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5 Written Questions

5 Matching Questions

  1. abs()
  2. number_format()
  3. strip_tags()
  4. strcasecmp()
  5. ksort()
  1. a removes html tags from a string
  2. b sorts an array by keys
  3. c returns a number string in comma format
  4. d returns 0 if two strings are equal, ignoring case
  5. e returns absolute value of an argument

5 Multiple Choice Questions

  1. number, string, or mixed -> floating point number with letters discarded
  2. returns true or false
  3. returns a string trimmed of leading and trailing whitespace
  4. a loop that takes 3 expressions: initialization, test, and iteration
  5. used for adding multiple elements to an array as comma delimited 'key => value' lists

5 True/False Questions

  1. array_search()used for adding multiple elements to an array as comma delimited 'key => value' lists

          

  2. str_replace()converts an integer or float into a string

          

  3. krsort()inverse of ksort()

          

  4. count()accepts an array, returns number of elements

          

  5. array_key_exists()accepts 2 args: key, array -> true or false

          

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