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PHP delimiter generation of multi-line strings

WBOY
WBOYOriginal
2016-07-28 08:26:122431browse

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>
<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>

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>
<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>
').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.

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