请教各位前辈一个问题。
现在有一个文本框，为了使其在submit提交之后内容不消失，于是我这样写：
<input type="text" name="test" value="<?=$_POST['test'];?>" />
可是，我又打算在打开页面时给此文本框一个默认值（就得给value初始化一个值），这两个问题怎么兼容？
回复讨论(解决方案)
跳转网页的提交，你就得自己赋值给文本框 的value
ajax的提交，不把文本框的value赋值为空就行了
<input type="text" name="test" value="<<?= empty($_POST['test'])?$default:$_POST['test'];?>" />
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