How to convert special characters in php

php method to convert special characters: 1. Use backslashes to quote strings through the addslashes function; 2. Use the htmlentities function to convert into html entities; 3. Convert specific characters into html through the htmlspecialchars function entity.

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1. Addslashes() uses backslashes to quote strings

and

stripslashes() dequote a reference string

2. htmlentities(): Convert to html entity

and html_entity_decode(): Convert html Entities are converted into html tags

3. htmlspecialchars(): specific characters are converted into html entities

and htmlspecialchars_decode(): vice versa

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