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Cookies vs. sessions

I started using PHP a couple of months ago. For the sake of creating a login system for my website, I read about cookies and sessions and their differences (cookies are stored in the user's browser and sessions on the server). At that time, I preferred cookies (and who does not like cookies?!) and j...
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Find directory name with wildcard or similar to “like”

I am using the following command to find a directory name. 1 Answer 1 ...
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In Bash, how to add “Are you sure [Y/n]” to any command or alias?

In this particular case, I'd like to add a confirm in Bash for 17 Answers 17 ...
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Tablet or Phone - Android

Is there a way to check if the user is using a tablet or a phone? I've got problems with my tilt function and my new tablet (Transformer) ...
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What do 'real', 'user' and 'sys' mean in the output of time(1)?

... time slices used by other processes and time the process spends blocked (for example if it is waiting for I/O to complete). User is the amount of CPU time spent in user-mode code (outside the kernel) within the process. This is only actual CPU time used in executing the process. Other processes a...
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Seeding the random number generator in Javascript

Is it possible to seed the random number generator (Math.random) in Javascript? 13 Answers ...
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How to echo or print an array in PHP?

... This will do foreach($results['data'] as $result) {     echo $result['type'], '<br>'; } share | improve this answer | ...
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Which characters are valid in CSS class names/selectors?

What characters/symbols are allowed within the CSS class selectors? I know that the following characters are invalid , but what characters are valid ? ...
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How to check if a variable is set in Bash?

... does not require quotes (since it either expands to x (which contains no word breaks so it needs no quotes), or to nothing (which results in [ -z ], which conveniently evaluates to the same value (true) that [ -z "" ] does as well)). However, while quotes can be safely omitted, and it was not imm...
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Why can't I use float value as a template parameter?

When I try to use float as a template parameter, the compiler cries for this code, while int works fine. 11 Answers ...