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PHP: How to generate a random, unique, alphanumeric string for use in a secret link?
...yes nice but overkill, especially considering it is pretty much deprecated now for php 5.7
– Andrew
Mar 21 '16 at 17:30
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What are “connecting characters” in Java identifiers?
...t i = Character.MIN_CODE_POINT; i <= Character.MAX_CODE_POINT; i++)
if (Character.isJavaIdentifierStart(i) && !Character.isAlphabetic(i))
System.out.print((char) i + " ");
}
prints
$ _ ¢ £ ¤ ¥ ؋ ৲ ৳ ৻ ૱ ௹ ฿ ៛ ‿ ⁀ ⁔ ₠ ₡ ₢ ₣ ₤ ₥ ₦ ₧ ...
Nested defaultdict of defaultdict
...
One note. If you are trying to use this code while pickling lambda won't work.
– Viacheslav Kondratiuk
Apr 3 '17 at 11:52
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Is there a way to iterate over a slice in reverse in Go?
...ation with index
for k := range s {
k = len(s) - 1 - k
// now k starts from the end
}
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How to show all shared libraries used by executables in Linux?
...ike to know which libraries are used by executables on my system. More specifically, I'd like to rank which libraries are used the most, along with the binaries that use them. How can I do this?
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How does the bitwise complement operator (~ tilde) work?
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How does the machine know it is getting a two complement negative number instead of a higher positive number? Is it because of the type system of the respective language indicating that the type is a signed int versus unsigned?
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Can (domain name) subdomains have an underscore “_” in it?
...s only one restriction on the particular labels
that can be used to identify resource records. That one
restriction relates to the length of the label and the full
name. [...] Implementations of the DNS protocols must not place any
restrictions on the labels that can be used. In particular...
mysql_fetch_array()/mysql_fetch_assoc()/mysql_fetch_row()/mysql_num_rows etc… expects parameter 1 to
...ult = mysql_query("SELECT * FROM Users WHERE UserName LIKE '$username'");
if($result === FALSE) {
die(mysql_error()); // TODO: better error handling
}
while($row = mysql_fetch_array($result))
{
echo $row['FirstName'];
}
mysqli extension
procedural style:
$username = mysqli_real_escape_...
Socket.IO - how do I get a list of connected sockets/clients?
... // the default namespace is "/"
, ns = io.of(namespace ||"/");
if (ns) {
for (var id in ns.connected) {
if(roomId) {
var index = ns.connected[id].rooms.indexOf(roomId);
if(index !== -1) {
res.push(ns.connected[id]);
...
Copy folder recursively, excluding some folders
...ou using? Rsync is included by default in all mainstream Linux distros I know of, including RHEL, CentOS, Debian, and Ubuntu, and I believe it's in FreeBSD as well.
– siliconrockstar
Jan 30 '15 at 19:50
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