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<?php $text = "<b>To jest 'tekst'</b>"; var_dump(filter_var($text, FILTER_SANITIZE_SPECIAL_CHARS));
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.38, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
string(46) "&#60;b&#62;To jest &#39;tekst&#39;&#60;/b&#62;"
preferences:
270.66 ms | 404 KiB | 325 Q