PHP restore 16 Binary special characters

16-Step tab for special characters: https://websitebuilders.com/tools/html-codes/ascii/

Can be converted by the Hexdec () and chr () methods,

Example:

<? XML version=\x221.0\x22 encoding=\x22utf-8\x22 ?>\x0a<IDaffiliate event_id   refalias

Where \x22 is the double quote ", and \x0a is the change number \ n, through some methods after conversion:

    $str= "<?xml version=\x221.0\x22 encoding=\x22utf-8\x22?>\x0a<order id=\x22test\x22 affiliate=\x22main\x22 event_id=\x221\x22 ref=\x22tpcya\x22 alias=\x22\x22/> "; functionHexdec_string ($content) {        Preg_replace_callback(            "(\\\\x ([0-9a-f]{2})) I",function($matches) {return CHR(Hexdec($matches[1]);},//$string            $content        ); return $content; }    Echo Htmlspecialchars(Hexdec_string ($str), ent_quotes); Export the contents of XML as plain text

Results:

<? XML version= "1.0" encoding= "Utf-8" ?> <  ID= "Test"  affiliate= "main"  event_id= "1"  ref  = "Tpcya"  alias= ""/>

Reference: HTTPS://STACKOVERFLOW.COM/QUESTIONS/12238657/DECODING-JAVASCRIPT-ESCAPE-SEQUENCES-IN-PHP-X27-X22-ETC
http://php.net/manual/en/function.preg-replace-callback.php

PHP restore 16 Binary special characters