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You need to delete a cookie in your PHP script. How would you do this?

  • setcookie() with expiry 0
  • unset($_COOKIE['cookie_name'])
  • delete_cookie()
  • remove_cookie()
To delete a cookie in PHP, you can use the setcookie() function with an expiration time in the past or set it to zero. This will invalidate the cookie and remove it from the user's browser. Alternatively, you can use the unset() function to remove a specific cookie value from the $_COOKIE superglobal array. More details: http://php.net/manual/en/function.setcookie.php
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What should we do to be able to export data into an Excel file?

  • Use a PHP library such as PhpSpreadsheet or PHPExcel
  • Use the exportToExcel() function provided by PHP
  • Use the saveAsExcel() function provided by PHP
  • There is no built-in functionality in PHP to export data to Excel
To export data into an Excel file using PHP, you can use a PHP library such as PhpSpreadsheet or PHPExcel. These libraries provide APIs for creating and manipulating Excel files in various formats. They allow you to generate Excel files, set cell values, apply formatting, and perform other Excel-related operations. By using these libraries, you can export data from PHP into Excel files with ease. It's important to note that you need to include the library files and follow the library's documentation to properly use their features. For example, you can use PhpSpreadsheet to create and save Excel files by following its documentation and using appropriate functions and methods.
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In PHP, the ______ function is used to read the contents of a file.

  • readfile()
  • file_get_contents()
  • fread()
  • include()
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. This function returns the content of the file as a string. Alternatively, you can use file_get_contents() to read the entire file into a string or other file reading functions depending on your specific use case.
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Which of the following are requirements for installing PHP?

  • A web server
  • A high-speed internet connection
  • A Linux operating system
  • A graphics processing unit (GPU)
To install PHP, a web server is required as PHP is primarily a server-side scripting language. While having an internet connection can be helpful, especially for downloading the necessary software or accessing documentation, it is not strictly necessary for the installation itself. PHP can be installed on a variety of operating systems, not just Linux. Learn more: https://www.php.net/manual/en/install.php
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You have a PHP script and you need to move an uploaded file to a specific directory. How would you do this?

  • move_uploaded_file()
  • copy()
  • move_file()
  • attach_file()
To move an uploaded file to a specific directory in PHP, you can utilize the move_uploaded_file() function. This function moves the file to the desired directory. Check out: http://php.net/manual/en/function.move-uploaded-file.php
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PHP supports both single-line and multi-line comments.

  • TRUE
  • FALSE
PHP does indeed support both single-line and multi-line comments. Single-line comments can be denoted by double slashes (//) or a hash symbol (#), while multi-line comments can be enclosed between /* and */. Comments are essential for leaving notes, explaining code, or temporarily disabling blocks of code. They are ignored by the PHP interpreter, making them purely informational for developers. Learn more: https://www.php.net/manual/en/language.basic-syntax.comments.php
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The json_decode() function is used to decode a JSON object into a PHP array.

  • method
  • function
  • property
  • class
The json_decode() function in PHP is used to decode a JSON object into a PHP array. It is a standalone function that takes a JSON-encoded string and converts it into a PHP value, typically an array or an object. The correct option is "function." For more information, consult the PHP documentation on json_decode(): http://php.net/manual/en/function.json-decode.php
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In PHP, strings can be defined using either single quotes or double quotes.

  • TRUE
  • FALSE
This statement is true. In PHP, strings can be defined using either single quotes ('') or double quotes (""). Both single quotes and double quotes are used to delimit string literals. The choice between single quotes and double quotes depends on the specific requirements and whether variable interpolation or escape sequences are needed. Learn more: https://www.php.net/manual/en/language.types.string.php
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You have a PHP script and you need to store information about a user session. How would you do this using a superglobal?

  • Use the $_SESSION superglobal.
  • Use the $_COOKIE superglobal.
  • Use the $_SERVER superglobal.
  • Use the $_GLOBALS superglobal.
The correct option is 1. To store information about a user session in PHP, you would use the $_SESSION superglobal. The $_SESSION superglobal is an associative array that allows you to store and access session variables. It is used to maintain session data across multiple page requests for a specific user. By storing data in $_SESSION, you can preserve user-specific information throughout their interaction with your web application. The session data is stored on the server and can be accessed across different pages or scripts as long as the session is active. Learn more: https://www.php.net/manual/en/reserved.variables.session.php
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The == operator in PHP is a type of ______ operator.

  • Comparison
  • Arithmetic
  • Assignment
  • Logical
The == operator in PHP is a type of comparison operator. It is used to compare two values for equality. The == operator checks if the values on both sides are equal, regardless of their data types. For example, $num1 == $num2 will return true if $num1 is equal to $num2, and false otherwise. Learn more: https://www.php.net/manual/en/language.operators.comparison.php
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