<?php
//$input = "I don't want this piece. This is the sentence I want. In don't want this piece either";
$input = "I don't want this piece! This is the <a href='https://example.com/my-sentence'>sentence</a> I want. In don't want this piece either";
$filter = "sentence";
$regex = '~\b(?:[^.?!]|https?://[^<>\s"\']++)*?'.preg_quote($filter, '~').'(?:[^.?!]|https?://[^<>\s"\']++)*~u';
if (preg_match_all($regex, $input, $match)){
print_r( array_map(function($x) {return strip_tags($x);}, $match[0]) );
}
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0
Array
(
[0] => This is the sentence I want
)