大约有 47,000 项符合查询结果（耗时：0.0739秒） [XML]
A numeric string as array key in PHP
... manual:
A key may be either an integer or a string. If a key is the standard representation of an integer, it will be interpreted as such (i.e. "8" will be interpreted as 8, while "08" will be interpreted as "08").
Addendum
Because of the comments below, I thought it would be fun to point ou...
PHP - how to create a newline character?
...
Only double quoted strings interpret the escape sequences \r and \n as '0x0D' and '0x0A' respectively, so you want:
"\r\n"
Single quoted strings, on the other hand, only know the escape sequences \\ and \'.
So unless you concatenate the single quoted string with a line break genera...
When and how should I use a ThreadLocal variable?
...
One possible (and common) use is when you have some object that is not thread-safe, but you want to avoid synchronizing access to that object (I'm looking at you, SimpleDateFormat). Instead, give each thread its own instance of the object...
Non-static variable cannot be referenced from a static context
...
You must understand the difference between a class and an instance of that class. If you see a car on the street, you know immediately that it's a car even if you can't see which model or type. This is because you compare what you see with t...
Recursively add the entire folder to a repository
I am trying to add a branch to the master branch on GitHub and push a folder onto that branch.
15 Answers
...
Double Iteration in List Comprehension
...y don't have much meaning to me! Suppose you have a text full of sentences and you want an array of words.
# Without list comprehension
list_of_words = []
for sentence in text:
for word in sentence:
list_of_words.append(word)
return list_of_words
I like to think of list comprehension a...
What's the best way to get the current URL in Spring MVC?
...there anything smarter than taking the current HttpServletRequest object and it's getParameter...() methods to rebuilt the complete URL including (and only) it's GET parameters.
...
How can I find where I will be redirected using cURL?
...work right. I have a string that I want to send as a GET param to a server and get the resulting URL.
7 Answers
...
Drop all tables whose names begin with a certain string
...his script several times because of foreign key constraints between master and detail tables.
– Alexander Prokofyev
Dec 26 '08 at 5:24
7
...
How to read a CSV file into a .NET Datatable
...table using the structure of the data to create the DataTable:
A portable and efficient generic parser for flat files
It's easy to configure and easy to use. I urge you to take a look.
share
|
im...