- file_get_contents: documentation ( source)
- preg_match_all: documentation ( source)
- str_replace: documentation ( source)
<?php
$url = file_get_contents('http://www.bcb.gov.br/');
preg_match_all('/ORES-->(.+)<!--/s', $url, $conteudo);
$exibir = $conteudo[0][0];
$retirar = array('mais moedas','atas Copom','mais detalhes','ORES-->','<!--');
$exibir = str_replace($retirar, '', $exibir);
echo $exibir;