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How can I sanitize user input with PHP?
... somewhere that works well for sanitizing user input for SQL injection and XSS attacks, while still allowing certain types of HTML tags?
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Select random lines from a file
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I ran this on a 500M row file to extract 1,000 rows and it took 13 min. The file had not been accessed in months, and is on an Amazon EC2 SSD Drive.
– T. Brian Jones
Mar 4 '16 at 18:26
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Difference between int32, int, int32_t, int8 and int8_t
..., but does not define anything named int8 or int32 -- the latter (if they exist at all) is probably from some other header or library (most likely predates the addition of int8_t and int32_t in C99).
Plain int is quite a bit different from the others. Where int8_t and int32_t each have a specified ...
Creating a textarea with auto-resize
...her thread about this , which I've tried. But there is one problem: the textarea doesn't shrink if you delete the content. I can't find any way to shrink it to the correct size - the clientHeight value comes back as the full size of the textarea , not its contents.
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Does the JVM prevent tail call optimizations?
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I did not quite follow the explanation. I thought tail-call optimization was implemented by the compiler. Assuming you have a function that could be tail-call optimized by the compiler, you could also then have an equivalent non-recursive function that ...
What is the maximum possible length of a query string?
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RFC 2616 (Hypertext Transfer Protocol — HTTP/1.1) states there is no limit to the length of a query string (section 3.2.1). RFC 3986 (Uniform Resource Identifier — URI) also states there is no limit, but indicates the hostname is limited ...
What's the difference of “./configure” option “--build”, “--host” and “--target”?
...edded devices, with mips processors, which your code is going to run on
an x86 laptop that you are going to use for debugging these devices in the field
You would configure and build your debugging server (eg gdbserver) to run on your embedded device with
./configure --build=powerpc --host=mi...
How to call any method asynchronously in c#
...da to simplify the call without having to create delegates:
void Foo2(int x, string y)
{
return;
}
...
new Task(() => { Foo2(42, "life, the universe, and everything");}).Start();
I'm pretty sure (but admittedly not positive) that the C# 5 async/await syntax is just syntactic sugar around t...
What does “#define _GNU_SOURCE” imply?
... define _GNU_SOURCE, you will get:
access to lots of nonstandard GNU/Linux extension functions
access to traditional functions which were omitted from the POSIX standard (often for good reason, such as being replaced with better alternatives, or being tied to particular legacy implementations)
acc...
Google Maps V3 - How to calculate the zoom level for a given bounds
...e doubling in each step. So in general you cannot fit the bounds you want exactly (unless you are very lucky with the particular map size).
Another issue is the ratio between side lengths e.g. you cannot fit the bounds exactly to a thin rectangle inside a square map.
There's no easy answer for how...