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How to add elements to an empty array in PHP?
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Both array_push and the method you described will work.
$cart = array();
$cart[] = 13;
$cart[] = 14;
// etc
//Above is correct. but below one is for further understanding
$cart = array();
for($i=0;$i<=5;$i++){
$cart[] = $i;
}
echo "<pre>";
print_r($cart);
echo ...
Python extract pattern matches
...tern, if found, retrieve the string using group(index). Assuming valid checks are performed:
>>> p = re.compile("name (.*) is valid")
>>> result = p.search(s)
>>> result
<_sre.SRE_Match object at 0x10555e738>
>>> result.group(1) # group(1) will return th...
Passing an array to a function with variable number of args in Swift
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Splatting is not in the language yet, as confirmed by the devs. Workaround for now is to use an overload or wait if you cannot add overloads.
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Performance surprise with “as” and nullable types
...conversions have to be considered.
The is operator test is easy, just check if the object isn't null and is of the expected type, takes but a few machine code instructions. The cast is also easy, the JIT compiler knows the location of the value bits in the object and uses them directly. No copyin...
How to compare UIColors?
I'd like to check the color set for a background on a UIImageView. I've tried:
20 Answers
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How to delete a file via PHP?
...olute pathname
is_writable — Tells whether the filename is writable
unlink — Deletes a file
Run your filepath through realpath, then check if the returned path is writable and if so, unlink it.
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Set the value of an input field
... edited Jan 10 '16 at 0:13
mikemaccana
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answered Sep 30 '11 at 10:33
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When do you use POST and when do you use GET?
...er. Use GET when it's safe to allow a person to call an action. So a URL like:
http://myblog.org/admin/posts/delete/357
Should bring you to a confirmation page, rather than simply deleting the item. It's far easier to avoid accidents this way.
POST is also more secure than GET, because you aren'...
Repeater, ListView, DataList, DataGrid, GridView … Which to choose?
...really about what you trying to achieve
Gridview - Limited in design, works like an html table. More in built functionality like edit/update, page, sort. Lots of overhead.
DataGrid - Old version of the Gridview. A gridview is a super datagrid.
Datalist - more customisable version of the Gridview....
Implementing MVC with Windows Forms
... written is still very limited. Past Windows Forms applications I have worked on have been so different from each other. Some of the design differences I have seen are (including most combinations):
Directly talk to the database (2 tier)
Use a backend that has been written for the given applicati...