(PHP 5 >= 5.2.0, PHP 7)
ReflectionFunctionAbstract::getExtension — Gets extension info
public ReflectionFunctionAbstract::getExtension ( ) : ReflectionExtension
Get the extension information of a function.
This function is currently not documented; only its argument list is available.
This function has no parameters.
The extension information, as a ReflectionExtension object.
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https://www.php.net/manual/en/reflectionfunctionabstract.getextension.php