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PHP语法异常，折腾一天了，求高手帮忙
- WBOYOriginal
- 2016-06-13 12:13:42853browse
PHP语法错误，折腾一天了，求高手帮忙。
我写一个无限级分类下拉功能，到下面这个代码老是报错，折腾一天了，求高手看看。
<br /> $str_select.= "<option value=" .$row['classid'] if ($classid == $row['classid']){ echo "selected"}.">" .str_repeat( "-" ,$depth) . $row['classname']."</option>"; //字符串构建<br />错误提示：Parse error: syntax error, unexpected T_IF
------解决思路----------------------
$str_select .= ""; //字符串构建
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