title: PHP: How to tell if a string contains any special characters?
body: <p>I am using <code>pspell</code> to spell check some words. However if the word is something like G3523B it clearly is not a misspelled word but pspell changes it to GB. I would like somehow to qualify a word as a word before trying to spell check it. Maybe checking to see if the string contains any numbers or special characters.</p>
  
  <p><strong>So what is the best way to check a string for special chars or digits?</strong></p>
  
  <p>(if someone has a better idea to achieve what I am after please share)</p>