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computer science FR question. mostly tested. with little snippet to tackle it

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A string is simply a collection of text—letters, numbers, special characters, or a combination thereof. Strings can be manipulated, cut, trimmed, truncated, spliced, and concatenated with ease in PH ... P. $fname = "Peter" ; $lname = "MacIntyre" ; $string = "The first name of the author of this book is $fname and his last name is $lname"; echo $string ; Here, in the creation of the $string variable, the code makes reference to two other variable names, and PHP interpolates (inserts) their contents. We can then echo out the $string variable. We can also accomplish this using single quotes, but we would have to do some concatenation with the period operator, because using single quotes do not allow for variable expansion (variable content insertion). The following code uses the single quote approach: $fname = "Peter" ; $lname = "MacIntyre" ; $string = 'The first name of the author of this book is ' . $fname . ' and his last name is ' . $lname ; echo $string ; [Show More]

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