.01016.13
8.3.80.0370.01716.26
8.3.70.0390.00616.43
8.3.60.0370.00816.16
8.3.50.0410.00016.10
8.3.40.0390.00317.26
8.3.30.0300.00617.26
8.3.20.0230.01317.02
8.3.10.0330.00317.41
8.3.00.0180.00817.22
8.2.320.0070.01118.04
8.2.310.0120.00718.10
8.2.300.0120.00817.98
8.2.290.0070.01120.21
8.2.280.0110.00820.11
8.2.270.0160.02016.70
8.2.260.0340.00616.34
8.2.250.0290.00816.32
8.2.240.0380.00016.44
8.2.230.0210.01716.17
8.2.220.0270.01216.29
8.2.210.0270.01216.14
8.2.200.0320.00616.41
8.2.190.0350.00816.27
8.2.180.0390.00616.25
8.2.170.0320.00917.60
8.2.160.0300.01017.57
8.2.150.0340.00717.47
8.2.140.0320.00817.19
8.2.130.0290.01117.32
8.2.120.0360.01117.29
8.2.110.0240.01017.58
8.2.100.0320.00317.43
8.2.90.0290.01017.59
8.2.80.0330.00617.46
8.2.70.0310.00917.51
8.2.60.0380.00617.39
8.2.50.0280.01017.41
8.2.40.0290.00717.61
8.2.30.0310.00617.46
8.2.20.0330.00417.36
8.2.10.0270.00917.28
8.2.00.0330.00417.19
8.1.340.0120.00917.55
8.1.320.0090.01018.05

preferences:
44.19 ms | 891 KiB | 5 Q