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✏️ Editing: class-wordpress-popular-posts-helper.php

<?php

class WPP_Helper {

/**
     * Checks for valid number.
     *
     * @since   2.1.6
     * @param   int     number
     * @return  bool
     */
    public static function is_number( $number ){
        return !empty($number) && is_numeric($number) && (intval($number) == floatval($number));
    }

/**
     * Checks for valid date.
     *
     * @since   4.0.0
     * @param   string   $date
     * @param   string   $format
     * @return  bool
     */
    public static function is_valid_date( $date = null, $format = 'Y-m-d' ){
        $d = DateTime::createFromFormat( $format, $date );
        return $d && $d->format($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 "<pre>";
            var_dump($arg);
            print "</pre>";

}

/**
     * 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

MR SKB