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App inventor 2的编程 - App Inventor 2 中文网 - 清泛IT社区，为创新赋能！
...这个功能，需要借助拓展，而网上找到的一款拓展运行有问题，不推荐了。其实原理很简单，原生Android代码很容易获取，包装成拓展就可以了，中文网正在开发获取手机相关信息的拓展，完成后会第一时间进行通知，敬请期待...
Get Image Height and Width as integer values?
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@poke: are you really 100% sure?
– Sarfraz
Feb 18 '10 at 5:04
5
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How do I get the last inserted ID of a MySQL table in PHP?
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mysql_(...) is deprecated in PHP >= 5.5 version.
– Iago
Oct 30 '14 at 2:12
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Uncaught SyntaxError: Unexpected token :
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And how do I fix this? I have a php redirect that is causing this in Chrome.
– Works for a Living
Mar 8 '16 at 20:20
7
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google oauth2 redirect_uri with several parameters
...rameters to your redirect uri, have them stored in state
parameter before calling Oauth url, the url after authorization will send the same parameters to your redirect uri as
state=THE_STATE_PARAMETERS
So for your case,do this:
/1. create a json string of your parameters ->
{ "a" : "b" , "c"...
Regex: match everything but specific pattern
...thing but a string starting with a specific pattern (specifically index.php and what follows, like index.php?id=2342343 )
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Doctrine - How to print out the real sql, not just the prepared statement?
...trine is not sending a "real SQL query" to the database server : it is actually using prepared statements, which means :
Sending the statement, for it to be prepared (this is what is returned by $query->getSql())
And, then, sending the parameters (returned by $query->getParameters())
and exe...
Getting the location from an IP address [duplicate]
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You could download a free GeoIP database and lookup the IP address locally, or you could use a third party service and perform a remote lookup. This is the simpler option, as it requires no setup, but it does introduce additional latency.
One third party service you could use is mine, http://...
Http长连接200万尝试及调优 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...200万个，但我们设置最大文件描述符限制时，会遇到一些问题，我们在后面详细讲解。
2. 客户端的准备
由于我们需要构建大量的客户端，而我们知道，在一台系统上，连接到一个服务时的本地端口是有限的。由于端口是16位整...
Possibility of duplicate Mongo ObjectId's being generated in two different collections?
...que ID (please let me know if there are more):
Before this discussion, recall that the BSON Object ID consists of:
[4 bytes seconds since epoch, 3 bytes machine hash, 2 bytes process ID, 3 bytes counter]
Here are the three possibilities, so you judge for yourself how likely it is to get a dupe:
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