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How do I implement a callback in PHP?
... that acts like a function pointer, referencing a function or class method for future invocation. This has allowed some elements of functional programming since PHP 4. The flavors are:
$cb1 = 'someGlobalFunction';
$cb2 = ['ClassName', 'someStaticMethod'];
$cb3 = [$object, 'somePublicMethod'];
// t...
Check if a user has scrolled to the bottom
...
As usual you get there before me. Anyway, to the OP, if you have a container of posts, use it's ID instead of "window", also, you might want to change the last .height() to scrollHeight
– Christian
Oct 9 '10 at ...
Reusable library to get human readable version of file size?
...ssing the above "too small a task to require a library" issue by a straightforward implementation:
def sizeof_fmt(num, suffix='B'):
for unit in ['','Ki','Mi','Gi','Ti','Pi','Ei','Zi']:
if abs(num) < 1024.0:
return "%3.1f%s%s" % (num, unit, suffix)
num /= 1024.0
...
How to make an app's background image repeat
...Try with this too: android:gravity="clip_horizontal" --- it avoid image deformation
– Felipe
Sep 30 '11 at 21:37
...
PHP function to get the subdomain of a URL
...just do explode(...)[0] instead of using shift these days? Not been PHPing for several years..
– Tor Valamo
Nov 9 '12 at 15:23
...
How to access parent Iframe from JavaScript
...which calls a same domain page.
My problem is that I want to access some information from this parent Iframe from this called page (from JavaScript). How can I access this Iframe?
...
Compile (but do not run) a Python script [duplicate]
...mpile a Python script without running it? I just want to check the script for syntax errors. I was hoping for a simple command line switch, but I didn't see anything in python --help . I'd like an answer for both Python 2 and Python 3.
...
Google Sheets API Setup · App Inventor 2 中文网
...ument
2. Share the Google Sheets Document
3. Record Relevant Information
The Spreadsheet ID
The Sheet Name
The Grid ID
Note: If you are only going to read from the Google Sheets document, and not
edit or write data to the d...
Checking if array is multidimensional or not?
...y($arr[0]);
But, the most efficient general way I could find is to use a foreach loop on the array, shortcircuiting whenever a hit is found (at least the implicit loop is better than the straight for()):
$ more multi.php
<?php
$a = array(1 => 'a',2 => 'b',3 => array(1,2,3));
$b = arr...
What is the size of ActionBar in pixels?
...d where this is defined:
The attribute name itself is defined in the platform's /res/values/attrs.xml
The platform's themes.xml picks this attribute and assigns a value to it.
The value assigned in step 2 depends on different device sizes, which are defined in various dimens.xml files in the platf...