Question

php代码中怎么将登陆按钮替换成图片啊

代码如下
<td rowspan="3" bgcolor="#1356A4">
<input id="enter" name="enter" type="submit" value="登录"></td>
<td rowspan="8">

Answer 1

<input id="enter" name="enter" type="submit" value="登录">

<input id="enter" name="enter" type="image" value="登录" src='' />

Answer 2

<?

$str = '<img src=""></img>dfdgfdg幅度<img src=""></img>dfdgfdg ';
$url = "";

$str = preg_replace('|(<img[^/]*>.*</img>)|Usi', "<a href=\"$url\">$1</a>", $str);
$str = preg_replace('|(<img[^/]*/\s*>)|Usi', "<a href=\"$url\">$1</a>", $str);
echo $str;

#如果每张图片都不一样就得改造成preg_replace_callback