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Can someone explain the dollar sign in Javascript?
... someone just put a dollar sign at the start for fun - perhaps they were a PHP programmer who did it out of habit, or something. In PHP, all variable names must have a dollar sign in front of them.
There is another common meaning for a dollar sign in an interpreter nowadays: the jQuery object, who...
How to change collation of database, table, column?
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You can run a php script.
<?php
$con = mysql_connect('localhost','user','password');
if(!$con) { echo "Cannot connect to the database ";die();}
mysql_select_db('db...
counting number of directories in a specific directory
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Nice! How would you do this $ ls -l .vim with PHP? Or how to get only the total, without the list. I mean, in this case get only 52?
– Pathros
Mar 8 '17 at 18:32
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How do I modify the URL without reloading the page?
...can understand the security risks with modifying the domain name (phishing etc.), but why don't browsers allow just the part of the URL to the right of the top level domain to be modifiable via script?
– Sunday Ironfoot
Apr 29 '10 at 15:58
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MySQL offset infinite rows
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use php 'PHP_INT_MAX' to avoid overflow effects.
– Karl Adler
Apr 7 '14 at 15:11
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NGINX: upstream timed out (110: Connection timed out) while reading response header from upstream
...eam, client:xxxxxxxxxxxxxxxxxxxxxxxxx", upstream: "fastcgi://unix:/var/run/php/php5.6-fpm.sock", host: "xxxxxxxxxxxxxxx", referrer: "xxxxxxxxxxxxxxxxxxxx"
So i have to adjust the fastcgi_read_timeout in my server configuration
location ~ \.php$ {
fastcgi_read_timeout 240;
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}
See:...
How to use the PI constant in C++
...t take this approach, we people make mistakes, rounding, copy&pasting, etc. I think using M_PI is the right approach.
– nacho4d
Jan 21 '14 at 1:47
11
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Styling HTML email for Gmail
...ing templates like those mentioned above from mailchimp, campaign monitor, etc. as they, as you have found, will not work in some email programs. This tool leaves your style section for the mail programs that will read it and puts all the styles inline to get more universal readability in the forma...
How do we control web page caching, across all browsers?
...etHeader("Expires", "0"); // Proxies.
Using ASP.NET-MVC
Response.Cache.SetCacheability(HttpCacheability.NoCache); // HTTP 1.1.
Response.Cache.AppendCacheExtension("no-store, must-revalidate");
Response.AppendHeader("Pragma", "no-cache"); // HTTP 1.0.
Response.AppendHeader("Expires", "0"); // Pro...
How to call an external command?
...can get the stdout, stderr, the "real" status code, better error handling, etc...).
The official documentation recommends the subprocess module over the alternative os.system():
The subprocess module provides more powerful facilities for spawning new processes and retrieving their results; usin...