How can I truncate a string to the first 20 words in PHP?

Question

How can I truncate a string after 20 words in PHP?

Answer 1

function limit_text($text, $limit) {     if (str_word_count($text, 0) > $limit) {         $words = str_word_count($text, 2);         $pos   = array_keys($words);         $text  = substr($text, 0, $pos[$limit]) . '...';     }     return $text; }  echo limit_text('Hello here is a long sentence that will be truncated by the', 5); 

Outputs:

Hello here is a long ... 

Answer 2

Change the number 3 to the number 20 below to get the first 20 words, or pass it as parameter. The following demonstrates how to get the first 3 words: (so change the 3 to 20 to change the default value):

function first3words($s, $limit=3) {     return preg_replace('/((\w+\W*){'.($limit-1).'}(\w+))(.*)/', '${1}', $s);    }  var_dump(first3words("hello yes, world wah ha ha"));  # => "hello yes, world" var_dump(first3words("hello yes,world wah ha ha"));   # => "hello yes,world" var_dump(first3words("hello yes world wah ha ha"));   # => "hello yes world" var_dump(first3words("hello yes world"));  # => "hello yes world" var_dump(first3words("hello yes world.")); # => "hello yes world" var_dump(first3words("hello yes"));  # => "hello yes" var_dump(first3words("hello"));  # => "hello" var_dump(first3words("a")); # => "a" var_dump(first3words(""));  # => ""