textarea的動態變量

Question

我想從一個textarea

<form> 
<textarea name="dynamicText">Hello my name is [name]</textarea> 
<button type="submit">Send</button> 
</form> 

PHP代碼實施例

$text = $_POST['dynamicText']; 
$name = "John Doe"; 
// i need some function ... 
echo $text; 
//Output --> Hello my name is John Doe 

輸出I想

Hello my name is John Doe 

Answer 1

試試這個：

<?php 

    if(isset($_GET['hello'])){ 
    echo $_GET['textarevalue']; 
    } 

?> 

    <form action="" method="get"> 
    <textarea name="textarevalue"></textarea> 
    <input type="submit" name="hello"/> 
    </form> 

Answer 2

定義動態變量嘗試這種

<?php 
    // store your dynamic name into variable 
    $name = "John Doe"; 
?> 
// show like this 
<form><texteare>Hello my name is <?php echo $name; ?></texarea>