PHP delimiter generation of multi-line strings-PHP Tutorial-php.cn

PHP delimiter generation of multi-line strings

WBOY

Release： 2016-07-28 08:26:12

Original

2443 people have browsed it

It is suitable for more complex strings, generating HTML strings or XML or other functions. It will treat each line as each line of text. However, in some special cases, it cannot be seen but the real existence, such as HTML code, will be ignored. Line break

Symbol:
<<<

Syntax:

<code><<<变量(无<span>$符</span>)
(开头无空格)第一行 
<span>XXX</span><span>XXX</span><span>XX</span>(开头无空格)变量(无<span>$符</span>)</code>

Copy after login

<code><span><span><?php</span><span>$s</span> =<span><<<s
<p>1</p>
<p>2</p>
<p>3</p>
s;<span>echo</span><span>$s</span>;
<span>?></span><pre class="brush:php;toolbar:false"><code>1

2

3</code>

Copy after login

Example 2:

<code><span><?php</span><span>$_data</span> =<span><<<data
<?xml version="1.0" encoding="UTF-8"?>
<note>
    <to>George</to>
    <from>老三</from>
    <heading>Reminder</heading>
    <body>Don't forget the meeting!</body>
</note>
data;</span><span>$myfile</span> = fopen(<span>"file.txt"</span>, <span>"w"</span>) <span>or</span><span>die</span>(<span>"Unable to open file!"</span>); 
fwrite(<span>$myfile</span>, <span>$_data</span>);
fclose(<span>$myfile</span>);
<span>?></span></code>

Copy after login

<code>file.txt内容:
<span><?xml version="1.0" encoding="UTF-8"?></span><span><<span>note</span>></span><span><<span>to</span>></span>George<span></<span>to</span>></span><span><<span>from</span>></span>老三<span></<span>from</span>></span><span><<span>heading</span>></span>Reminder<span></<span>heading</span>></span><span><<span>body</span>></span>Don't forget the meeting!<span></<span>body</span>></span><span></<span>note</span>></span></code>

Copy after login

').addClass('pre-numbering').hide(); $(this).addClass('has-numbering').parent().append($numbering); for (i = 1; i ').text(i)); }; $numbering.fadeIn(1700); }); });

The above introduces the generation of PHP delimiter multi-line strings, including aspects of the content. I hope it will be helpful to friends who are interested in PHP tutorials.