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214 quizzes found.

Consider the following piece of code; After running it, the value of $result would be:

<?php$arr = array(3 => "First", 2=> "Second", 1=> "Third");list (, $result) = $arr;?>
  1. First
  2. Second
  3. Third
  4. This piece of code will not run, but fail with a parse error.

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In standard SQL-92, which of these situations do not require or cannot be handled through the use of an aggregate SQL function?

  1. Calculating the sum of all the values in a column
  2. Determining the minimum value in a result set
  3. Grouping the results of a query by one or more fields
  4. Calculating the sum of all values in a column and retrieving all the values of another column that is not part of an aggregate function or GROUP BY clause
  5. Determining the mean average of a column in a group of rows

Choose 2 answers

Multidimensional arrays can be sorted using the ______ function.

  1. ksort
  2. array_multisort
  3. sort
  4. usort

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When using the default session handler files for using sessions, PHP stores session information on the harddrive of the webserver. When are those session files cleaned up?

  1. PHP will delete the associated session file when session_destroy() is called from within a script
  2. When the function session_cleanup() is called, PHP will iterate over all session files, and delete them if they exceeded the session timeout limit
  3. When the function session_start() is called, PHP will iterate over all session files, and delete them if they exceeded the session timeout limit
  4. When the function session_start() is called, PHP will sometimes iterate over all session files, and delete them if they exceeded the session timeout limit
  5. Session files are never removed from the filesystem, you need to use an automated script (such as a cronjob) to do this

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What is the order of parameters in the mail() function?

  1. subject, to address, extra headers, body
  2. to address, subject, extra headers, body
  3. to address, subject, body, extra headers
  4. subject, to address, body, extra headers

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