associative

#!/usr/bin/env python # -*- coding: utf-8 -*- from sqlalchemy import create_engine connection = create_engine('mysql://user:passwd@localhost:3306/db').connect() result = connection.execute("select * from table") for v in result: print v['id'] print v['name'] connection.close() how i can get TABLES COLUMNS NAMES dynamically? in this case id and name You can either find the columns by calling result.keys() or you can access them through calling v.keys() inside the for loop. Here's an example using items() : for v in result: for column, value in v.items(): print('{0}: {1}'.format(column, value))

I want to access the index 'memo' in the associative array in PHP below $variables["thelistitems"]; print_r($variables["thelistitems"]); Output Array ( [0] => Array ( [productid] => prod:c6dbdd62-dc13-6421-5a94-c8cd871a59d3 [memo] => dummy [taxable] => 0 [unitweight] => 0 [unitcost] => 450.02 [unitprice] => 445.02 [quantity] => 1 ) ) What you essentially have is an array of associative arrays. So to access the first memo, it's $variables["thelistitems"][0]["memo"] To access each memo, you'd do something like this foreach($variables["thelistitems"] as $listitem) { $memo = $listitem["memo"]; }

My array: $data = array('two' => 2, 'one' => 1, 'three' => 3); Now, with when I iterate the array, the first value that will come up will probably be $data['two'] // = 2 @ index[0] right? What if I want to move the $data[1] to the position of $data[0] ? To rephrase: How do I make the array look like this (so that 'one' comes up at $data[0]) $data = array('one' => 1, 'two' => 2, 'three' => 3 Why do I need this? I use code igniter, the table->generate built-in function takes an assoc array and creates a table but offers no method of arranging the columns. This is why I would like to move the

ok, so I have an object like: var myobject = { "field_1": "lorem ipsum", "field_2": 1, "field_2": 2, "field_2": 6 }; as you see there are duplicate names in the object, but with different values. If i go through it like (using jQuery): $.each(myobject, function(key, value) { console.log(key); console.log(myobject[key]); console.log(myobject[value]); } key - returns the correct key myobject[key] - returns the name for that key myobject[value] - returns the last elements', with that name, value meaning for field_2 it will return 6, though it'll print it 3 times, as it repeats 3 times in the

I have an associative operation >> . The problem is that its cost linearly depends on the size of its left operand. So an expression formed by a sequence of n applications of >> like a >> a >> a >> a >> a >> ... >> a it has quadratic cost in terms of n , because by default infix operators are left-associative . How to make it right-associative so that the cost of such an expression is kept linear in terms of n ? Petr Pudlák I found a solution. Scala reference says in section 6.12.3 Infix Operations : The associativity of an operator is determined by the operator’s last character. Operators