first commit

wp-content/plugins/powerkit/modules/reading-time/class-powerkit-reading-time.php

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+<?php
+/**
+ * Reading Time
+ *
+ * @package    Powerkit
+ * @subpackage Modules
+ */
+
+if ( class_exists( 'Powerkit_Module' ) ) {
+	/**
+	 * Init module
+	 */
+	class Powerkit_Reading_Time extends Powerkit_Module {
+
+		/**
+		 * Register module
+		 */
+		public function register() {
+			$this->name     = esc_html__( 'Reading Time', 'powerkit' );
+			$this->desc     = esc_html__( 'Let’s you easily add an estimated reading time to your WordPress posts.', 'powerkit' );
+			$this->slug     = 'reading_time';
+			$this->type     = 'default';
+			$this->category = 'tools';
+			$this->priority = 140;
+			$this->public   = true;
+			$this->enabled  = true;
+			$this->links    = array(
+				array(
+					'name'   => esc_html__( 'View documentation', 'powerkit' ),
+					'url'    => powerkit_get_setting( 'documentation' ) . '/reading-time/',
+					'target' => '_blank',
+				),
+			);
+		}
+
+		/**
+		 * Initialize module
+		 */
+		public function initialize() {
+
+			/* Load the required dependencies for this module */
+
+			// Helpers Functions for the module.
+			require_once dirname( __FILE__ ) . '/helpers/helper-powerkit-reading-time.php';
+
+			// Admin and public area.
+			require_once dirname( __FILE__ ) . '/public/class-powerkit-reading-time-public.php';
+
+			new Powerkit_Reading_Time_Public( $this->slug );
+		}
+	}
+
+	new Powerkit_Reading_Time();
+}

wp-content/plugins/powerkit/modules/reading-time/helpers/helper-powerkit-reading-time.php

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+<?php
+/**
+ * Helpers Reading Time
+ *
+ * @package    Powerkit
+ * @subpackage Modules/Helper
+ */
+
+/**
+ * Calculate Post Reading Time in Minutes
+ *
+ * @param int $post_id The post ID.
+ */
+function powerkit_calculate_post_reading_time( $post_id = null ) {
+	if ( ! $post_id ) {
+		$post_id = get_the_ID();
+	}
+
+	$post_content     = get_post_field( 'post_content', $post_id );
+	$strip_shortcodes = strip_shortcodes( $post_content );
+	$strip_tags       = strip_tags( $strip_shortcodes );
+
+	$str        = preg_replace( '/[[:punct:]]/', '', $strip_tags );
+	$str        = preg_replace( '/[\s]+/', ' ', $str );
+	$word_count = count( (array) array_filter( (array) explode( ' ', $str ) ) );
+
+	$reading_time = intval( ceil( $word_count / 265 ) );
+
+	// Filter for Reading Time.
+	if ( function_exists( 'iconv_strlen') ) {
+		$reading_time = apply_filters( 'powerkit_calculate_reading_time', $reading_time, iconv_strlen( $strip_tags ) );
+	} else {
+		$reading_time = apply_filters( 'powerkit_calculate_reading_time', $reading_time, mb_strlen( $strip_tags ) );
+	}
+
+	return $reading_time;
+}
+
+/**
+ * Get Post Reading Time from Post Meta
+ *
+ * @param int $post_id The post ID.
+ */
+function powerkit_get_post_reading_time( $post_id = null ) {
+	if ( ! $post_id ) {
+		$post_id = get_the_ID();
+	}
+
+	// Get existing post meta.
+	$reading_time = get_post_meta( $post_id, '_powerkit_reading_time', true );
+
+	// Calculate and save reading time, if there's no existing post meta.
+	if ( ! $reading_time ) {
+		$reading_time = powerkit_calculate_post_reading_time( $post_id );
+		update_post_meta( $post_id, '_powerkit_reading_time', $reading_time );
+	}
+
+	return $reading_time;
+}

wp-content/plugins/powerkit/modules/reading-time/public/class-powerkit-reading-time-public.php

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+<?php
+/**
+ * The public-facing functionality of the module.
+ *
+ * @link       https://codesupply.co
+ * @since      1.0.0
+ *
+ * @package    Powerkit
+ * @subpackage Modules/public
+ */
+
+/**
+ * The public-facing functionality of the module.
+ */
+class Powerkit_Reading_Time_Public extends Powerkit_Module_Public {
+
+	/**
+	 * Initialize
+	 */
+	public function initialize() {
+		add_action( 'save_post', array( $this, 'update_post_reading_time' ), 10, 3 );
+	}
+
+	/**
+	 * Update Post Reading Time on Post Save
+	 *
+	 * @param int  $post_id The post ID.
+	 * @param post $post    The post object.
+	 * @param bool $update  Whether this is an existing post being updated or not.
+	 */
+	public function update_post_reading_time( $post_id, $post, $update ) {
+		if ( ! $post_id ) {
+			$post_id = get_the_ID();
+		}
+		$reading_time = powerkit_calculate_post_reading_time( $post_id );
+
+		update_post_meta( $post_id, '_powerkit_reading_time', $reading_time );
+	}
+}