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16 years ago
Taking a bunch of the earlier comments together, you can synthesize a nice short and reasonably efficient quoted_printable_encode function like this:



Note that I put this in my standard library file, so I wrap it in a !function_exists in order that if there is a pre-existing PHP one it will just work and this will evaluate to a noop.



<?php

if ( !function_exists("quoted_printable_encode") ) {

  /**

  * Process a string to fit the requirements of RFC2045 section 6.7.  Note that

  * this works, but replaces more characters than the minimum set. For readability

  * the spaces aren't encoded as =20 though.

  */

  function quoted_printable_encode($string) {

    return preg_replace('/[^\r\n]{73}[^=\r\n]{2}/', "$0=\r\n", str_replace("%","=",str_replace("%20"," ",rawurlencode($string))));

  }

}

?>



Regards,

Andrew McMillan.
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