WordPress how to set the post excerpt length to 100 characters and 200 characters

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Example I want use the_excerpt in two locations. On functions.php I add 

function new_excerpt_length($length) {
    return 100;
}
add_filter('excerpt_length', 'new_excerpt_length');

Question.

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How to make another function to accept another the_excerpt will be 200 characters?

Or another solutions.

How to make something like this.. Dynamic the_excerpt()

  1. Option 1 = the_excerpt() limit to 100 chars
  2. Option 2 = the_excerpt() limit to 200 chars
  3. Option 3 = the_excerpt() limit to 300 chars
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  1. Have you read through the WordPress documentation for the_excerpt()

    http://codex.wordpress.org/Function_Reference/the_excerpt

    It appears that you can only override the the excerpt_length() with new_excerpt_length() via filters as you mentioned.

    So perhaps you can modify existing the_excerpt function to take a parameter $length, where the default value = null. If you are familiar with PHP you know that you don’t have to pass any parameters to the_excerpt(), in which case $length will default to null and function as if $length was never passed to it, which means all current usages of the_excerpt() will continue working as normal. and if you want print your excerpt at a different length then call the_excerpt(someOtherLength);

    It will look something like this. 

    function the_excerpt($length=null) {
     if($length != null) {
         // ignore default excerpt length with $length 
         // print the excerpt to $length 
     } else {
    // prints the excerpt to standard length specified by excerpt_length()
     }
}

    Let me know if you have any problems.