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PHP prepend leading zero before single digit number, on-the-fly [duplicate]
...manual/en/function.sprintf.php
<?php
$num = 4;
$num_padded = sprintf("%02d", $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 th...
Split string into array of character strings
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Stephan
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answered Oct 19 '12 at 7:35
cobertycoberty
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How do you get centered content using Twitter Bootstrap?
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For other types of content, see Flavien's answer.
Update: Bootstrap 2.3.0+ Answer
The original answer was for an early version of bootstrap. As of bootstrap 2.3.0, you can simply give the div the class .text-center.
Original Answer (pre 2.3.0)
You need to define one of the two classes, row o...
What does a colon following a C++ constructor name do? [duplicate]
...is constructor? Is it equivalent to MyClass(m_classID = -1, m_userdata = 0); ?
9 Answers
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How to check if string input is a number? [duplicate]
How do I check if a user's string input is a number (e.g. -1 , 0 , 1 , etc.)?
24 Answers
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An existing connection was forcibly closed by the remote host
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103
This generally means that the remote side closed the connection (usually by sending a TCP/IP RS...
Difference between const & const volatile
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10 Answers
10
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How to detect Adblock on my website?
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I added a small js file to my webroot with the name prebid-ads.js
Update 2020-07-27: you might want to call the file prebid-ads.js or something, because uBlock Origin does not block files with name like ads.js anymore.
This is the only line of code in that file
var canRunAds = true;
Then somewhere...
Determining if a number is either a multiple of ten or within a particular set of ranges
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For the first one, to check if a number is a multiple of use:
if (num % 10 == 0) // It's divisible by 10
For the second one:
if(((num - 1) / 10) % 2 == 1 && num <= 100)
But that's rather dense, and you might be better off just listing the options explicitly.
Now that you've given...
How to list all the available keyspaces in Cassandra?
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TheoTheo
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