Hai cercato la traduzione di occurred da Turco a Spagnolo

an error occurred when obtaining the system encryption status.
ha ocurrido un error al obtener el estado del sistema de encriptación.

returns the number of full pattern matches, or false if no match is found or an error occurred.
preg_match_all( "_bar_ [^] + (.*) / [^] + _bar_u"," b example: / b div align=left this is a test / div ", $out, preg_set_order); print $out[0][0] .", ".$out[0][1] ."\n"; print $out[1][0] .", ".$out[1][1] ."\n"

returns true if a match for pattern was found in the subject string, or false if not match was found or an error occurred.
si matches es dado, entonces será definido con el resultado de la búsqueda. $matches[ 0] contendrá el texto que empareja con el patrón en su totalidad. $matches[1] tendrá la cadena que empareje con el primer subpatrón que esté entre paréntesis y así sucesivamente.

a positive value is returned if the target returned a diagnostic code; a value of zero is returned if no errors occurred (success); negative value is returned for other errors (such as when the target closed connection, etc).
a positive value is returned if the target returned a diagnostic code; a value of zero is returned if no errors occurred (success); negative value is returned for other errors targets didn 't indicate the error in question.