Which of the following function returns the number of characters in a string variable?A.count($variable)B.len($variable)C.strcount($variable)D.strlen($variable)

The function LEN() returns the total number of characters in a string

Create a simple function named characterCount that takes a string and count the characters in the string. The function will return the number of characters in the given string.Use the skeleton file, to develop the function.FUNCTION characterCount(str IN VARCHAR2)   Function name : characterCountparameters  :  str datatype VARCHAR2Function return type : NumberNote:Do not change the function nameDo not change the argument count and orderDo not change the output text.You can query the table records using select statementDelimiter / is mandatory. If delimiter is missed, then while executing nothing will be displayedWhile executing, if you get WARNING: FUNCTION CREATED WITH COMPILATION ERRORS, then use SHOW ERRORS to display the errors in the function.Instructions:1. Create the function successfully2. Once the function is created, check the functionality of the function using appropriate select call3. DO NOT submit the select statement. Submit only the CREATE FUNCTION query.Sample Input and Output:If we execute the function with "HELLO" it should return 5.SubmitPreviously Executed Queries

Which built-in PHP function can be used to measure the length of a string?str_len()len()strlen()string_length()

What is the value stored in the given variable when returned by the below function call?int myCount = countLetters("Coding in C++ is fun.", 'c');int countLetters(string phrase, char letter) { int numLetters = 0; for (int i = 0; i < phrase.length(); i++) { if (phrase[i] == letter) { numLetters++; } } return numLetters;}

Define the function count_substring(string, substring) that finds how many times the substring appears in the given string.Example:string = "Python is a powerful language. I want to learn Python"substring = "Python"Expected Output:2