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Run cron job only if it isn't already running
...'s just a shell script:
#!/bin/sh
if ps -ef | grep -v grep | grep doctype.php ; then
exit 0
else
/home/user/bin/doctype.php >> /home/user/bin/spooler.log &
#mailing program
/home/user/bin/simplemail.php "Print spooler was not running... Restarted."
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mysql_fetch_array()/mysql_fetch_assoc()/mysql_fetch_row()/mysql_num_rows etc… expects parameter 1 to
...ion:
NOTE The mysql_ functions are deprecated and have been removed in php version 7.
Check $result before passing it to mysql_fetch_array. You'll find that it's false because the query failed. See the mysql_query documentation for possible return values and suggestions for how to deal with th...
Delete all lines beginning with a # from a file
...
The opposite of Raymond's solution:
sed -n '/^#/!p'
"don't print anything, except for lines that DON'T start with #"
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How can I put strings in an array, split by new line?
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Instead of \n you can use the predefined constant PHP_EOL.
– Tim
Jul 19 '12 at 14:58
41
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How do short URLs services work?
...er would add TinyUrl to the history, which is not what you want. Also, the site that is redirected to will see the referrer (the site that you originally come from) as being the site the TinyUrl link is on (i.e., twitter.com, your own site, wherever the link is). This is just as important, so that s...
How to get the next auto-increment id in mysql
...om your SQL query.
Or
You can also use mysql_insert_id() to get it using PHP.
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Get current time in milliseconds in Python?
... rounds toward zero. Which is the same thing for positive number, but the opposite for negative. int(1.5) gives 1, int(-1.5) gives -1, math.floor(-1.5) gives -2 See: docs.python.org/2/library/stdtypes.html
– Skip Huffman
Jul 30 '15 at 14:24
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use localStorage across subdomains
...lStorage on browsers that can support it (anyone but IE). The problem is site.com and www . site.com store their own separate localStorage objects. I believe www is considered a subdomain (a stupid decision if you ask me). If a user was originally on site.com and decides to type in www . sit...
Visual Studio 2005/2012: How to keep first curly brace on same line?
... for this @Seb? I found a MS Guidelines document from 2005 that states the opposite convention for curly braces (next-line style): blogs.msdn.com/b/brada/archive/2005/01/26/361363.aspx. I myself prefer the "egyptian" style (same-line opening brace), and was hoping that C# followed this convention.....
Recommended website resolution (width and height)? [closed]
Is there any standard on common website resolution?
23 Answers
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