html内嵌php出现乱码，最简单的php程序也通不过,该怎么解决

html内嵌php出现乱码，最简单的php程序也通不过

PHP code

<!--

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  <title>connect.php</title>



    <strong>This is true.</strong>
<a href="<?php%20echo%20www.baidu.com;%20?>">ÕâÊǸö³¬Á´½Ó</a>

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rrrrrr

hhhhhh

$b){ $a++; } $c=$a+$b; echo "a+b=".$c; ?>

PHP code

<!--

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--><?php $a=8;
    $b=4;
    if($a>$b){
            $a++;
        }
        $c=$a+$b;
        echo "a+b=".$c;
?>

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PHP code

<!--

Code highlighting produced by Actipro CodeHighlighter (freeware)
http://www.CodeHighlighter.com/

-->    <strong>This is true.</strong>
<a href="<?php%20echo%20www.baidu.com;%20?>">超级连接</a>

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PHP code

<!--

Code highlighting produced by Actipro CodeHighlighter (freeware)
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-->

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rrrrrr

hhhhhh

PHP code

<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
  <title>connect.php</title>



    <strong>This is true.</strong>
<a href="<?php%20echo%20www.baidu.com;%20?>">超级链接</a>

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rrrrrr

hhhhhh

$b){ $a++; } $c=$a+$b; echo "a+b=".$c; ?>