Learning never exhausts the mind

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This quick PHP snippet will return the first sentence of a specified string. Very useful for generating post or page abstracts, extracts or descriptions.
function firstPunctuation($string)
{
  $excl = strpos($string,"!");
  $stop = strpos($string,".");
  
  if ($excl === false) $excl = 9999;
  if ($stop === false) $stop = 9999;
  
  if ($excl < $stop) return $excl + 1;
  if ($excl > $stop) return $stop + 1;

}

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