This statement is false. Although echo and print are used as language constructs in PHP, they are not functions. They are language constructs provided by PHP for outputting content. The main difference is that echo has no return value, while print returns a value of 1. Both echo and print are used without parentheses and are not considered functions. Learn more: https://www.php.net/manual/en/function.echo.php https://www.php.net/manual/en/function.print.php

All of the given options are true about the echo statement in PHP. Echo does not have a return value; it simply outputs the specified string(s). Echo can output multiple parameters at once, allowing you to concatenate multiple strings or variables together. Echo is slightly faster and more efficient than print, as it does not have a return value to handle. Learn more: https://www.php.net/manual/en/function.echo.php

The do...while loop in PHP will always execute the block of code at least once, regardless of the condition. After the first execution, the condition is checked. If the condition evaluates to true, the loop will repeat. If the condition evaluates to false, the loop will terminate. This loop guarantees the execution of the block of code at least once, even if the condition is initially false. It is useful when you want to ensure that a specific code block runs at least once, regardless of the condition. Learn more: https://www.php.net/manual/en/control-structures.do.while.php

The phpinfo() function can be used to check the installed version of PHP, among other things. When this function is called, it displays a large amount of information about the current state of PHP, including details about PHP compilation options and extensions, the PHP version, server information and environment, etc. Learn more: https://www.php.net/manual/en/function.phpinfo.php

In PHP, a class is the blueprint from which individual objects are created. It defines the structure, properties, and methods that objects of that class will have. The correct option is "Blueprint." A class provides the template or blueprint for creating objects, which are instances of that class. The other mentioned options (Prototype, Instance, Model) are related to objects but do not specifically refer to the class itself. For further details, refer to the PHP documentation on classes and objects: http://php.net/manual/en/language.oop5.php

When using mail functions in PHP, you might encounter potential issues such as email delivery problems, spam filtering, and SMTP server configuration problems. Email delivery issues can occur due to factors like incorrect recipient addresses, server blacklisting, or misconfigured DNS records. Spam filters may mark legitimate emails as spam, impacting email deliverability. SMTP server configuration problems, including incorrect server settings or authentication issues, can also hinder email sending. It's important to address these issues by properly configuring SMTP servers, ensuring valid recipient addresses, and following best practices to improve email deliverability.

In PHP, $_POST is a superglobal array that is used to collect form data after submitting an HTML form with POST as the method. The POST method sends form data in the body of the HTTP request, making it suitable for handling sensitive information or large amounts of data. When the form is submitted, the data is accessible through the $_POST superglobal. Learn more: https://www.php.net/manual/en/reserved.variables.post.php

To execute a PHP script from the command line, you can use the command php script.php, where script.php is the name of your PHP file. This command runs the PHP interpreter, reads and executes the code in the specified file. It allows you to run PHP scripts outside of a web server environment, enabling command-line applications or batch processing tasks.

To filter multiple inputs in a PHP script, you can use either the filter_input_array() function or the filter_var_array() function. Both functions allow you to specify the filters and input types to apply to the multiple inputs. You can loop through the input values and apply the desired filters and validations individually as well. All of the mentioned options are valid approaches to filter multiple inputs in PHP. For further details, refer to the PHP documentation on filter_input_array() (http://php.net/manual/en/function.filter-input-array.php) and filter_var_array() (http://php.net/manual/en/function.filter-var-array.php).

In PHP, you can define a destructor in a class using the __destruct() method. The correct option is "Using the __destruct() method." This special method is automatically called when an object is no longer referenced or explicitly destroyed. It is used to perform any necessary cleanup tasks or deallocate resources held by the object. For further details, refer to the PHP documentation on destructors: https://www.php.net/manual/en/language.oop5.decon.php#language.oop5.decon.destruct