Exam 3: Manipulating Strings

The opposite of the explode() function is the implode() function.

The escape character combined with one or more other characters is called a(n) ____________________.

All text strings must begin and end with double quotation marks.

The metacharacter, ____, specifies an anchor at the end of the line.

The ____________________ quantifier specifies that the preceding character in the pattern is optional.

The similar_text() function returns the number of ____ to strings have in common.

To include a literal hyphen (-) in a character before the closing bracket or it will interpreted as a ____________________.

The ____ function converts any occurrence of (&), ("), ('), (<), and (>) to their equivalent HTML character entity.

PHP support Perl Compatible Regular Expressions (PCRE).

The ____ function converts all of the letters in a string to capital letters.

A(n) ____________________ metacharacter in a regular expression pattern specifies that the pattern must contain a value where the metacharacter is located.

The strtok() function breaks a program into functions.

To insert a horizontal tab, use the escape sequence \t.

The concatenation operator in PHP is a ____.

The ____________________ function is can be used to check for palindromes because it reverses the characters in a string.

The escape sequence to insert a carriage return is \r.

The concatenation operator in PHP is a ____________________.

In PHP, the escape character is the ____.

The concatenation operator (.) combines several string variables and literal strings and assigns the new value to another variable.

The ucfirst() function and the lcfirst() function only change the ____________________ character of a string.