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Maximum length of the textual representation of an IPv6 address?

I want to store the data returned by $_SERVER["REMOTE_ADDR"] in PHP into a DB field, pretty simple task, really. The problem is that I can't find any proper information about the maximum length of the textual representation of an IPv6 address, which is what a webserver provides through $_SERVER...
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How does Dijkstra's Algorithm and A-Star compare?

... dist[], bool sptSet[]) { // Initialize min value int min = INT_MAX, min_index; for (int v = 0; v < V; v++) if (sptSet[v] == false && dist[v] <= min) min = dist[v], min_index = v; return min_index; } int printSolution(int dist[], int n) { printf("Vertex Distance...
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Prevent body scrolling but allow overlay scrolling

... 0; bottom: 0; } [aria-hidden="true"] { transition: opacity 1s, z-index 0s 1s; width: 100vw; z-index: -1; opacity: 0; } [aria-hidden="false"] { transition: opacity 1s; width: 100%; z-index: 1; opacity: 1; } ...
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Tainted canvases may not be exported

..."anonymous" ...) Install a webserver on your development computer (IIS and PHP web servers both have free editions that work nicely on a local computer). share | improve this answer | ...
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How do I flush the cin buffer?

...ble. See Using fflush(stdin). Also, see http://ubuntuforums.org/showpost.php?s=9129c7bd6e5c8fd67eb332126b59b54c&p=452568&postcount=1 for an alternative. share | improve this answer ...
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Remote connect to clearDB heroku database

... @BKSpurgeon. I got it to work with phpMyAdmin with the default port (See stackoverflow.com/a/22092539/4900327) – Abhishek Divekar Feb 16 '17 at 16:47 ...
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Laravel - Eloquent or Fluent random row

... on the collection object not the sql query. the random function is run on php side – astroanu Oct 15 '15 at 6:13 @ast...
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How to upgrade PostgreSQL from version 9.6 to version 10.1 without losing data?

I'm using the PostgreSQL database for my Ruby on Rails application (on Mac OS X 10.9). 15 Answers ...
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How to change default timezone for Active Record in Rails?

... much! I'd been struggling with this as well. I have an inherited legacy PHP app that interacts with the same mysql database and stores all times as local; updating it to use UTC was not an option. What I had previously accomplished nothing: config.time_zone = 'Central Time (US & Canada)' c...
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Nginx url重写rewrite实例详解 - 更多技术 - 清泛网移动版 - 专注C/C++及内核技术

...; location / { root /data/test; index index.html; } } server { listen 80; server_name *.test.com; if ( $http_host ~* "^(.*)\.test\.com$") { set $domain $1; rewrite ^(.*) http://www.test...