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How can I get useful error messages in PHP?
Quite often I will try and run a PHP script and just get a blank screen back. No error message; just an empty screen. The cause might have been a simple syntax error (wrong bracket, missing semicolon), or a failed function call, or something else entirely.
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Git fetch remote branch
My colleague and I are working on the same repository. We've branched it into two branches, each technically for different projects, but they have similarities, so we'll sometimes want to commit back to the * master from the branch .
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How to overcome “datetime.datetime not JSON serializable”?
...h requires no dependencies.
As you are using mongoengine (per comments) and pymongo is a dependency, pymongo has built-in utilities to help with json serialization:
http://api.mongodb.org/python/1.10.1/api/bson/json_util.html
Example usage (serialization):
from bson import json_util
import json...
How to prevent sticky hover effects for buttons on touch devices
I have created a carousel with a previous and a next button that are always visible. These buttons have a hover state, they turn blue. On touch devices, like iPad, the hover state is sticky, so the button stays blue after tapping it. I don't want that.
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PostgreSQL error: Fatal: role “username” does not exist
...en done with operating as system user postgres.
Or execute the single command createuser as postgres with sudo, like demonstrated by drees in another answer.
The point is to use the operating system user matching the database role of the same name to be granted access via ident authentication. pos...
Eclipse “Invalid Project Description” when creating new project from existing source
... that project from the source code before, but then I deleted that project and deleted its whole directory, before adding the source code directory again. I tried everything like cleaning and restarting, but nothing worked. I looked in my workspace directory, but there are no traces for the old proj...
How to concatenate strings of a string field in a PostgreSQL 'group by' query?
...ving it at the end, you might want to make your own concatenation function and substitute it for the "textcat" above. Here is one I put together and tested on 8.3.12:
CREATE FUNCTION commacat(acc text, instr text) RETURNS text AS $$
BEGIN
IF acc IS NULL OR acc = '' THEN
RETURN instr;
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Are HTTP cookies port specific?
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The current cookie specification is RFC 6265, which replaces RFC 2109 and RFC 2965 (both RFCs are now marked as "Historic") and formalizes the syntax for real-world usages of cookies. It clearly states:
Introduction
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For historical reasons, cookies contain a number of se...
Is Javascript a Functional Programming Language?
Just because functions are first class objects, there are closures, and higher order functions, does Javascript deserve to be called a Functional Programming language? The main thing I think it lacks is Pure Functions, and it doesn't 'feel' like other functional languages, like lisp (although thats...
Python code to remove HTML tags from a string [duplicate]
...', text)
However, as lvc mentions xml.etree is available in the Python Standard Library, so you could probably just adapt it to serve like your existing lxml version:
def remove_tags(text):
return ''.join(xml.etree.ElementTree.fromstring(text).itertext())
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