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Is PHP compiled or interpreted?
...PHP compiler's job is to parse your PHP code and convert it into a form suitable for the runtime engine. Among its tasks:
Ignore comments
Resolve variables, function names, and so forth and create the symbol table
Construct the abstract syntax tree of your program
Write the bytecode
Depending on...
Logging levels - Logback - rule-of-thumb to assign log levels
... at WARN actually get logged on my deployment configured with ERROR?" The table says, NO.
"Will a logging code line that logs at WARN actually get logged on my deployment configured with DEBUG?" The table says, YES.
from logback documentation:
In a more graphic way, here is how the selection...
How to allow remote connection to mysql
... line without the # is this : sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES
– Leo
Feb 8 '13 at 19:11
2
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Best database field type for a URL
I need to store a url in a MySQL table. What's the best practice for defining a field that will hold a URL with an undetermined length?
...
When should I use Kruskal as opposed to Prim (and vice versa)?
...s an obscure term to use, for example what is the "average size" of a hash table? no idea.
– yairchu
Jul 29 '09 at 11:28
2
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How to print a dictionary line by line in Python?
... is even worse than that. Basically I've parsed out some data from an HTML table, and I happened to store it in a dictionary, and now I'm trying to take that dictionary data and put it into a DataFrame before I export it all to an Oracle table....it's pretty in depth I know, but the step that is hol...
How can I avoid running ActiveRecord callbacks?
... in any way, consider using a "shadow object" pointing to your existing db table. Like so:
class ImportedPerson < ActiveRecord::Base
self.table_name = 'people'
end
This works with every version of Rails, is threadsafe, and completely eliminates all validations and callbacks with no modificat...
Converting HTML string into DOM elements? [duplicate]
...so if you had a <td> you'd have to wrap the whole HTML string in <table><tbody><tr>...</tr></tbody></table>, write that to innerHTML and extricate the actual <td> you wanted from a couple of levels down.
...
DISTINCT for only one column
...ondition. I'm thinking the row numbers will be assigned to all rows in the table. This syntax is just a little beyond me. Any chance of an update that would guarantee one row with a particular email that meets the WHERE condition?
– Jonathan Wood
Feb 16 '11 at ...
What are good examples of genetic algorithms/genetic programming solutions? [closed]
...Joel: of course it did, but that's not why I think it would have been profitable. It would have made money because of the heavy bias towards buying instead of selling. A system that just bought S&P500 futures at random times between 1995 and 1999 (without any kind of GA nonsense going on) would ...