function mysql_unescape_string($s)
{
$sl=strlen($s);
for ($a=0;$a<$sl;$a++)
{
$c=substr($s,$a,1);
if ($c=="\\")
{
switch(substr($s,$a+1,1))
{
case "0":
$c="\0";
break;
case "n":
$c="\n";
break;
case "t":
$c="\t";
break;
case "r":
$c="\r";
break;
case "b":
$c="\b";
break;
case "\'":
$c="'";
break;
case "\"":
$c="\"";
break;
case "\\":
$c="\\";
break;
case "%":
$c="\%";
break;
case "_":
$c="_";
break;
default:
echo("unhandled exception!");
}
// advance the counter because we are pealing off the char after the scanned \
$a++;
}
$s2.=$c;
}
return $s2;
}
?>
Example :
========
In PHP3, the code:
...
$row=mysql_fetch_row($res);
$fielddata=strval($row[0]);
....
becomes (in PHP4):
....
$row=mysql_fetch_row($res);
$fielddata=mysql_unescape_string(strval($row[0]));