大约有 26,000 项符合查询结果（耗时：0.0354秒） [XML]
curl_exec() always returns false
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Error checking and handling is the programmer's friend. Check the return values of the initializing and executing cURL functions. curl_error() and curl_errno() will contain further information in case of failure:
try {
$ch = curl_init();
// Check if initial...
What's the difference between nohup and ampersand
...be worth noting that just & does cause the subcommand to not receive some signals (e.g. SIGINT). nohup essentially adds SIGHUP to the list of signals that are not propagated.
– studgeek
May 22 at 21:38
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MySQL Creating tables with Foreign Keys giving errno: 150
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I had the same problem with ALTER TABLE ADD FOREIGN KEY.
After an hour, I found that these conditions must be satisfied to not get error 150:
The Parent table must exist before you define a foreign key to reference it. You must define...
How to adjust an UIButton's imageSize?
...ou're trying to do, you need to play with the buttons image edge inset. Something like:
myLikesButton.imageEdgeInsets = UIEdgeInsets(top, left, bottom, right)
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How does Access-Control-Allow-Origin header work?
Apparently, I have completely misunderstood its semantics. I thought of something like this:
16 Answers
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SQL - Rounding off to 2 decimal places
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Could you not cast your result as numeric(x,2)? Where x <= 38
select
round(630/60.0,2),
cast(round(630/60.0,2) as numeric(36,2))
Returns
10.500000 10.50
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How to count objects in PowerShell?
...urn objects instead of text. So for example, running get-alias returns me a number of System.Management.Automation.AliasInfo objects:
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Absolute vs relative URLs
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+1 I agree. There might be (a few) times when absolute urls are better, for instance when using a CDN, or if you need to change the content website. Searching for a domain name is a lot easier than searching for relative urls IMHO.
– Sune R...
Should I mix AngularJS with a PHP framework? [closed]
AngularJS is very powerful when it comes to interactive HTML5 and model binding. On the other hand, PHP frameworks like Yii enable quick, well-structured, safe and powerful web application development. Both technologies provide sophisticated means for data access, iteration and page layouting.
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Regex - Should hyphens be escaped? [duplicate]
... special character in regex, for instance, to select a range, I could do something like:
3 Answers
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