Você procurou por: print_r($_post) (Inglês - Russo)

print_r
print_r

//print_r($m);
//print_r($m);

//) print_r ( $b );
var_dump ( $array ); //foo=>modified_again

//print_r($_session);
//print_r($_session);

print_r($unserialized);
print_r ( $arremployee );

//print_r($emails);
//print_r($emails);

print_r ( apc_sma_info ());
print_r ( apc_sma_info ());

print_r ( $xhprof_data );
print_r ( $xhprof_data );

print_r ( $dbh -> errorinfo ());
$sth = $dbh -> prepare ( $sql );

print_r ( apc_cache_info ());
var_dump ( $regex );

print_r ( $e ); ?> output:
$one = gmp_init ( '1' );

print_r ( $application -> environ ());
print_r ( $application -> environ ());

print_r ( get_defined_constants ());
print_r ( get_defined_constants ());

print_r ( $user_defined_constants );
print_r ( $user_defined_constants );

print_r ( $result -> fetch_row ());
print_r ( $result -> fetch_row ());

printf ( "post: " ); print_r ( $_post ); printf ( "" );
printf ( "post: " ); print_r ( $_post ); printf ( "" );

$_post
$_cookie

class_alias ( 'print_r' , 'printr' );
class_alias ( 'print_r' , 'printr' );

$_post = [
$_post = [

print_r ( $reversed ); print_r ( $preserved );
print_r ( array_uintersect ( $array1 , $array2 , "strcasecmp" ));