PHPの解析後に改行が入るのはなぜですか?

PHP の解析後に改行が表示されるのはなぜですか?

PHP コード

<!--

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public function javascript()
     {
          ?>
          <script type="text/javascript">
          function init_meet()
          {
               var cr = new Array();

               <?
               if($this->data != null)
               {
                    foreach($this->data as $i)
                    {                    
               ?>
                         name = "<?php echo $i["code"]; ?>";
                         cr[name]            = new Array();
                         cr[name]["code"]    = '<?=$i["code"]?>';
               <?
                    }
               }     
               ?>
               return cr;
          }
          </script>     
          <? 
     }
     

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HTML コード

<!--

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-->
var cr = new Array();

                                        name = "2001
";
                         cr[name]            = new Array();
                         cr[name]["code"]    = '2001
';
                                        name = "2002
";
                         cr[name]            = new Array();
                         cr[name]["code"]    = '2002
';
                                        name = "2003
";
                         cr[name]            = new Array();
                         cr[name]["code"]    = '2003
';
                                        name = "2004
";
                         cr[name]            = new Array();
                         cr[name]["code"]    = '2004
';
                                        name = "2005
";
                         cr[name]            = new Array();
                         cr[name]["code"]    = '2005
';
                                        name = "2006
";
                         cr[name]            = new Array();
                         cr[name]["code"]    = '2006
';
                                        name = "2007
";
                         cr[name]            = new Array();
                         cr[name]["code"]    = '2007
';
                                        name = "2008
";
                         cr[name]            = new Array();
                         cr[name]["code"]    = '2008
';
                              return cr;

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