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PHP Session Fixation / Hijacking
...nt these problems. I've been reading the following two articles on Chris Shiflett's website:
5 Answers
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Why does base64 encoding require padding if the input length is not divisible by 3?
...e lost, as might happen, for example, in a very simple network protocol.
If unpadded strings are concatenated, it's impossible to recover the original data because information about the number of odd bytes at the end of each individual sequence is lost. However, if padded sequences are used, there...
How to check if object (variable) is defined in R?
I'd like to check if some variable is defined in R - without getting an error. How can I do this?
6 Answers
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How to sort an array of objects with jquery or javascript [duplicate]
...cts from the array
// thus a[1] and b[1] will equal the names
// if they are equal, return 0 (no sorting)
if (a[1] == b[1]) { return 0; }
if (a[1] > b[1])
{
// if a should come after b, return 1
return 1;
}
else
{
// if b should come after...
Compare floats in php
...
If you do it like this they should be the same. But note that a characteristic of floating-point values is that calculations which seem to result in the same value do not need to actually be identical. So if $a is a literal ....
How can I programmatically create a new cron job?
...n it already exists is bad.
Remove the crontab line. Perhaps only warning if it didn't exist.
A combination of the above two features to replace the crontab line.
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Is there a way to check if WPF is currently executing in design mode or not?
...e know of some global state variable that is available so that I can check if the code is currently executing in design mode (e.g. in Blend or Visual Studio) or not?
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What's the main difference between int.Parse() and Convert.ToInt32
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If you've got a string, and you expect it to always be an integer (say, if some web service is handing you an integer in string format), you'd use Int32.Parse().
If you're collecting input from a user, you'd generally use In...
How do I perform an IF…THEN in an SQL SELECT?
How do I perform an IF...THEN in an SQL SELECT statement?
30 Answers
30
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关于php的socket初探 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...ocketServer($port)
{
global $errno, $errstr;
if ($port < 1024) {
die("Port must be a number which bigger than 1024/n");
}
$socket = stream_socket_server("tcp://0.0.0.0:{$port}", $errno, $errstr);
if (!$socket) ...