Before Applying job posting in any websites or recruiting agencies or sending resumes to job recruiters or any other employment website you need to improve your skills on general knowledge, Aptitude, Puzzles, logical reasoning, general english, database, programming as per your job profile. Job recruiters or mostly preferring job candidates who are having more stuff in those categories mentioned above. So improving more skills on your job profile always boost up your career and your performance. Even hiring companies and job recruiters who are looking for many job posting websites actually they are looking and filtering on these activities. In these php section you need to update more questions to perform well in front of job recruiters and companies. php Interview questions are most important to score in interview, Update all questions to score well in all rounds in job interview.

Php interview questions and answers

31)
What is strings ?

String variables are used for a value that contains character strings. Some of the most common functions and operators used to manipulate strings in PHP. After we create a string we can manipulate it. A String can be used directly in a function or it can be stored in a variable.

32)
When is Concatenation Operator ?

There is only one string operator in PHP. The concatenation operator (.) is used to put two string values ogether. To concatenate two variables together, use the dot (.) operator.

33)
What is include() ?

The include() statement includes and evalutes the specified file. When a file in included, the code it contains inherits the variable scope of the line on which the include occurs. Any variables available at that line in the calling file will be available within the called file, from thepoint forward.

34)
What is require() ?

The require function is identical to include(), except that it handles errors differently. The include() function generates a warning (but the script continue execution) while the require() function generates a fatal error (and the script execution will stop after the error). The require statement includes and evaluates the specific file.

35)
What is require_once() ?

The require_once() statement includes and evaluates the specified file during the execution of the script. This is a behavior similar to the require() statement, with the only difference being that if the code from a file has already been included, it will not be included again.