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Check if PHP session has already started
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Recommended way for versions of PHP >= 5.4.0 , PHP 7
if (session_status() == PHP_SESSION_NONE) {
session_start();
}
Reference: http://www.php.net/manual/en/function.session-status.php
For versions of PHP < 5.4.0
if(session_id() == '') {
session_sta...
What is the difference between Class and Klass in ruby?
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John Lemp
4,86033 gold badges2525 silver badges3636 bronze badges
answered Nov 28 '10 at 22:09
Chris HealdChris Heald
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How to implement a many-to-many relationship in PostgreSQL?
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edited Jul 31 at 14:50
answered Mar 20 '12 at 15:52
E...
Is it OK to use Gson instance as a static field in a model bean (reuse)?
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edited Apr 30 '12 at 8:58
answered Apr 30 '12 at 8:51
MB...
Limiting the number of records from mysqldump?
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answered Sep 25 '08 at 20:39
Adam BellaireAdam Bellaire
95.7k1919 gold badges141141 silver badges159159 bronze badges
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Find a Git branch containing changes to a given file
I have 57 local branches. I know I made a change to a certain file in one of them, but I'm not sure which one. Is there some kind of command I can run to find which branches contain changes to a certain file?
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How do I install a custom font on an HTML site
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edited Jul 22 '17 at 5:51
doniyor
29.6k4343 gold badges132132 silver badges224224 bronze badges
ans...
static allocation in java - heap, stack and permanent generation
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152
First, as should be clear to you by now that there are very few people who can confirm these a...
Is calculating an MD5 hash less CPU intensive than SHA family functions?
Is calculating an MD5 hash less CPU intensive than SHA-1 or SHA-2 on "standard" laptop x86 hardware? I'm interested in general information, not specific to a certain chip.
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What is a memory fence?
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5
true, volatile isn't thread aware but you can use it to stop the compiler applying certain optimisations - this is unrelated to fences ;)
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