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Getting the first character of a string with $str[0]
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Michael MortonMichael Morton
4,19911 gold badge1818 silver badges1212 bronze badges
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In MySQL, can I copy one row to insert into the same table?
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190
I used Leonard Challis's technique with a few changes:
CREATE TEMPORARY TABLE tmptable_1 SELE...
Python division
...t:
>>> float(10 - 20) / (100 - 10)
-0.1111111111111111
or from __future__ import division, which the forces / to adopt Python 3.x's behavior that always returns a float.
>>> from __future__ import division
>>> (10 - 20) / (100 - 10)
-0.1111111111111111
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UTF-8 byte[] to String
... Use Guava's Charsets.UTF_8 if you are on Android API below 19 too
– Ben Clayton
Oct 23 '14 at 9:50
And...
viewWillDisappear: Determine whether view controller is being popped or is showing a sub-view contro
...Style choice?
– zekel
Feb 20 '12 at 19:32
24
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What predefined macro can I use to detect clang?
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edited Jul 19 '17 at 17:00
Martijn Courteaux
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How to configure Git post commit hook
...s/post-receive
– VonC
Jan 30 '14 at 19:36
2
It may be obvious, but I had issues with: curl http:/...
What does FETCH_HEAD in Git mean?
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19
The FETCH_HEAD is a reference to the tip of the last fetch, whether that fetch was initiated di...
How to parse JSON in Scala using standard Scala classes?
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edited Sep 5 '13 at 19:26
answered Sep 5 '13 at 19:16
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关于php的socket初探 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...塞的古老模型：属于同步阻塞 IO 模型，代码如下：
socket_server.php
<?php
/**
* SocketServer Class
* By James.Huang <shagoo#gmail.com>
**/
set_time_limit(0);
class SocketServer
{
private static $socket;
function SocketServer($port)
{ ...