title: A small issue with PhP on Mac's text editor
body: <p>I am editing my PhP files with Text Edit on my Mac.
  The PhP files are source code I got from some tutorial.
  The subtle issue I was able to notice is that the apostrophe ' on the source file is not the same apostrophe I type with my keyboard.
  Also, when I try to type inside an existing string with the "source apostrophe" I notice the last letter goes outside the string and I am sure this is not a typo from my side.</p>
  
  <p>When I put my keyboard apostrophe in the PhP file I get a 500 internal server error when requesting the PhP file.
  If I just copy paste a "source apostrophe" I don't get the internal error.</p>
  
  <p>Any idea what is going on here?</p>
  
  <p>EDIT: As funny as it may be, I have put the 3 apostrophe here. The first one is from the source code(most left) the other two are from my keyboard.</p>
  
  <blockquote>
    <p>' ' `</p>
  </blockquote>