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App Inventor 2开发计步器与定位器 - App Inventor 2 中文网 - 清泛IT论坛，有思想、有深度
...能。
2.主题：编写“健身宝”手机应用程序
3.问题：
（1）如何获取走路步数、距离？
（2）如何计算走路时间？
（3）如何获得当前位置？
（4）如何存储信息？
4.规划：
（1）利用pedome...
Best practice multi language website
...hing like this in your routing:
"/wilkommen" => "/welcome/lang/de"
... etc ...
These could be stored in a flat file which could be easily written to from your admin panel. JSON or XML may provide a good structure for supporting them.
Notes Regarding A Few Other Options
PHP-based On-The-Fly T...
Best way to create an empty object in JSON with PHP?
...
Well, json_encode() simply returns a string from a PHP array/object/etc. You can achieve the same effect much more efficiently by doing:
$json = '{}';
There's really no point in using a function to accomplish this.
UPDATE
As per your comment updates, you could try:
$test = json_encode(ar...
Reference - What does this error mean in PHP?
...
Warning: mysql_fetch_array() expects parameter 1 to be resource, boolean given
First and foremost:
Please, don't use mysql_* functions in new code. They are no longer maintained and are officially deprecated. See the red box? Learn abou...
Can't use method return value in write context
...ral that's ok, but it's not strictly equivalent to empty(), because "", 0, etc. are "empty", but not null.
– Kornel
Apr 11 '14 at 11:19
|
sh...
Website screenshots
... you're rendering a site which makes use of webfonts, svg, canvas, flexbox etc then good luck getting an accurate screenshot.. If you do want accurate screenshots check my answer which uses urlbox
– cjroebuck
Apr 27 '17 at 8:49
...
PHP function overloading
...creates
The idea is you have different type of arguments, arrays, objects etc, then you detect what you were passed and go from there
function($arg1, $lastname) {
if(is_array($arg1)){
$lastname = $arg1['lastname'];
$firstname = $arg1['firstname'];
} else {
$firstnam...
ab load testing
...if the response times (means, min and max response times, failed requests, etc) are numbers your site can accept (different sites might desire different speeds). You can run the tool with different -c values until you hit the spot where you say "If I increase it, it starts to get failed requests and...
boost多索引容器multi_index_container实战 - C/C++ - 清泛网 - 专注C/C++及内核技术
...越多的同行们能快速高质量地解决实际项目中遇到的各种问题，在此将我将自己实战中实用boost的经验分享给大家，本人才疏学浅，如果有什么问题希望读者们能帮助指出，大家共同探讨^_^
本章介绍的主题是multi_index_container
注...
Simplest two-way encryption using PHP
...ermore it used to accept things like partial keys, performing zero padding etc. There is a good reason why it is in the process of being gradually removed from PHP.
– Maarten Bodewes
May 12 '16 at 15:09
...