将 php 变量回显到 innerhtml 中
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echo a php variable into innerhtml
提问by fahimeh
I have a problem in my code, I want to put $meaning variable into innerhtml of my di,here is my code: searchinput.php:
我的代码有问题，我想将 $meaning 变量放入我的 di 的 innerhtml 中，这是我的代码：searchinput.php：
<form action = "search.php" method = "post">
<input name="word" id="word" type="text" maxlength="255" />
<label for="word">word:</label></br></br>
<input type="submit" value="search" />
</form>
<div id = "meaning"> </div>
search.php:
搜索.php：
<?php
$db = mysql_connect("localhost", "root", "");
mysql_select_db("project",$db);
$word = isset($_POST["word"]) ? $_POST["word"] : "";
$result = mysql_query("select meaning from vocabulary where word = '$word'");
$fetchmeaning = mysql_fetch_array($result);
$meaning = $fetchmeaning['meaning'];
?>
now I want to have this:
现在我想要这个：
document.getElementById('meaning').innerhtml = $meaning; !!!!
how can I impelemt this?
我怎样才能做到这一点？
回答by mithunsatheesh
Yes. Start a script tag after the definition of $meaningand put the below code in it.
Like.
是的。在定义之后启动一个脚本标签$meaning并将下面的代码放入其中。喜欢。
document.getElementById('meaning').innerHTML = "<?PHP echo $meaning; ?>" ;
Also Can't you think of directly echo ing the value of $meaninginside the divwithout even using javascript? like
难道你不能想到甚至不使用javascript就直接echo ing$meaning里面的值div吗？喜欢
<div id = "meaning"><?PHP echo $meaning; ?></div>
You can also use the short form <?=$meaning?>.
您也可以使用简写形式<?=$meaning?>。
回答by Amir Md Amiruzzaman
<div id="errorMessage"></div>
<?php
if (isset($_GET['q'])) {
echo '<script type="text/javascript">
document.getElementById("errorMessage").innerHTML = "User name or Password is incorrect";
</script>';
}
?>
