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olleolleolle merged 1 commit into from
Apr 9, 2025
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README.md: Document "Get form values" #61

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20 changes: 9 additions & 11 deletions README.md
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Expand Up @@ -32,21 +32,19 @@ Or install it yourself as:

### Get form values

Given a form with the content `field_name=123`:

```ruby
require "cgi"
cgi = CGI.new
value = cgi['field_name'] # <== value string for 'field_name'
# if not 'field_name' included, then return "".
fields = cgi.keys # <== array of field names

# returns true if form has 'field_name'
cgi.has_key?('field_name')
cgi.has_key?('field_name')
cgi.include?('field_name')
```
value = cgi['field_name'] # => "123"
cgi['flowerpot'] # => ""
fields = cgi.keys # => [ "field_name" ]

CAUTION! cgi['field_name'] returned an Array with the old
cgi.rb(included in Ruby 1.6)
cgi.has_key?('field_name') # => true
cgi.include?('field_name') # => true
cgi.include?('flowerpot') # => false
```

### Get form values as hash

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