html code to string code example

Example 1: html to string

import { decode } from 'html-entities';

function htmlToString(returnText: string) {
  //-- remove BR tags and replace them with line break
  returnText = returnText.replace(/<br>/gi, "\n");
  returnText = returnText.replace(/<br\s\/>/gi, "\n");
  returnText = returnText.replace(/<br\/>/gi, "\n");

  // //-- remove P and A tags but preserve what's inside of them
  returnText = returnText.replace(/<p.*>/gi, "\n");
  returnText = returnText.replace(/<a.*href="(.*?)".*>(.*?)<\/a>/gi, " $2 ($1)");

  // //-- remove all inside SCRIPT and STYLE tags
  returnText = returnText.replace(/<script.*>[\w\W]{1,}(.*?)[\w\W]{1,}<\/script>/gi, "");
  returnText = returnText.replace(/<style.*>[\w\W]{1,}(.*?)[\w\W]{1,}<\/style>/gi, "");

  // //-- remove all else
  returnText = returnText.replace(/<(?:.|\s)*?>/g, "");

  // //-- get rid of more than 2 multiple line breaks:
  returnText = returnText.replace(/(?:(?:\r\n|\r|\n)\s*){2,}/gim, "\n\n");

  //-- get rid of more than 2 spaces:
  returnText = returnText.replace(/ +(?= )/g, '');

  returnText = returnText.replace(/<[^>]+>/g, '').replace(/&lt;/g, "<").replace(/&gt;/g, ">")
  returnText = decode(returnText);
  
  return returnText;
}

Example 2: convert html code php

// html_entity_decode (php)

Ex:

<style>
.red {
  color: red;
}

.bold {
  font-weight: bold;
}
</style>
<?php
echo "<font class='red bold'> * required </font>";
?>