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Which one of the following methods in the exception class, is used to get a nested exception object?

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Which one of the following methods in the exception class, is used to get a nested exception object?

(a) getPrevious()

(b) getCode()

(c) getFile()

(d) getLine()

This question was posed to me during an interview for a job.

Origin of the question is Object Advanced Features in section Objects and Databases in PHP of PHP

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Right option is (a) getPrevious()

The explanation: getCode() – Get the code integer that was passed to the constructor. getFile() – Get the file in which the exception was generated. getLine() – Get the line number at which the exception was generated.

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