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Preferred method to store PHP arrays (json_encode vs serialize)
...() you need to add extra parameter to keep UTF-8 characters untouched: json_encode($array, JSON_UNESCAPED_UNICODE) (otherwise it converts UTF-8 characters to Unicode escape sequences).
JSON will have no memory of what the object's original class was (they are always restored as instances of stdClas...
Creating your own header file in C
...
foo.h
#ifndef FOO_H_ /* Include guard */
#define FOO_H_
int foo(int x); /* An example function declaration */
#endif // FOO_H_
foo.c
#include "foo.h" /* Include the header (not strictly necessary here) */
int foo(int x) /* Functi...
How to install therubyracer gem on 10.10 Yosemite?
...all
bundle exec rake clean build binary
gem install pkg/libv8-3.16.14.3-x86_64-darwin-12.gem #note that libv8 version may change, so tab through files in pkg/, also remember to use the one with version specified
then just bundle your project gems
this is the only way it worked for me on 10.10 (ru...
Entity Framework - Invalid Column Name '*_ID"
...er I figured my problem out). If you have some error related to OtherTable_ID when you are retrieving Table, go to your OtherTable model and make sure you don't have an ICollection<Table> in there. Without a relationship defined, the framework will auto-assume that you must have a FK to Othe...
Android: View.setID(int id) programmatically - how to avoid ID conflicts?
...same id number in the same hierarchy, then a call to findViewById([repeated_id]) would return the first view set with that one repeated id. That's what I meant.
– kaneda
Jun 19 '13 at 23:33
...
Naming convention for unique constraint
...primary key and foreign key have commonly used and obvious conventions ( PK_Table and FK_Table_ReferencedTable , respectively). The IX_Table_Column naming for indexes is also fairly standard.
...
Python memory usage of numpy arrays
...
b.__sizeof__() is equivalent to sys.getsizeof(b)
– palash
Feb 27 at 7:02
1
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In PHP, can you instantiate an object and call a method on the same line?
...So, if you declared a class like this :
class Test {
public function __construct($param) {
$this->_var = $param;
}
public function myMethod() {
return $this->_var * 2;
}
protected $_var;
}
You can then declare a function that returns an instance of that ...
How to get object length [duplicate]
...ize method, as well as a toArray method, which may get you what you need.
_.size({one : 1, two : 2, three : 3});
=> 3
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Primary key or Unique index?
.... Example:
CREATE TABLE table1 (foo int, bar int);
CREATE UNIQUE INDEX ux_table1_foo ON table1(foo); -- Create unique index on foo.
INSERT INTO table1 (foo, bar) VALUES (1, 2); -- OK
INSERT INTO table1 (foo, bar) VALUES (2, 2); -- OK
INSERT INTO table1 (foo, bar) VALUES (3, 1); -- OK
INSERT INTO...