Most Important PHP Interview Questions and Answers

Most Important PHP Interview Questions and Answers

PHP Interview Questions and Answers

Question: 
What’s the difference between the include() and require() ?
Answer:
The Purpose of both is include() and require() is "to include a specific file"
The require() function is identical to include(), except that it handles errors differently. If an error occurs, the include() function generates a warning, but the script will continue execution. The require() generates a fatal error, and the script will stop.

Question: 
How can we get the IP address of the client?
Answer:
$_SERVER["REMOTE_ADDR"]; gives the IP address from which the request was sent to the web server

Question:
 Is multiple inheritance supported in PHP ?
Answer:
 NO, multiple inheritance is not supported by PHP

Question: 
What is the difference between unset and unlink ?
Answer:
 unlink is used to remove/delete files.
 unset is used to unset a variable