Abstract
Ensure a class only has one instance and provide a global point of access to it.
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Design Patterns: Elements of Reusable Object-Oriented Software, p. 144
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© 2017 Kelt Dockins
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Dockins, K. (2017). Singleton. In: Design Patterns in PHP and Laravel. Apress, Berkeley, CA. https://doi.org/10.1007/978-1-4842-2451-9_7
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DOI: https://doi.org/10.1007/978-1-4842-2451-9_7
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