php + espressioni regolari

[badaze]

Puoi fare cosi...

<? 
$frase ="blabla blabla [b]PAROLA1[/b] bla [b]PAROLA2[/b]";
$pattern ="|[b](.*)[/b]|U";
preg_match_all($pattern,$frase,$regs);
print_r($regs);
?>