Which object-oriented pattern would you use to implement a class that must be instantiated only once for the entire lifespan of a script?

Showing live article 6 of 30 in channel 59358680
Article Details:

Author:
Language: English
Channel Number: 59358680
Article Number: 6
Date: February 27, 2012, 10:09 pm
URL: http://chaitanyalella.weebly.com/objective-questions/which-object-oriented-pattern-would-you-use-to-implement-a-class-that-must-be-instantiated-only-once-for-the-entire-lifespan-of-a-script
GUID: http://chaitanyalella.weebly.com/objective-questions/which-object-oriented-pattern-would-you-use-to-implement-a-class-that-must-be-instantiated-only-once-for-the-entire-lifespan-of-a-script