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<?php /* php 打印出字符串的16进制数据 */ 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)); /* 输出结果： 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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时间： 2024-09-23 08:08:03