PHP串联 [英] PHP concatenation

问题描述

我正在尝试使用某些PHP，但似乎无法弄清楚以下内容。

I am trying to get into some PHP and I can't seem to figure out the following.

我可以使用串联的PHP创建字符串：

I can create a string by means of PHP with concatenation:

echo 'This ' . 'string ' . 'was ' . 'made ' . 'with concatenation.' . "\n";

但是如果您想使用变量来做呢？ （我猜想WP的功能可以称为变量。）我在这里很迷茫。以下操作无效。或至少是我的文本编辑器抛出未知错误。

But what if you want to do this with a variable? (I am guessing WP's functions can be called variables.) I am quite lost here. The following does not work. Or at least, my text editor throws an unknown error.

<?php
if ( is_404() ) {
    echo "<script src='" . get_stylesheet_directory_uri(); . "/sm/script/soundmanager2-nodebug-jsmin.js'></script>
<script>
soundManager.setup({
  url: '" . get_stylesheet_directory_uri(); . "/sm/swf/',
  onready: function() {
    var mySound = soundManager.createSound({
      id: 'aSound',
      url: 'http://www.mysite.com/sound.mp3',
      volume: '25'
    });
    mySound.play();
  },
  ontimeout: function() {

  }
});
</script>"
}
?>

推荐答案

在这里出错：

rc='" . get_stylesheet_directory_uri(); . "/s

句子中间有; 。同样在字符串的末尾，您没有;

You have a ; in the middle of your sentence. Also at the end of your string you don't have a ;

正确的语法

<?php
if ( is_404() ) {
    echo "<script src='" . get_stylesheet_directory_uri() . "/sm/script/soundmanager2-nodebug-jsmin.js'></script>
<script>
soundManager.setup({
  url: '" . get_stylesheet_directory_uri() . "/sm/swf/',
  onready: function() {
    var mySound = soundManager.createSound({
      id: 'aSound',
      url: 'http://www.mysite.com/sound.mp3',
      volume: '25'
    });
    mySound.play();
  },
  ontimeout: function() {

  }
});
</script>";
}
?>

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