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Illegal mix of collations (utf8_unicode_ci,IMPLICIT) and (utf8_general_ci,IMPLICIT) for operation '=
Error message on MySql:
7 Answers
7
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What is causing “Unable to allocate memory for pool” in PHP?
...d to change from file-backed to POSIX-compliant in order to get rid of the error.
– Attila Fulop
Jul 24 '12 at 9:45
4
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Can't find the 'libpq-fe.h header when trying to install pg gem
...SQL, but the problem is installing the pg gem. It gives me the following error:
41 Answers
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迅雷发布无限节点CDN 每GB仅0.1元 - 资讯 - 清泛网 - 专注C/C++及内核技术
...节点增加方式不同的是，迅雷在业内启用个人节点，通过连接至千万个家庭路由的赚钱宝们，织成一张节点均匀密布于全网的带宽资源调度库，将CDN节点增加至无限量级。（摩沙雪）
以下是访谈全文：
受访者：陈磊（迅雷CTO...
Setting PayPal return URL and making it auto return?
...ch, CURLOPT_TIMEOUT, 30);
$curl_result = @curl_exec($ch);
$curl_err = curl_error($ch);
curl_close($ch);
$req = str_replace("&", "\n", $req); // Make it a nice list in case we want to email it to ourselves for reporting
// Check that the result verifies
if (strpos($curl_result, "VERIFIED") !== ...
Windows equivalent of the 'tail' command
Is there a way to simulate the *nix tail command on the Windows command line? I have a file and I want a way to snip off the first n lines of text. For example:
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Reverse a string in Python
... for readability and reusability, put the slice in a function
def reversed_string(a_string):
return a_string[::-1]
and then:
>>> reversed_string('a_string')
'gnirts_a'
Longer explanation
If you're interested in the academic exposition, please keep reading.
There is no built-i...
Why historically do people use 255 not 256 for database field magnitudes?
You often see database fields set to have a magnitude of 255 characters, what is the traditional / historic reason why? I assume it's something to do with paging / memory limits, and performance but the distinction between 255 and 256 has always confused me.
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The $.param( ) inverse function in JavaScript / jQuery
Given the following form:
18 Answers
18
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Android Fatal signal 11 (SIGSEGV) at 0x636f7d89 (code=1). How can it be tracked down?
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I was getting this error by saving an object to the shared preferences as a gson converted string. The gson String was no good, so retrieving and deserializing the object was not actually working correctly. This meant any subsequent accesses to...