Stuff

   1.
      <?php
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        function returnStringRST($text, $openingMarker, $closingMarker) {
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         $openingMarkerLength = strlen($openingMarker);
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         $closingMarkerLength = strlen($closingMarker);
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         $result = "";
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         $position = 0;
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         if(($position = strpos($text, $openingMarker, $position)) !== false) {
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           if (($closingMarkerPosition = strpos($text, $closingMarker, $position)) !== false) {
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             $replaceThis = substr($text, $position-$openingMarkerLength, $closingMarkerPosition - $closingMarkerLength);
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             $text = ereg_replace($replaceThis, '', $text);
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             returnStringRST($text,  "<!--", "-->");
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           }
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         }
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         return $text;
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        }
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        $testText = "Before comment <!-- comment--> before comment2 <!-- comment2 --> after comment2";
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        $result = returnStringRST($testText, "<!--", "-->");
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        print($result);
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      ?>