note 68132 added to function.bin2hex
| From: | nilzie at gmail dot com | Date: | Fri, 14 Jul 2006 13:12:24 +0000 |
| Subject: | note 68132 added to function.bin2hex | ||
| Groups: | php.notes | ||
| Request: | Send a blank email to php-notes+get-114779@lists.php.net to get a copy of this message | ||
Since PHP only has a way to convert a real binary string into hex, couldn't I find a function
that can convert binary information written in ascii (like 0110). This function will convert that
<?
function asciibin2hex($str) {
$str = str_replace(" ", "", $str); //delete some probably spaces
//Binary to HEX list
$binary['0000'] = "0";
$binary['0001'] = "1";
$binary['0010'] = "2";
$binary['0011'] = "3";
$binary['0100'] = "4";
$binary['0101'] = "5";
$binary['0110'] = "6";
$binary['0111'] = "7";
$binary['1000'] = "8";
$binary['1001'] = "9";
$binary['1010'] = "a";
$binary['1011'] = "b";
$binary['1100'] = "c";
$binary['1101'] = "d";
$binary['1110'] = "e";
$binary['1111'] = "f";
//make sets of 4
for( ; ; ) {
$calc = strlen($str) / 4;
if(is_numeric($calc)&&(intval($calc)==floatval($calc))) {
break;
}
else {
$str .= 0;
}
}
//translate binary to hex
for($i = 0 ; $i < strlen($str) ; $i = $i + 4) {
$set = substr($str, $i, 4);
$inhex .= $binary[$set];
}
return $inhex;
}
//Examples:
echo asciibin2hex("101101011100"); //prints: b5c
echo asciibin2hex("1011 1000 1111 1100") //prints: b8fc
echo asciibin2hex("1000 1011 1101 001") //prints: 8bd2
?>
I hope I didn't make it too hard for myself writing this all, but hé, it works :)
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Manual Page -- http://www.php.net/manual/en/function.bin2hex.php
Edit -- http://master.php.net/note/edit/68132
Del: integrated -- http://master.php.net/note/delete/68132/integrated
Del: useless -- http://master.php.net/note/delete/68132/useless
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Del: spam -- http://master.php.net/note/delete/68132/spam
Del: non-english -- http://master.php.net/note/delete/68132/non-english
Del: in docs -- http://master.php.net/note/delete/68132/in+docs
Del: other reasons-- http://master.php.net/note/delete/68132
Reject -- http://master.php.net/note/reject/68132
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