大约有 40,000 项符合查询结果（耗时：0.0674秒） [XML]
How to do this in Laravel, subquery where in
...t('product_id'); //don't need ->get() or ->first()
and then we put all together:
Products::whereIn('id', $productCategory)
->where('active', 1)
->select('id', 'name', 'img', 'safe_name', 'sku', 'productstatusid')
->get();//runs all queries at once
Th...
Minimal web server using netcat
...500, for instance, it should show the result of a function ( date in the example below, but eventually it'll be a python or c program that yields some data).
My little netcat web server needs to be a while true loop in bash, possibly as simple as this:
...
Can't install RMagick 2.13.1. Can't find MagickWand.h.
When I try do install rmagick I get the following error message:
32 Answers
32
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Pass a PHP string to a JavaScript variable (and escape newlines) [duplicate]
...
Expanding on someone else's answer:
<script>
var myvar = <?php echo json_encode($myVarValue); ?>;
</script>
Using json_encode() requires:
PHP 5.2.0 or greater
$myVarValue encoded as UTF-8 (or US-ASCII,...
How to make an image center (vertically & horizontally) inside a bigger div [duplicate]
...
Personally, I'd place it as the background image within the div, the CSS for that being:
#demo {
background: url(bg_apple_little.gif) no-repeat center center;
height: 200px;
width: 200px;
}
(Assumes a div with id="de...
Convert a character digit to the corresponding integer in C
...
As per other replies, this is fine:
char c = '5';
int x = c - '0';
Also, for error checking, you may wish to check isdigit(c) is true first. Note that you cannot completely portably do the same for letters, for example:
char c = 'b';
int x = c - 'a'; // x is now not necessari...
How to import CSV file data into a PostgreSQL table?
...rticle.
Solution paraphrased here:
Create your table:
CREATE TABLE zip_codes
(ZIP char(5), LATITUDE double precision, LONGITUDE double precision,
CITY varchar, STATE char(2), COUNTY varchar, ZIP_CLASS varchar);
Copy data from your CSV file to the table:
COPY zip_codes FROM '/path/to/csv/ZI...
How useful/important is REST HATEOAS ( maturity level 3)?
... members believe that a REST API has to be HATEOAS compliant and implement all Richardson's maturity levels ( http://martinfowler.com/articles/richardsonMaturityModel.html )!
...
When should I use a composite index?
...olumn_A )
But it will not (at least not directly, maybe it can help partially if there are no better indices) help for queries that need
index( column_A, column_C )
Notice how column_B is missing.
In your original example, a composite index for two dimensions will mostly benefit queries that q...
How to get first record in each group using Linq
...er using the method 'FirstOrDefault' in this instance instead." from your example. Only operation on the list i did after the query was passing myResult.ToList() to a method. Using FirstOrDefault solved it though
– aghost
Feb 5 '16 at 10:38
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