php - About the display of htmlentities

Question

$str = "A 'quote' is <b>bold</b>";

// Output: A 'quote' is <b>bold</b>
echo htmlentities($str);

Example from the official website, why when I use it, the page still displays A 'quote' is bold instead of the content in the comment

Answer 1

If it’s just this piece of code, there will be no problem running it!

It depends on whether you have other codes that are affected

Answer 2

Right click -> View web page source code

Answer 3

Press F12 > Network > Response to view the parameters of the link response. The default browser will escape the ascii code for you.

Answer 4

There is no problem with the running result because this kind of string ‘<’ is parsed by the browser; if you really want to output it like this

<?php
$str = "A 'quote' is <b>bold</b>";

// 输出: A 'quote' is <b>bold</b>

echo  htmlentities(htmlentities($str)).'<br>';

Answer 5

https://zhidao.baidu.com/ques...