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(string)$yourObject; Here is what the above code is Doing: 1. The __toString() method is called when the object is used in a string context. 2. The __toString() method must return a string, otherwise a fatal error will be issued. 3. The __toString() method is not called when the object is used in a non-string context.

In order to send data to a databse securely use prepared statements otherwise you can get attacked by an SQL Injection easily. —- https://www.w3schools.com/php/php_mysql_prepared_statements.asp Here is what the above code is Doing: 1. Create a connection to the database 2. Create a prepared statement 3. Bind the parameters to the placeholders in the prepared statement…

if(!preg_match(‘/^(?=.*\d)(?=.*[A-Za-z])[0-9A-Za-z!@#$%]{8,12}$/’, $password)) { echo ‘the password does not meet the requirements!’; } Here is what the above code is Doing: 1. ^ – start of string 2. (?=.*\d) – must contain one digit from 0-9 3. (?=.*[a-z]) – must contain one lowercase characters 4. (?=.*[A-Z]) – must contain one uppercase characters 5. (?=.*[@#$%]) – must…

function secondHighest(array $arr) {          sort($arr);          echo $arr[sizeof($arr)-2]; }     secondHighest(array( 4, 9, 5, 2, 8, 0, 3, 22)); Here is what the above code is Doing: 1. We are sorting the array in ascending order. 2. Then we are printing the second last element of the array.