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PHP - unhtmlentities

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  1. function unhtmlentities($cadena){
  2.     // reemplazar entidades numericas
  3.     $cadena = preg_replace('~&#x([0-9a-f]+);~ei', 'chr(hexdec("\\1"))', $cadena);
  4.     $cadena = preg_replace('~&#([0-9]+);~e', 'chr(\\1)', $cadena);
  5.     // reemplazar entidades literales
  6.     $trans_tbl = get_html_translation_table(HTML_ENTITIES);
  7.     $trans_tbl = array_flip($trans_tbl);
  8.     return strtr($cadena, $trans_tbl);
  9. }

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