format($format) === $date; } /** * Returns an array of dates between two dates. * * @since 4.0.0 * @param string $start_date * @param string $end_date * @param string $format * @return array|bool */ public static function get_date_range( $start_date = null, $end_date = null, $format = 'Y-m-d' ) { if ( self::is_valid_date( $start_date ) && self::is_valid_date( $end_date ) ) { $dates = array(); $begin = new DateTime( $start_date ); $end = new DateTime( $end_date ); if ( $begin < $end ) { while( $begin <= $end ) { $dates[] = $begin->format( $format ); $begin->modify('+1 day'); } } else { while( $begin >= $end ) { $dates[] = $begin->format( $format ); $begin->modify('-1 day'); } } return $dates; } return false; } /** * Returns server date. * * @since 2.1.6 * @access private * @return string */ public static function curdate() { return gmdate( 'Y-m-d', ( time() + ( get_option( 'gmt_offset' ) * 3600 ) ) ); } /** * Returns mysql datetime. * * @since 2.1.6 * @access private * @return string */ public static function now() { return current_time( 'mysql' ); } /** * Returns time. * * @since 2.3.0 * @return string */ public static function microtime_float() { list( $msec, $sec ) = explode( ' ', microtime() ); return (float) $msec + (float) $sec; } /** * Merges two associative arrays recursively. * * @since 2.3.4 * @link http://www.php.net/manual/en/function.array-merge-recursive.php#92195 * @param array array1 * @param array array2 * @return array */ public static function merge_array_r( array $array1, array $array2 ) { $merged = $array1; foreach ( $array2 as $key => &$value ) { if ( is_array( $value ) && isset ( $merged[$key] ) && is_array( $merged[$key] ) ) { $merged[$key] = self::merge_array_r( $merged[$key], $value ); } else { $merged[$key] = $value; } } return $merged; } /** * Debug function. * * @since 3.0.0 * @param mixed $v variable to display with var_dump() * @param mixed $v,... unlimited optional number of variables to display with var_dump() */ public static function debug( $v ) { if ( !defined('WPP_DEBUG') || !WPP_DEBUG ) return; foreach ( func_get_args() as $arg ) { print "

";
            var_dump($arg);
            print "

"; } } /** * Truncates text. * * @since 4.0.0 * @param string $text * @param int $length * @param bool $truncate_by_words * @return string */ public static function truncate( $text = '', $length = 25, $truncate_by_words = false ) { if ( '' !== $text ) { // Truncate by words if ( $truncate_by_words ) { $words = explode( " ", $text, $length + 1 ); if ( count($words) > $length ) { array_pop( $words ); $text = rtrim( implode(" ", $words), ",." ) . " ..."; } } // Truncate by characters elseif ( strlen($text) > $length ) { $text = rtrim( mb_substr($text, 0, $length , get_bloginfo('charset')), " ,." ) . "..."; } } return $text; } /** * Gets post/page ID if current page is singular * * @since 3.1.2 */ public static function is_single() { $trackable = array(); $registered_post_types = get_post_types( array('public' => true), 'names' ); foreach ( $registered_post_types as $post_type ) { $trackable[] = $post_type; } $trackable = apply_filters( 'wpp_trackable_post_types', $trackable ); if ( is_singular( $trackable ) && !is_front_page() && !is_preview() && !is_trackback() && !is_feed() && !is_robots() && !is_customize_preview() ) { return get_queried_object_id(); } return false; } } // End WPP_Helper class