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How can I store my users' passwords safely?
...y (one PHP file) that will give you PHP 5.5's password_hash in PHP 5.3.7+: https://github.com/ircmaxell/password_compat
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How to insert text at beginning of a multi-line selection in vi/Vim
... Esc to enter 'command mode'
Use Ctrl+V to enter visual block mode
Move Up/Downto select the columns of text in the lines you want to
comment.
Then hit Shift+i and type the text you want to insert.
Then hit Esc, wait 1 second and the inserted text will appear on every line.
For further information...
How to get an MD5 checksum in PowerShell
... I have vanilla PowerShell installed with no extensions, so I broke down and downloaded a command-line md5sum clone instead, which works great. I want to like Microsoft's stuff, but I just can't.
– StockB
Feb 12 '13 at 18:56
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Cross-Origin Request Headers(CORS) with PHP headers
...l idea of what is involved. For the nitty-gritty low-down, read:
*
* - https://developer.mozilla.org/en/HTTP_access_control
* - http://www.w3.org/TR/cors/
*
*/
function cors() {
// Allow from any origin
if (isset($_SERVER['HTTP_ORIGIN'])) {
// Decide if the origin in $_SERVE...
Function pointers, Closures, and Lambda
...he outer function, while still being able to send function pointers up and down the call stack. (To follow this explanation, you should know the basics of how function calls are implemented in C and most similar languages: browse through the call stack entry on Wikipedia.)
What kind of object is a ...
Android emulator-5554 offline
...
From the AVD Manager try the "Cold Boot Now" option in the drop-down. It worked for me!
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What's the difference between a Python “property” and “attribute”?
...eUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...
Why is creating a Thread said to be expensive?
... data structures.
It is also expensive in the sense that the thread ties down resources as long as it is alive; e.g. the thread stack, any objects reachable from the stack, the JVM thread descriptors, the OS native thread descriptors.
The costs of all of these things are platform specific, but th...
Rolling median algorithm in C
...g both ideas in top coders link suggested by MAK ( Match Editorial: scroll down to FloatingMedian).
Two multisets
The first idea partitions the data into two data structures (heaps, multisets etc) with O(ln N) per insert/delete does not allow the quantile to be changed dynamically without a large ...
One line ftp server in python
...
Right, I do deserve down-voting, but really, people should know Twisted. And of course Twisted is in the base install of many Linuxes.
– Ali Afshar
Feb 14 '11 at 17:42
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