大约有 47,000 项符合查询结果（耗时：0.0730秒） [XML]
Preferred method to store PHP arrays (json_encode vs serialize)
... simple speed test to compare the two
<?php
ini_set('display_errors', 1);
error_reporting(E_ALL);
// Make a big, honkin test array
// You may need to adjust this depth to avoid memory limit errors
$testArray = fillArray(0, 5);
// Time json encoding
$start = microtime(true);
json_encode($testA...
Round double in two decimal places in C#?
...
|
edited Jul 4 '12 at 3:47
Tim Cooper
138k3434 gold badges286286 silver badges249249 bronze badges
...
Is there a way to instantiate objects from a string holding their class name?
...
|
edited Apr 4 '14 at 1:06
Garet Claborn
1,33822 gold badges1717 silver badges4141 bronze badges
...
How to position text over an image in css
...
174
How about something like this: http://jsfiddle.net/EgLKV/3/
Its done by using position:absolu...
SQLite UPSERT / UPDATE OR INSERT
...
This is a late answer. Starting from SQLIte 3.24.0, released on June 4, 2018, there is finally a support for UPSERT clause following PostgreSQL syntax.
INSERT INTO players (user_name, age)
VALUES('steven', 32)
ON CONFLICT(user_name)
DO UPDATE SET age=excluded.age;
Note: For those havi...
Checking Bash exit status of several commands efficiently
...
14 Answers
14
Active
...
What is WEB-INF used for in a Java EE web application?
...
218
The Servlet 2.4 specification says this about WEB-INF (page 70):
A special directory exists...
Convert SQLITE SQL dump file to POSTGRESQL
...
101
You should be able to feed that dump file straight into psql:
/path/to/psql -d database -U use...
HTML5 check if audio is playing?
...
151
function isPlaying(audelem) { return !audelem.paused; }
The Audio tag has a paused property....
Effects of changing Django's SECRET_KEY
...
Edit: This answer is based on django 1.5
SECRET_KEY is used in a lot of various places, I'll point out what is impacted by it first and then try to go over that list and give precise explanation of the impact.
The list of things using SECRET_KEY directly or in...