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What is the difference between HTTP_HOST and SERVER_NAME in PHP?
...TP_HOST'] == 'localhost:8080'
$_SERVER['SERVER_NAME'] == 'localhost'
(At least that's what I've noticed in Apache port-based virtualhosts)
Note that HTTP_HOST does not contain :443 when running on HTTPS (unless you're running on a non-standard port, which I haven't tested).
As others have noted,...
What is the pythonic way to detect the last element in a 'for' loop?
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True, this way seems better than mine, at least it don't need to use enumerate and len.
– e.tadeu
Oct 27 '09 at 12:11
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What's the valid way to include an image with no src?
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At least you're sure a stupid firewall won't ask the permission to call port 0...
– Denys Séguret
Jan 22 '13 at 15:46
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Copying PostgreSQL database to another server
...ct from the target server. Make sure port 5432 is open for that matter.
At least 1 available replication connection: max_wal_senders = 1 (-X fetch), 2 for -X stream (the default in case of PostgreSQL 12), or more.
wal_level = replica or higher to be able to set max_wal_senders > 0.
host replicat...
How to change the font size on a matplotlib plot
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I tried many of the answers. This one looks the best, at least in Jupyter notebooks. Just copy the above block at the top and customize the three font size constants.
– fviktor
Sep 13 '17 at 18:48
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What is the difference between memoization and dynamic programming?
..., slide is still good though):
If all subproblems must be solved at least once, a bottom-up dynamic-programming algorithm usually outperforms a top-down memoized algorithm by a constant factor
No overhead for recursion and less overhead for maintaining table
There are some problems ...
How to set default font family for entire Android app
...about it. In addition, your code creates new object for every TextView. At least declare the field as static to load the font from assets once.
– tomrozb
May 6 '13 at 20:17
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jQuery or javascript to find memory usage of page
...wsers have evolved incredibly in this time. Since this now possible (in at least some browsers), and this question is the first result when you Google "javascript show memory useage", I thought I'd offer a modern solution.
memory-stats.js: https://github.com/paulirish/memory-stats.js/tree/master
T...
Is a Java string really immutable?
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Actually, visibility modifiers are (or at least were) intended as protection againts malicious code - however, you need to set a SecurityManager (System.setSecurityManager() ) to activate the protection. How secure this actually is is another question...
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Is Zookeeper a must for Kafka?
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True there are bug and version compatibility issues (at least with Kafka and ZK) but the main intention of zookeeper is to manages those complex tasks required for any distributed system.I agree that managing and tuning your zk cluster do require some effort and depending heavily ...