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Auto updating copyright notice

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__A lot of websites are victim of outdated copyright notices, 2008, 2009 even 2000.__

This function is designed to combat this annoyance, resulting in proper copyright notices. With **valid years**, and also valid **Typography**, separating the dates with an **En dash** and using **character entities**.

Using this function in your footer will create an output string similar as:
*****
<code>2008–2011 © </code> for $startYear = 2008
*****
<code>2011 © </code> if the $startYear is equal(or bigger) compared to the current year, note that if an invalid date(higher) is passed as the argument the function will still return the current year
*****
<code>Our company 2011 © </code> for $startYear = "Our company" **(not advised)**
*****
<code>2009–2011 © Our company</code> for $startYear = 2009 and $txt = "Our company" **(advised)**

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Copy this code and paste it in your HTML 
  1. // Author: Jeroen Ransijn
  2. // Auto updating copyright notice
  3. function auto_copyright_notice($startYear,$txt) {  
  4.   // this line will compare the startYear with the current year, if this is the same only display the startYear
  5.   // if this is false, both show: $startYear 'en dash(Study Typography you nerd!)' $currentYear
  6.   // note that if $starYear is bigger then the current year, 
  7.   // or isn't an integer this function will still return the current year
  8.   $year = ($startYear >= date("Y") ? date("Y") : $startYear . "&#8211;". date("Y"));		
  9.   return $year . "&#160;&#169;&#160;" . $txt;		
  10. }

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