为什么这个字符串回显0？

Question

当我尝试回显此字符串时显示"0"

我在我的本地服务器上试过它,http://writecodeonline.com/php/两次都发生了同样的事情.这在我之前从未发生过,它是什么,我该如何解决？提前致谢.

<?PHP
$info = '
                <div id="gallery_option_###number###">
                    <a href="#galleryButton###number###" onclick="gallery_button_down(' + "'###number###'" + ')">
                        Burn Notice
                    </a>
                    <div id="info_option_###number###">
                        <!--
                        [title]title[|title]
                        [description]test[|description]
                        [image]url[|image]
                        -->
                    </div>
                </div>';
                echo $info;
?>

Answer 1

您正在遵循JavaScript字符串连接方式.

读:

http://php.net/manual/en/language.operators.string.php

<?php
$a = "Hello ";
$b = $a . "World!"; // now $b contains "Hello World!"

$a = "Hello ";
$a .= "World!";     // now $a contains "Hello World!"
?>