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PHP: How to generate a random, unique, alphanumeric string for use in a secret link?
How would it be possible to generate a random, unique string using numbers and letters for use in a verify link? Like when you create an account on a website, and it sends you an email with a link, and you have to click that link in order to verify your account
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Regular expression to match any character being repeated more than 10 times
...ckslashes, e.g. Emacs would make you write \(.\)\1\{9,\} here.
If a whole string should consist of 9 or more identical characters, add anchors around the pattern:
my $regex = qr/^(.)\1{9,}$/;
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What's best SQL datatype for storing JSON string?
What's the best SQL datatype for storing JSON string?
5 Answers
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What is stack unwinding?
... char* pleak = new char[1024]; // might be lost => memory leak
std::string s( "hello world" ); // will be properly destructed
if ( x ) throw std::runtime_error( "boom" );
delete [] pleak; // will only get here if x == 0. if x!=0, throw exception
}
int main()
{
try
{
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How to Query an NTP Server using C#?
...rver using C# to get the Date Time of the NTP Server returned as either a string or as a DateTime .
6 Answers
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Why do access tokens expire?
...red only via TLS (and your first bullet point does not apply) is there any extra security? 2) Assuming that all this holds in our scenario (only TLS, no self-encoded unrevokable tokens), is it okay to issue access tokens that don't expire?
– Thilo
Jul 6 '12 at ...
Why is reading lines from stdin much slower in C++ than Python?
I wanted to compare reading lines of string input from stdin using Python and C++ and was shocked to see my C++ code run an order of magnitude slower than the equivalent Python code. Since my C++ is rusty and I'm not yet an expert Pythonista, please tell me if I'm doing something wrong or if I'm mis...
Why is the use of alloca() not considered good practice?
...pers when I couldn't fix it), it wasn't straight alloca, it was one of ATL string conversion macros.
So the lesson is - do not use alloca in functions that you think might be inlined.
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In C#, why is String a reference type that behaves like a value type?
A String is a reference type even though it has most of the characteristics of a value type such as being immutable and having == overloaded to compare the text rather than making sure they reference the same object.
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Executing multi-line statements in the one-line command-line?
...rehension, lambdas, sys.stdout.write, the "map" builtin, and some creative string interpolation, you can do some powerful one-liners.
The question is, how far do you want to go, and at what point is it not better to write a small .py file which your makefile executes instead?
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