How to accomplish quoted-printable string conversion in PHP

During the use of PHP, we may need to convert the 8-bit string into a quoted-printable string. In order to solve this problem If there is any trouble, we can use the quoted_printable_encode() function to complete this task. This article will take you to take a look.

First, let’s take a look at the syntax of the quoted_printable_encode() function:

quoted_printable_encode    ( string $str   )

• str: ​​Input string.

• Return value: Return the encoded string

Code example:

<?php
$str1="php.cn=2021";
echo $str1."<br>";
$str2=quoted_printable_encode($str1);
echo $str2;
?>

输出：php.cn=2021
       php.cn=3D2021

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