Home >Backend Development >PHP Tutorial >Teach you how to add variables to PHP strings_PHP Tutorial
Teach you how to add variables to PHP strings_PHP Tutorial
- WBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOriginal
- 2016-07-15 13:29:241102browse
We are using but need to add variable descriptions to the PHP string, although the following example has no errors:
<ol class="dp-xml">
<li class="alt">
<span><strong><font color="#006699"><span class="tag"><?</SPAN><SPAN class=tag-name>php</SPAN></FONT></STRONG><SPAN> </SPAN></SPAN><LI class=""><SPAN>$</SPAN><SPAN class=attribute><FONT color=#ff0000>temp</FONT></SPAN><SPAN> = </SPAN><SPAN class=attribute-value><FONT color=#0000ff>array</FONT></SPAN><SPAN>("one" =</SPAN><SPAN class=tag><STRONG><FONT color=#006699>></span></font></strong></span><span> 1, "two" =</span><span class="tag"><strong><font color="#006699">></font></strong></span><span> 2); </span>
</li>
<li class="alt"><span>// 输出：: The first element is 1 </span></li>
<li class=""><span>echo "The first element is $temp[one]."; </span></li>
<li class="alt">
<span></span><span class="tag"><strong><font color="#006699">?></font></strong></span><span> </span>
</li>
</ol>
But if the following echo statement is not enclosed in double quotes, an error will be reported, so it is recommended to use curly braces:
<ol class="dp-xml">
<li class="alt">
<span><strong><font color="#006699"><span class="tag"><?</SPAN><SPAN class=tag-name>php</SPAN></FONT></STRONG><SPAN> </SPAN></SPAN><LI class=""><SPAN>$</SPAN><SPAN class=attribute><FONT color=#ff0000>temp</FONT></SPAN><SPAN> = </SPAN><SPAN class=attribute-value><FONT color=#0000ff>array</FONT></SPAN><SPAN>("one" =</SPAN><SPAN class=tag><STRONG><FONT color=#006699>></span></font></strong></span><span> 1, "two" =</span><span class="tag"><strong><font color="#006699">></font></strong></span><span> 2); </span>
</li>
<li class="alt"><span>echo "The first element is {$temp["one"]}."; </span></li>
<li class="">
<span></span><span class="tag"><strong><font color="#006699">?></font></strong></span><span> </span>
</li>
</ol>
The above is the specific solution for adding variables to PHP strings.
Statement：
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Previous article：How to use PHP associative array query results_PHP tutorialNext article：How to use PHP associative array query results_PHP tutorial