大约有 10,300 项符合查询结果（耗时：0.0157秒） [XML]
PHP: How to generate a random, unique, alphanumeric string for use in a secret link?
...ng similar to:
string(40) "5fe69c95ed70a9869d9f9af7d8400a6673bb9ce9"
More info: http://php.net/manual/en/function.random-bytes.php
PHP 5 (outdated)
I was just looking into how to solve this same problem, but I also want my function to create a token that can be used for password retrieval as well. ...
What character encoding should I use for a HTTP header?
..." HTML special-character (✰)(see http://html5boilerplate.com/ for more info) for a Server HTTP-header and am wondering if it is "allowed" per spec.
...
How to add texture to fill colors in ggplot2
...ines and diagonal mesh of both) that can be hacked in ggplot.
Please feel free to suggest more if anyone can think on some.
EDIT 4: I've been working on a wrapper function to automate hatching/patterns in ggplot2. I'll post a link once I've expanded the function to allow patterns in facet_grid plo...
How to exclude certain directories/files from git grep search
...binary by creating an attributes file in your repository, e.g.
$ cat .git/info/attributes
directory/to/ignore/*.* binary
directory/to/ignore/*/*.* binary
another_directory/to/also/ignore/*.* binary
Matches in binary files are listed without the including line, e.g.
$ git grep "bar"
Binary file ...
Why is XOR the default way to combine hashes?
...it to the next bit over when both values are 1. This means it erases less information.
So hash(a) + hash(b) is better than hash(a) xor hash(b) in that if a==b, the result is hash(a)<<1 instead of 0.
This remains symmetric; so the "bad" and "dab" getting the same result remains a problem. W...
Specifying and saving a figure with exact size in pixels
...It was a jpg image, so there was no way for me to get the dpi from PIL img.info['dpi'], so the accepted solution did not work for me. But after some tinkering I figured out way to save the figure with the same size as the original.
I am adding the following solution here thinking that it will help s...
What is the best way to ensure only one instance of a Bash script is running? [duplicate]
...er the hood flock uses simply flock(2) syscall and it doesn't provide such information nor it even should. If you want to unreliably check, whether there is a lock present (or lack thereof), i.e. without holding it, then you have to try to acquire it in a non-blocking way (exlock_now) and release it...
Can a Windows batch file determine its own file name?
... first and execute the batch from there, %0 will usually not have the path info (but you could get that from %cd% in that case)
– Gogowitsch
Jul 9 '15 at 8:51
...
How do I fix blurry text in my HTML5 canvas?
...
<em>(physical pixels per CSS pixel)</em></p>
<!-- Info. -->
<p>Zoom your browser to re-run the scaling calculations.
(<code>Ctrl+</code> or <code>Ctrl-</code>)</p>
...
How to avoid explicit 'self' in Python?
... let me be clear that I don't think it is generally a good idea.
For more info, and ways to iterate through class variables, or even functions, see answers and discussion to this question. For a discussion of other ways to dynamically name variables, and why this is usually not a good idea see this...