无法上班。 [英] Can't get \n to work.

问题描述

根据zend.com


PHP对双引号和单引号字符串的处理方式不同。 Double

引用字符串被解释，而单引号字符串被处理

完全按照书面形式处理。例如：


$ foo = 2;

echo" foo is $ foo" ;; //这个打印：foo是2

echo''foo是$ foo''; //这个打印：foo是$ foo

echo" foo是$ foo \ n" ;; //这个打印：foo是2（带换行符号）

echo''foo是$ foo \ n''; //这个打印：foo是$ foo \ n


我无法让它工作。

According to zend.com

Double and single quoted strings are handled differently by PHP. Double
quoted strings are interpreted while single quoted strings are treated
exactly as written. For example:

$foo = 2;
echo "foo is $foo"; // this prints: foo is 2
echo ''foo is $foo''; // this prints: foo is $foo
echo "foo is $foo\n"; // this prints: foo is 2 (with a new-line)
echo ''foo is $foo\n''; // this prints: foo is $foo\n

I can not get this to work.

推荐答案

foo = 2;

echo" foo is

foo = 2;
echo "foo is

foo" ;; //这个打印：foo是2

echo''foo是

foo"; // this prints: foo is 2
echo ''foo is

foo''; //这个打印：foo是

foo''; // this prints: foo is

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