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Difference between single quotes and double quotes in Javascript [duplicate]
I know that in PHP, the only difference between double quotes and single quotes is the interpretation of variable inside a string and the treatment of escape characters.
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Shortcut to comment out a block of code with sublime text
...nt with
Ctrl+Shift+/
Source: http://www.sublimetext.com/forum/viewtopic.php?f=3&t=2967
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What is the common header format of Python files?
...ter implicitly, e.g. in a CGI context.
Next should be the docstring with a description. If the description is long, the first line should be a short summary that makes sense on its own, separated from the rest by a newline.
All code, including import statements, should follow the docstring. Otherwis...
PhpStorm text size
Is it possible to define a shortcut to increase/decrease size of code in PhpStorm, like what you can do in Notepad++ with CTRL + Mouse Wheel ?
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What are the ways to make an html link open a folder
...ery specific environment I know). In this instance, I use a html link to a php file and run:
shell_exec('cd C:\path\to\file');
shell_exec('start .');
This opens a local Windows explorer window.
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Get Image size WITHOUT loading image into memory
...f.fp.read(1)
i = i16(s)
if i in MARKER:
name, description, handler = MARKER[i]
# print hex(i), name, description
if handler is not None:
handler(self, i)
if i == 0xFFDA: # start of scan
rawmode = self.mo...
How to remove line breaks (no characters!) from the string?
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You can also use PHP trim
This function returns a string with whitespace stripped from the beginning and end of str. Without the second parameter, trim() will strip these characters:
" " (ASCII 32 (0x20)), an ordinary space.
"\t...
Is a Python dictionary an example of a hash table?
...
Yes, it is a hash mapping or hash table. You can read a description of python's dict implementation, as written by Tim Peters, here.
That's why you can't use something 'not hashable' as a dict key, like a list:
>>> a = {}
>>> b = ['some', 'list']
>>> h...
How to concatenate columns in a Postgres SELECT?
...
PHP's Laravel framework,
I am using search first_name, last_name Fields consider like Full Name Search
Using || symbol Or concat_ws(), concat() methods
$names = str_replace(" ", "", $searchKey); ...
How to sum all column values in multi-dimensional array?
...);
Example with array_walk_recursive() for the general case
Also, since PHP 5.5 you can use the array_column() function to achieve the result you want for the exact key, [gozhi], for example :
array_sum(array_column($input, 'gozhi'));
Example with array_column() for the specified key
If you ...