Php prints the hexadecimal string. The following function is a php hexadecimal instance that prints a string. The core function here is chr to obtain the binary value and convert it to the hexadecimal value. The code is as follows: Copy the code? The following function is a php hexadecimal instance that prints the string. The core function here is chr to obtain the binary value and convert it to the hexadecimal value.
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/*
Php prints the hexadecimal data of the string.
*/
Function hex_dump ($ data, $ newline = "n ")
{
Static $ from = '';
Static $ to = '';
Static $ width = 16; # number of bytes per line
Static $ pad = '.'; # padding for non-visible characters
If ($ from = '')
{
For ($ I = 0; $ I <= 0xFF; $ I ++)
{
$ From. = chr ($ I );
$ To. = ($ I >= 0x20 & $ I <= 0x7E )? Chr ($ I): $ pad;
}
}
$ Hex = str_split (bin2hex ($ data), $ width * 2 );
$ Chars = str_split (strtr ($ data, $ from, $ to), $ width );
$ Offset = 0;
Foreach ($ hex as $ I => $ line)
{
Echo sprintf ('% 6x', $ offset ). ':'. implode ('', str_split ($ line, 2 )). '['. $ chars [$ I]. ']'. $ newline;
$ Offset + = $ width;
}
}
$ Info = "this is a testx00x99hex_dump ";
Print_r (hex_dump ($ info ));
/*
Output result:
0: 74 68 69 73 20 69 73 20 61 20 74 65 73 74 00 99 [this is a test ..]
10: 68 65 78 5f 64 75 6d 70 [hex_dump]
*/
?>
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Worker prints the hexadecimal instance of the string. The core function here is chr to obtain the binary value and then convert it to the hexadecimal number. The code is as follows ?...
