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php 输出双引号"与单引号''的方法

Jun 13, 2016 pm 12:16 PM
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在php 编程中双引号"与单引号'是字符串与字符表现形式,那么我们要输出它怎么做呢,下面我们就来看个简单的输出单双引号的实例吧。

首页我们来看输出双引号的几种方法
方法一.

复制代码 代码如下:


$str ='我要输出双引号"';
echo $str;


结果为:我要输出双引号"

方法二

复制代码 代码如下:


$str ="输出双引号\"";
echo $str;
//结果输出双引号"


输出单引号与双引号

复制代码 代码如下:


$str ="输出单引号'";
$str1='输出单引号\'';
echo $str;
?>



单引号中间的字面里面的变量不会执行,双引号中间的变量可以执行,所以在没有变量的情况下,用单引号输出字符效率要比用双引号高很多。

对于特殊字符,大家可以用转移字符"\"即可.
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