Without escape slash example:

He said, "Hello Gavin"

Using escape slash example:

This is Gavin\'s webpage.

Explanation

The escape slash (backslash) is used in PHP to allow special characters to be included inside strings without ending the string early. For example, if you want to include a quotation mark inside a string that is already using quotes, the backslash prevents PHP from misreading it as the end of the string.