Add Singleton pattern code example#1041
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mhakkou wants to merge 4 commits intocodeguy:gh-pagesfrom
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drbyte
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Mar 12, 2026
jrfnl
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Mar 12, 2026
Co-authored-by: Chris Brown <code@drbyte.dev>
Changed the visibility of the __wakeup method from private to public.
jrfnl
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Mar 14, 2026
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This PR adds a PHP code example for the Singleton design pattern, which was previously marked as TODO: NEED NEW SINGLETON CODE EXAMPLE.
The example includes:
A protected constructor to prevent direct instantiation while allowing subclassing
A private __clone() method to prevent cloning of the instance
A private __wakeup() method to prevent unserializing of the instance
A getInstance() method using late static binding with new static() to support subclassing
Inline comments explaining the purpose of each method
A usage example demonstrating that two calls to getInstance() return the exact same instance