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ucwords
Posted on July 13th, 2009 1 commentThe ucwords() function turns the first character of each word in a string to upper-case, if the first character is alphabetic.
PHP
echo ucwords("ruby is easy."); => // Ruby Is Easy.
Ruby doesn’t have a function which can capitalize all the words in a string - so to accomplish this it’s a little bit harder. You need to split the string into words, then capitalize the first character of each word, and then finally join all the words back into a string.
Ruby
puts "ruby is easy.".split(' ').select {|w| w.capitalize! || w }.join(' '); => # Ruby Is Easy.
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ucfirst
Posted on July 7th, 2009 No commentsThe ucfirst function returns a string, with the first character capitalized - only if the first character is alphabetic.
PHP
echo ucfirst("ruby is great!"); => // Ruby is great!
Ruby
puts "ruby is great!".capitalize => # Ruby is great!
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strtoupper
Posted on March 31st, 2009 No commentsReturns the argument provided with all alphabetic characters converted to uppercase.
PHP
echo strtoupper('Ruby is pure OO'); // => RUBY IS PURE OO
Ruby
puts 'Ruby is pure OO'.upcase; # => RUBY IS PURE OO
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array_change_key_case
Posted on March 28th, 2009 1 commentThis function changes all keys in an array by returning an array with all keys from argument lowercased or uppercased. Numbered indices are left as is.
PHP
$input_array = array('FirSt' => 1, 'SecOnd' => 4); print_r( array_change_key_case($input_array, CASE_UPPER) ); // => array('FIRST' => 1, 'SECOND' => 4);
To replicate this functionality in Ruby, we need to use a Hash object, since arrays in Ruby don’t use associative key/value pairs.
Ruby
hash = {'FirSt' => 1, 'SecOnd' => 4} result = hash.inject({}) do |hash, keys| hash[keys[0].upcase] = keys[1] hash end p result # => { 'FIRST' => 1, 'SECOND' => 4 }
PHP, Ruby arrays, hash, keys, lower case, upper case


