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How do I get a file extension in PHP?
This is a question you can read everywhere on the web with various answers:
28 Answers
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Firefox ignores option selected=“selected”
...ur is hard-coded into Firefox.
You could try setting each form element to its defaultValue on page load.
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How do I use boolean variables in Perl?
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In Perl, the following evaluate to false in conditionals:
0
'0'
undef
'' # Empty scalar
() # Empty list
('')
The rest are true. There are no barewords for true or false.
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How to Sort Multi-dimensional Array by Value?
...unction($a, $b) {
return $a['order'] - $b['order'];
});
And finally with PHP 7 you can use the spaceship operator:
usort($myArray, function($a, $b) {
return $a['order'] <=> $b['order'];
});
To extend this to multi-dimensional sorting, reference the second/third sorting elements if...
Disabling Chrome cache for website development
I am modifying a site's appearance (CSS modifications) but can't see the result on Chrome because of annoying persistent cache. I tried Shift +refresh but it doesn't work.
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Can't start Eclipse - Java was started but returned exit code=13
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There are working combinations of OS, JDK and Eclipse bitness. In my case, I was using a 64-bit JDK with a 32-bit Eclipse on a 64-bit OS. After downgrading the JDK to 32-bit, Eclipse started working.
Use one of the following combinations.
32-bit OS, 32-bit JDK, 32-bit Eclipse ...
Android SDK manager won't open
...ment before the windows\system32 directory.
The SDK Manager uses java and it was finding the one in the system32 folder.
In a CMD window, you can run 'where java'.
Don't forget to restart your CMD after changing the path variable for checking.
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SQL query return data from multiple tables
...ing two or more tables using an inner join (See the wikipedia entry for additional info)
How to use a union query
Left and Right Outer Joins (this stackOverflow answer is excellent to describe types of joins)
Intersect queries (and how to reproduce them if your database doesn't support them) - this ...
Fluent Validation vs. Data Annotations [closed]
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I prefer Fluent Validation:
It gives me far better control of my validation rules
Doing conditional validation on different properties is so much easier compared to Data Annotations
It separates the validation from my view models
Unit testing is far eas...
Is there a way to break a list into columns?
My webpage has a 'skinny' list: for example, a list of 100 items of one word in length each. To reduce scrolling, I want to present this list in two or even four columns on the page. How should I do this with CSS?
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