strstr

• We can find the first occurrence of a string in Ruby by using the String#match method. This will return a MatchData object which we can inspect to retrieve more information about the matched characters.

  PHP

  print strstr("name@example.com", "@");
  // => @example.com

  Ruby

  match = "name@example.com".match('@')
  puts match[0] + match.post_match
  # => @example.com

  The strstr function is often used to simply check for the presence of a substring within a string. This is usage is accomplished in Ruby by using the String#include? method.

  PHP

  $result = (strstr("name@example.com", "@") !== false);
  var_export($result);
  // => true

  Ruby

  puts "name@example.com".include?("@")
  # => true

  see also

  • preg_match
  • strpos
  • substr
  • stristr
  • strrchr

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