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Check if PHP session has already started
I have a PHP file that is sometimes called from a page that has started a session and sometimes from a page that doesn't have session started. Therefore when I have session_start() on this script I sometimes get the error message for "session already started". For that I've put these lines:
...
PHP - include a php file and also send query parameters
...ever, it sounds like you are using this include like some kind of function call (you mention calling it repeatedly with different arguments).
In this case, why not turn it into a regular function, included once and called multiple times?
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How to submit a form with JavaScript by clicking a link?
...it </a>
</form>
All ways
Whatever way you choose, you have call formObject.submit() eventually (where formObject is the DOM object of the <form> tag).
You also have to bind such an event handler, which calls formObject.submit(), so it gets called when the user clicked a specif...
How do I update an entity using spring-data-jpa?
...e object your found. These changes will be flushed to the database automatically at the end of transaction, so that you don't need to do anything to save these changes explicitly.
EDIT:
Perhaps I should elaborate on overall semantics of JPA. There are two main approaches to design of persistence A...
Understanding Python super() with __init__() methods [duplicate]
...that child classes that may be using cooperative multiple inheritance will call the correct next parent class function in the Method Resolution Order (MRO).
In Python 3, we can call it like this:
class ChildB(Base):
def __init__(self):
super().__init__()
In Python 2, we are required...
How to dismiss notification after action has been clicked
...
When you called notify on the notification manager you gave it an id - that is the unique id you can use to access it later (this is from the notification manager:
notify(int id, Notification notification)
To cancel, you would call...
JavaScript private methods
...his way. Well, actually you can, but it will not work if some other method calls the private, it will call the original version of the method and you also can't call the parent method. So far I have not found a good way to declare private methods that work well with inheritance. This and the perform...
How to do constructor chaining in C#
...s base()
For "why?":
code reduction (always a good thing)
necessary to call a non-default base-constructor, for example:
SomeBaseType(int id) : base(id) {...}
Note that you can also use object initializers in a similar way, though (without needing to write anything):
SomeType x = new SomeTy...
Android Fragment no view found for ID?
...the other way round. Was trying to add to the main fragment container with calling getChildFragmentManager(). Pointing this out solved it for me. Thanks +1
– speedynomads
Sep 4 '13 at 14:23
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PHP - Extracting a property from an array of objects
... the memory is growing up. If you write a programm with infinite loops and call the array_map with create_function in it you will always get an Out of memory... error sometime. So don't use create_function and use array_map(function($o) { return $o->id; }, $objects);
– algor...