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Source View: wp_sprintf

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Line Code
2722                if ( preg_match('/^%(\d+)\$/', $fragment, $matches) ) {
2723                     $arg = isset($args[$matches[1]]) ? $args[$matches[1]] : '';
2724                     $fragment = str_replace("%{$matches[1]}$", '%', $fragment);
2725                } else {
2726                     ++$arg_index;
2727                     $arg = isset($args[$arg_index]) ? $args[$arg_index] : '';
2728                }
2729
2730                // Apply filters OR sprintf
2731                $_fragment = apply_filters( 'wp_sprintf', $fragment, $arg );
2732                if ( $_fragment != $fragment )
2733                     $fragment = $_fragment;
2734                else
2735                     $fragment = sprintf($fragment, strval($arg) );
2736           }
2737
2738           // Append to result and move to next fragment
2739           $result .= $fragment;
2740           $start = $end;