SV Infotech Interview Questions, Process, and Tips for Freshers

Print and echo are both used to output data in PHP, but echo is slightly faster and can output multiple values at once.

• Print is a language construct while echo is a language construct and a function.

• Echo can output multiple values at once while print can only output one value at a time.

• Echo is slightly faster than print because it does not return a value.

Different loops in PHP include for, while, do-while, and foreach loops.

• For loop: Used for iterating a specific number of times.

• While loop: Continues to execute as long as a specified condition is true.

• Do-while loop: Similar to while loop, but the condition is checked after the loop body is executed at least once.

• Foreach loop: Used for iterating over arrays or objects.

Different types of joins in SQL help combine data from multiple tables based on a related column between them.

• INNER JOIN: Returns rows when there is at least one match in both tables.

• LEFT JOIN: Returns all rows from the left table and the matched rows from the right table.

• RIGHT JOIN: Returns all rows from the right table and the matched rows from the left table.

• FULL JOIN: Returns rows when there is a match in one of th...read more

Position Absolute is positioned relative to its closest positioned ancestor, while Position Relative is positioned relative to its normal position.

• Position Absolute removes the element from the normal flow of the document, while Position Relative does not.

• Position Absolute is often used for overlaying elements on top of each other, while Position Relative is used for minor positioning adjustments.

• Position Absolute coor...read more

To export a database, you can use tools like phpMyAdmin or command line.

• Use phpMyAdmin to export database by selecting the database, clicking on 'Export', and choosing the desired format.

• Use command line to export database using commands like mysqldump.

• You can also use Drupal modules like Backup and Migrate to export database.

• Make sure to choose the correct format and settings for the export.