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Check if PHP session has already started
...sn't have session started. Therefore when I have session_start() on this script I sometimes get the error message for "session already started". For that I've put these lines:
...
how to get the current working directory's absolute path from irb
... directory's absolute path. Is this possible from irb? Apparently from a script it's possible using File.expand_path(__FILE__)
...
Rename all files in directory from $filename_h to $filename_half?
...n @Ishan Jain In fact it indicates the backend shell that must execute the script. sh and bash are different shells so it may affect the script behavior and syntax. Since the script uses a bash built-in string replacement you should add the header #!/bin/bash. This said, bash is normally the default...
How to create a jQuery function (a new jQuery method or plugin)?
...
From the Docs:
(function( $ ){
$.fn.myfunction = function() {
alert('hello world');
return this;
};
})( jQuery );
Then you do
$('#my_div').myfunction();
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ElasticSearch: Unassigned Shards, how to fix?
...
This little bash script will brute force reassign, you may lose data.
NODE="YOUR NODE NAME"
IFS=$'\n'
for line in $(curl -s 'localhost:9200/_cat/shards' | fgrep UNASSIGNED); do
INDEX=$(echo $line | (awk '{print $1}'))
SHARD=$(echo $line ...
Why does cURL return error “(23) Failed writing body”?
...erver ran out of disk space, in my case.
Check for it with df -k .
I was alerted to the lack of disk space when I tried piping through tac twice, as described in one of the other answers: https://stackoverflow.com/a/28879552/336694. It showed me the error message write error: No space left on devi...
Is either GET or POST more secure than the other?
...a single answer. You need to use HTTPS, HSTS, CSP, mitigate SQL injection, script injection (XSS), CSRF, and a gazillion of other things that may be specific to your platform (like the mass assignment vulnerability in various frameworks: ASP.NET MVC, Ruby on Rails, etc.). There is no single thing th...
Pass ruby script file to rails console
...oing something wrong, you do not have access to objects created inside the script. Any way to do that? The use case is to set up some objects, then interactively explore them. Is that possible?
– Dan Barron
Jan 21 '14 at 15:33
...
How to get all options of a select using jQuery?
...ions' object.
var myOpts = document.getElementById('yourselect').options;
alert(myOpts[0].value) //=> Value of the first option
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How to list imported modules?
...
If you want to do this from outside the script:
Python 2
from modulefinder import ModuleFinder
finder = ModuleFinder()
finder.run_script("myscript.py")
for name, mod in finder.modules.iteritems():
print name
Python 3
from modulefinder import ModuleFinder
f...