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MySQL vs MySQLi when using PHP [closed]
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If you have a look at MySQL Improved Extension Overview, it should tell you everything you need to know about the differences between the two.
The main useful features are:
an Object-oriented interface
support for prepared statements
support for multiple statements
support for...
What does the leading semicolon in JavaScript libraries do?
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It allows you to safely concatenate several JavaScript files into one, to serve it quicker as one HTTP request.
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How to use SVN, Branch? Tag? Trunk?
I was googling around a little bit and couldn't find a good "beginners" guide to SVN , not in the meaning of "how do I use the commands" rather; How do I control my source code?
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std::vector versus std::array in C++
...ap, that grows and shrinks automatically if elements are added or removed. It provides all the hooks (begin(), end(), iterators, etc) that make it work fine with the rest of the STL. It also has several useful methods that let you perform operations that on a normal array would be cumbersome, like e...
Terminating a script in PowerShell
...to terminate a PowerShell (PS1) script when an unrecoverable error occurs within a function. For example:
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Why is using the JavaScript eval function a bad idea?
...hallenging
(no line numbers, etc.)
eval'd code executes slower (no opportunity to compile/cache eval'd code)
Edit: As @Jeff Walden points out in comments, #3 is less true today than it was in 2008. However, while some caching of compiled scripts may happen this will only be limited to scripts that...
How can i tell if an object has a key value observer attached
...removeObservers: for a key path and that key path has not been registered, it cracks the sads. like -
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What are the disadvantages of using persistent connection in PDO
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Please be sure to read this answer below, which details ways to mitigate the problems outlined here.
The same drawbacks exist using PDO as with any other PHP database interface that does persistent connections: if your script terminates unexpectedly in the middle of database operations...
Command substitution: backticks or dollar sign / paren enclosed? [duplicate]
What's the preferred way to do command substitution in bash?
3 Answers
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Confused about stdin, stdout and stderr?
I am rather confused with the purpose of these three files. If my understanding is correct, stdin is the file in which a program writes into its requests to run a task in the process, stdout is the file into which the kernel writes its output and the process requesting it accesses the informatio...