PHPWrite a matchSSN functionWrite a function matchSSN($str) that takes a string representing a social security number as a parameter. The function should return true if the SSN is valid, and false if it is not.An SSN consists of 9 digits that are sometimes, but not always, separated by dashes between the 3rd and 4th digits and between the 5th and 6th digits (e.g. 123-45-6789). Use regular expressions in your solution (e.g. preg_match). ```php```In this PHP script titled "code.php," a function named `matchSSN` is defined. It takes a single input parameter, `$str`. The comment within the function's body suggests that the implementation should utilize `preg_match`, a PHP function used for performing pattern matching with regular expressions. The actual solution code is yet to be added, indicating an instructional or starting point for learning how to extract or validate Social Security Numbers (SSNs) using regular expressions in PHP.

A Social Security number is a nine-digit number issued to U.S. citizens, permanent residents, and…

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Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Write a matchSSN function

Write a function matchSSN($str) that takes a string representing a social security number as a parameter. The function should return true if the SSN is valid, and false if it is not.

An SSN consists of 9 digits that are sometimes, but not always, separated by dashes between the 3rd and 4th digits and between the 5th and 6th digits (e.g. 123-45-6789). Use regular expressions in your solution (e.g. preg_match).