大约有 40,000 项符合查询结果(耗时:0.0846秒) [XML]

https://stackoverflow.com/ques... 

Uppercase Booleans vs. Lowercase in PHP

...e case-insensitive. So yeah, true === TRUE and false === FALSE. Personally, however, I prefer TRUE over true and FALSE over false for readability reasons. It's the same reason for my preference on using OR over or or ||, and on using AND over and or &&. The PSR-2 standard requires true...
https://stackoverflow.com/ques... 

Validating IPv4 addresses with regexp

...so it ends with a word boundary rather than with the end of line? Additionally here I've marked the non-capturing groups to avoid unwanted sub-matches. NB: This still doesn't take into account @dty's comment as I'm not familiar with that form of IP; though he's correct that it seems valid. ...
https://stackoverflow.com/ques... 

Debug vs Release in CMake

... With CMake, it's generally recommended to do an "out of source" build. Create your CMakeLists.txt in the root of your project. Then from the root of your project: mkdir Release cd Release cmake -DCMAKE_BUILD_TYPE=Release .. make And for Debug (...
https://stackoverflow.com/ques... 

Do htmlspecialchars and mysql_real_escape_string keep my PHP code safe from injection?

... is effectively just a string escaping function. It is not a magic bullet. All it will do is escape dangerous characters in order that they can be safe to use in a single query string. However, if you do not sanitise your inputs beforehand, then you will be vulnerable to certain attack vectors. Ima...
https://stackoverflow.com/ques... 

ios app maximum memory budget

...ered your own question: try not to go beyond the 70 Mb limit, however it really depends on many things: what iOS version you're using (not SDK), how many applications running in background, what exact memory you're using etc. Just avoid the instant memory splashes (e.g. you're using 40 Mb of RAM, a...
https://stackoverflow.com/ques... 

What does the “-U” option stand for in pip install -U

...find any docs for pip's command line options/arguments. What does pip install -U mean? Does anyone have a link to a list of pip's options and arguments? ...
https://stackoverflow.com/ques... 

How can a Java program get its own process ID?

...There exists no platform-independent way that can be guaranteed to work in all jvm implementations. ManagementFactory.getRuntimeMXBean().getName() looks like the best (closest) solution, and typically includes the PID. It's short, and probably works in every implementation in wide use. On linux+wind...
https://stackoverflow.com/ques... 

Read lines from a file into a Bash array [duplicate]

... from BinaryZebra's comment and tested here. The addition of command eval allows for the expression to be kept in the present execution environment while the expressions before are only held for the duration of the eval. Use $IFS that has no spaces\tabs, just newlines/CR $ IFS=$'\r\n' GLOBIGNORE=...
https://stackoverflow.com/ques... 

How do you sort a list in Jinja2?

...000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 47.1084 7.58816C47.4091 7.46349 47.7169 7.36433 48.0099 7.26993C48.9099 6.97997 49.672 6.73443 49.672 5.93063C49.672 5.22043 48.9832 4.61182 48.1414 4.61182C47.4335 4.61182 46.7256 4.91628 46.0943 5.50789C45.7307 4.9328 4...
https://stackoverflow.com/ques... 

Golang tests in sub-directory

... Note that you can run go test "recursively": you need to list all the packages you want to test. If you are in the root folder of your Go project, type: go test ./... The './...' notation is described in the section "Description of package lists" of the "command go": An import path is...