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The ______ statement in PHP is not actually a function, so you can use it without parentheses.

  • echo
  • print
  • printf
  • display
The print statement in PHP is not actually a function, so you can use it without parentheses. It is a language construct rather than a function. This allows you to use it like a statement without the need for parentheses. However, if you choose to use parentheses with print, it will still work without any issues. Learn more: https://www.php.net/manual/en/function.print.php
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Comments in PHP code are ignored by the ______.

  • PHP Interpreter
  • User
  • Web Browser
  • Web Server
Comments in PHP code are ignored by the PHP interpreter. This means that they don't affect the execution of the code, and they are not sent to the client's web browser. They are solely for the benefit of people reading the code. Comments can be used to explain what your code does, why it does it, and anything else that might be helpful to know. The other options, user, web browser, and web server, all see the results of the PHP code after it has been interpreted, but they don't see the comments. Learn more: https://www.php.net/manual/en/language.basic-syntax.comments.php
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The value of a class constant in PHP can be changed after it is defined.

  • TRUE
  • FALSE
  • nan
  • nan
The value of a class constant in PHP cannot be changed after it is defined. Once a constant is assigned a specific value, it remains the same throughout the execution of the script. Constants are considered as read-only values. It's important to note that attempting to modify a constant's value will result in a runtime error. To maintain the immutability of constant values, it is recommended to define them with the desired value and avoid any attempts to modify them later. To know more, refer to: http://php.net/manual/en/language.constants.php
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The fread() function is used to read the contents of a file in PHP.

  • TRUE
  • FALSE
  • nan
  • nan
Absolutely! In PHP, the fread() function is used to read the contents of a file. It takes the file handle obtained from fopen() as the first parameter and the maximum number of bytes to read as the second parameter. The function returns the content of the file as a string.
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You are writing a PHP script and you need to access a global variable from within a function. How would you do this using the $GLOBALS superglobal?

  • Use the 'global' keyword followed by the variable name to declare it as global within the function.
  • Access the variable directly using the $GLOBALS array and the variable name as the key.
  • Assign the variable to a local variable inside the function and use it within the function.
  • Create a new instance of the variable within the function and assign it the value of the global variable.
To access a global variable within a function using the $GLOBALS superglobal, you can use the $GLOBALS array and the variable name as the key. The $GLOBALS array is a superglobal that contains all global variables in the global scope. By accessing the variable directly using $GLOBALS['variable_name'], you can retrieve its value within the function. Learn more: https://www.php.net/manual/en/reserved.variables.globals.php
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In PHP, a multidimensional array can only contain indexed arrays.

  • TRUE
  • FALSE
False. In PHP, a multidimensional array can contain both indexed arrays and associative arrays as its elements. While indexed arrays are commonly used in multidimensional arrays, associative arrays can also be used to create multidimensional structures. This flexibility allows for the representation of complex data relationships, where values can be accessed using either numeric indices or string keys. Multidimensional arrays in PHP provide a versatile way to organize and manipulate data in a structured manner. Learn more: https://www.php.net/manual/en/language.types.array.php#language.types.array.syntax
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The function_exists() function in PHP is used to check if a function has been defined.

  • Function
  • Variable
  • Class
  • Constant
The function_exists() function in PHP is used to check if a function has been defined. By passing the function name as a string parameter, the function checks if the function exists and is callable, returning true if it does. The other mentioned options (Variable, Class, Constant) are not specifically used with the function_exists() function. For more details, refer to the PHP documentation on function_exists(): http://php.net/manual/en/function.function-exists.php
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You have a PHP script and you need to open a file, write to it, and then close it. How would you do this?

  • Use the fopen() function to open the file and obtain a file handle, use the fwrite() function to write content to the file, and then use the fclose() function to close the file.
  • Use the file_put_contents() function to directly write content to the file without the need for explicit file handle and closing operations.
  • Use the readfile() function to read the file and write its contents to the output buffer.
  • Use the include() function instead of the fopen() function.
To open a file, write to it, and then close it in PHP, you would use the fopen() function to open the file and obtain a file handle. Then, you can use the fwrite() function with the file handle to write content to the file. Finally, you would use the fclose() function to close the file and release the associated resources. Proper file handling includes opening, writing, and closing the file in a structured manner.
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You need to understand if the value of a class constant in PHP can be changed after it is defined. What would be your conclusion?

  • It can be changed
  • It cannot be changed
  • It depends on the code
  • None of the above
The value of a class constant in PHP cannot be changed after it is defined. Once a constant is assigned a specific value, it remains the same throughout the execution of the script. Constants are considered as read-only values. Attempting to modify a constant's value will result in a runtime error. To maintain the immutability of constant values, it is recommended to define them with the desired value and avoid any attempts to modify them later. To know more, refer to: http://php.net/manual/en/language.constants.php
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In PHP, you can define a destructor in a class using the __destruct() keyword.

  • keyword
  • function
  • method
  • property
In PHP, you can define a destructor in a class using the __destruct() keyword. The correct option is "keyword." The __destruct() method is a special method that 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
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