需要在引号内回显变量

Question

我有这段代码：

<?php
    $title = the_title();
    $field['url'] = "<iframe src='http://xxx.xx/embed?t='" . echo $title . "width='640' height='360' allowscriptaccess='always' allowfullscreen='true' scrolling='no' frameborder='0'></iframe>;"
    ?>  

我需要. echo $title .，但它不起作用，我的网站甚至没有加载。那么还有其他可能回应变量$title吗？谢谢

Answer 1

有一个名为sprintf

的强大功能

$title = the_title();
$field['url'] = sprintf('<iframe src="http://xxx.xx/embed?t=%s" width="640" height="360" allowscriptaccess="always" allowfullscreen="true" scrolling="no" frameborder="0"></iframe>;"', $title);

Answer 2

尝试删除回声并移动;在引号之外

<?php
$title = the_title();
$field['url'] = "<iframe src='http://xxx.xx/embed?t='" . $title . "width='640' height='360' allowscriptaccess='always' allowfullscreen='true' scrolling='no' frameborder='0'></iframe>";
?>