Question:- How to delete file in PHP?
Answer:- The unlink() function is used to delete a file in PHP. bool unlink (string $filename)
Question:- What is the method to execute a PHP script from the command line?What is the method to execute a PHP script from the command line?
Answer:- You should just run the PHP command line interface (CLI) and specify the file name of the script to be executed as follows.
Question:- How to upload file in PHP?
Answer:- The move_uploaded_file() function is used to upload file in PHP. bool move_uploaded_file ( string $filename , string $destination )
Question:- How to download file in PHP?
Answer:- How to download file in PHP?
Question:- How can you send email in PHP?
Answer:- The mail() function is used to send email in PHP. bool mail($to,$subject,$message,$header);
Question:- How do you connect MySQL database with PHP?
Answer:- There are two methods to connect MySQL database with PHP. Procedural and object-oriented style.
Question:- How to create connection in PHP?
Answer:- The mysqli_connect() function is used to create a connection in PHP. resource mysqli_connect (server, username, password)
Question:- How to create database connection and query in PHP?
Answer:- Since PHP 4.3, mysql_reate_db() is deprecated. Now you can use the following 2 alternatives. mysqli_query() , PDO::_query()
Question:- How can we increase execution time of a PHP script?
Answer:- By default, the maximum execution time for PHP scripts is set to 30 seconds. If a script takes more than 30 seconds, PHP stops the script and returns an error. You can change the script run time by changing the max_execution_time directive in the php.ini file. When a script is called, set_time_limit function restarts the timeout counter from zero. It means, if default timer is set to 30 sec, and 20 sec is specified in function set_time_limit(), then script will run for 45 seconds. If 0sec is specified in this function, script takes unlimited time.
Question:- What are the different types of errors in PHP?
Answer:- There are 3 types of error in PHP. 1. Notices:These are non-critical errors. These errors are not displayed to the users. 2. Warnings:These are more serious errors, but they do not result in script termination. By default, these errors are displayed to the user. 3. Fatal Errors:These are the most critical errors. These errors may cause due to immediate termination of script.
Question:- How to stop the execution of PHP script?
Answer:- The exit() function is used to stop the execution of PHP script.
Question:- What are the encryption functions in PHP?
Answer:- CRYPT() and MD5()
Question:- What is htaccess in PHP?
Answer:- The .htaccess is a configuration file on Apache server. You can change configuration settings using directives in Apache configuration files like .htaccess and httpd.conf.
Question:- Explain PHP explode() function.
Answer:- The PHP explode() function breaks a string into an array.