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echo 显示命令
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Update time : 2018-12-24 11:10:00
echo 是在PHP里面最常用的一个输出、显示功能的命令。
我们可以让他显示任何可见的字符。
<?php
echo 123;
?>
<?php
$iphone = 6088;
echo $iphone;
?>
你可以对着做做实验。等下一章，我们讲数据类型的时候，我教大家输出中文和用PHP显示网页内容。
单词：
*echo * 读音： ['ekoʊ]
解释：发出回声；回响。
功能解释：输出、显示
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