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PHP prepend leading zero before single digit number, on-the-fly [duplicate]
..., $num);
echo $num_padded; // returns 04
?>
It will only add the zero if it's less than the required number of characters.
Edit: As pointed out by @FelipeAls:
When working with numbers, you should use %d (rather than %s), especially when there is the potential for negative numbers. If you're ...
What do the f and t commands do in Vim?
...at they are very useful. Would really appreciate an answer with an example if possible, thanks!
4 Answers
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WPF Bind to itself
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I have a DataGrid where if the user accesses one of its ContextMenu's MenuItem's Command's via an InputBinding's KeyBinding whose CommandParameter="{Binding ElementName=MyDataGrid, Path=SelectedItems}", it'll pass the SelectedItems to the Bound ICom...
How can I wait In Node.js (JavaScript)? l need to pause for a period of time
...
This is async, it means that if function1 terminates before 3 seconds, they start overlapping each other. Then you can't even return and it's almost never utilizable. The only way I found so far was using debugger;
– Cristian Traì...
Revert a range of commits in git
... From looking at the gitrevisions documentation, I cannot see how to specify the range I need. For example:
4 Answers
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Valid content-type for XML, HTML and XHTML documents
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HTML: text/html, full-stop.
XHTML: application/xhtml+xml, or only if following HTML compatbility guidelines, text/html. See the W3 Media Types Note.
XML: text/xml, application/xml (RFC 2376).
There are also many other media types based around XML, for example application/rss+xml or image/...
What does “to stub” mean in programming?
...example in below code:
public void Analyze(string filename)
{
if(filename.Length<8)
{
try
{
errorService.LogError("long file entered named:" + filename);
}
catch (Exception e)
{
mailSe...
Where do I find the line number in the Xcode editor?
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If you don't want line numbers shown all the time another way to find the line number of a piece of code is to just click in the left-most margin and create a breakpoint (a small blue arrow appears) then go to the breakpoint ...
Troubleshooting “The use statement with non-compound name … has no effect”
...as, not to "import" a namespace and thus henceforth omit the namespace qualifier altogether.
So, you could do:
use Blog\Article as BA;
... to shorten it, but you cannot get rid of it entirely.
Consequently, use Blog is useless, but I believe you could write:
use \ReallyLongNSName as RLNN;
...
Get file name and extension in Ruby
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@saigkill use ".*", wildcard, as Phrogz said if you don't know/care what the extension is.
– Travis Reeder
Feb 19 '14 at 8:32
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