PHP Data Submission and Database Access

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Questions and Answers

Which HTTP request method is more appropriate for submitting data according to the text?

  • PUT
  • POST (correct)
  • DELETE
  • GET

What happens if a URL contains special characters without encoding?

  • Special characters are replaced with standard ones
  • The characters are ignored
  • The characters are displayed as they are
  • The URL will not work (correct)

In which part of an HTTP POST request are parameters embedded?

  • Response header
  • Request body (correct)
  • Query string
  • URL

What could be a potential issue with using a GET request for submitting data?

<p>Security vulnerability (C)</p> Signup and view all the answers

Why is using a POST request more suitable for private data submission?

<p>POST requests transmit data securely (C)</p> Signup and view all the answers

What is a limitation of URLs in relation to data submission?

<p>Limited length capacity (A)</p> Signup and view all the answers

Which superglobal array in PHP contains information about files uploaded with the web request?

<p>$_FILES (C)</p> Signup and view all the answers

What does the 'REQUEST_METHOD' element of the global $_SERVER array in PHP indicate?

<p>Type of request being processed (GET or POST) (C)</p> Signup and view all the answers

In PHP, which superglobal array holds parameters passed to any type of request?

<p>$_REQUEST (D)</p> Signup and view all the answers

What is the purpose of the 'value' attribute in HTML forms?

<p>Set the default value to be submitted if a control is selected (A)</p> Signup and view all the answers

What is the function of PHP superglobal arrays?

<p>Contain details about the current request, server, etc. (A)</p> Signup and view all the answers

What kind of arrays are PHP superglobal arrays?

<p>Associative arrays (D)</p> Signup and view all the answers

What is the purpose of using regular expressions in PHP?

<p>Pattern matching in text (A)</p> Signup and view all the answers

Which statement accurately describes the role of mysqli_close($conn); in PHP?

<p>Close the connection to the server and database (B)</p> Signup and view all the answers

What privilege is required to create or delete a MySQL database?

<p>CREATE privileges (C)</p> Signup and view all the answers

Which element must be at the end of a text pattern for it to match with 'com' using regular expressions?

<p>$ (A)</p> Signup and view all the answers

What does the expression '[^a-z]' represent in regular expressions?

<p>Matches anything except lowercase letters (D)</p> Signup and view all the answers

What is the purpose of '[[:alnum:]]+' in a regular expression?

<p>Match any alphanumeric character at least once (C)</p> Signup and view all the answers

What SQL statement is used to add new records to a MySQL table?

<p>INSERT INTO (C)</p> Signup and view all the answers

In SQL, how should string values inside the SQL query be treated?

<p>Quoted (C)</p> Signup and view all the answers

What does the * character represent in a SQL SELECT statement?

<p>Select all columns (D)</p> Signup and view all the answers

In SQL, what must be done when inserting NULL values?

<p>Not quoted (A)</p> Signup and view all the answers

Which SQL statement is used to create a table in a MySQL database?

<p>CREATE TABLE (B)</p> Signup and view all the answers

What is the purpose of the PRIMARY KEY in a MySQL table creation?

<p>Uniquely identifies each record in the table (B)</p> Signup and view all the answers

What is one type of validation mentioned in the text?

<p>Preventing blank values for email addresses (D)</p> Signup and view all the answers

What is a function of server-side validation according to the text?

<p>It ensures truly secure validation (D)</p> Signup and view all the answers

In the context of form validation, why might client-side validation lead to a better user experience?

<p>It checks input before the form is submitted (C)</p> Signup and view all the answers

What is a reason for using both client-side and server-side validation together?

<p>To balance between security and user experience (A)</p> Signup and view all the answers

How does the text suggest testing for valid credit card numbers?

<p>Matching the number against a predefined algorithm or pattern (A)</p> Signup and view all the answers

Why is it necessary to ensure that values fit together in a form?

<p>To prevent inconsistencies in user-provided data (D)</p> Signup and view all the answers

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