如何在html的双引号内转义PHP？

Question

My code is

 echo '<textarea name="" class="widefat" style="width:100%; height: 100px;" value="<?php ?>"></textarea>';

How can I use php inside the value

Looking forward

Thanks

Answer 1

As @quentin mentioned, you're trying to echo a php tag, which you cannot. To use a variable inside a string, without messing with quotes, I normally use heredoc, i.e.:

<?php
$value = 100;
echo <<< EOF
<textarea name="" class="widefat" style="width:100%; height: 100px;" value="{$value}"></textarea>
EOF;