晋太元中，武陵人捕鱼为业。缘溪行，忘路之远近。忽逢桃花林，夹岸数百步，中无杂树，芳草鲜美，落英缤纷。渔人甚异之，复前行，欲穷其林。 　　林尽水源，便得一山，山有小口，仿佛若有光。便舍船，从口入。初极狭，才通人。复行数十步，豁然开朗。土地平旷，屋舍俨然，有良田、美池、桑竹之属。阡陌交通，鸡犬相闻。其中往来种作，男女衣着，悉如外人。黄发垂髫，并怡然自乐。 　　见渔人，乃大惊，问所从来。具答之。便要还家，设酒杀鸡作食。村中闻有此人，咸来问讯。自云先世避秦时乱，率妻子邑人来此绝境，不复出焉，遂与外人间隔。问今是何世，乃不知有汉，无论魏晋。此人一一为具言所闻，皆叹惋。余人各复延至其家，皆出酒食。停数日，辞去。此中人语云：“不足为外人道也。”(间隔 一作：隔绝) 　　既出，得其船，便扶向路，处处志之。及郡下，诣太守，说如此。太守即遣人随其往，寻向所志，遂迷，不复得路。 　　南阳刘子骥，高尚士也，闻之，欣然规往。未果，寻病终。后遂无问津者。 .
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Directory :  /home/rainic/www/oldTZh/wp-content/plugins/powerpack-elements/modules/custom-fields/fields/

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Current File : /home/rainic/www/oldTZh/wp-content/plugins/powerpack-elements/modules/custom-fields/fields/acf.php
<?php
namespace PowerpackElements\Modules\CustomFields\Fields;

use PowerpackElements\Base\Module_Base;

if ( ! defined( 'ABSPATH' ) ) {
	exit; // Exit if accessed directly
}

/**
 * \Modules\CustomFields\Fields\Acf
 *
 * @since  2.1.0
 */
class Acf extends Field_Base {

	/**
	 * Get Name
	 *
	 * Get the name of the field type
	 *
	 * @since  2.1.0
	 * @return string
	 */
	public function get_name() {
		return 'acf';
	}

	/**
	 * Get Title
	 *
	 * Get the title of the field type
	 *
	 * @since  2.1.0
	 * @return string
	 */
	public function get_title() {
		return __( 'ACF', 'powerpack' );
	}

	/**
	 * Get Available Fields
	 *
	 * @since  2.1.0
	 * @param  post_id|int      The post id
	 * @return array|bool       The available ACF fields
	 */
	public function get_fields( $post_id ) {
		if ( ! $post_id || ! function_exists( 'get_field_objects' ) ) {
			return;
		}

		$_fields = [];
		$fields = get_field_objects( $post_id );

		if ( ! $fields ) {
			return;
		}

		foreach ( $fields as $name => $object ) {
			if ( 'date_picker' === $object['type'] || 'date_time_picker' === $object['type'] ) {
				$_fields[ $object['key'] ] = $object['label'];
			}
		}

		if ( $_fields ) {
			return $_fields;
		}

		return false;
	}

	/**
	 * Get Field Value
	 *
	 * Returns field value given a key and a post
	 *
	 * @since  2.1.0
	 * @param  post_id|int      The Post ID
	 * @param  key|string       The key of the field
	 * @return string|bool      The formatted date or false
	 */
	public function get_field_value( $post_id, $key ) {

		// Fallback to current post
		if ( ! $post_id ) {
			$post_id = get_the_ID();
		}

		// Double check for key and acf function
		if ( ! $key || ! function_exists( 'get_field_object' ) ) {
			return;
		}

		// Get field object
		$field_object = get_field_object( $key, $post_id );
		$field_db_value = acf_get_metadata( $post_id, $field_object['name'] );

		// Check for valid value
		if ( ! $field_db_value ) {
			return;
		}

		// ACF Saves date_picker types in this format
		$format = 'Ymd';

		if ( 'date_time_picker' === $field_object['type'] ) {

			// ACF Saves date_time_picker types in this format
			$format = 'Y-m-d H:i:s';
		}

		// Return the date in the appropriate format
		$date = \DateTime::createFromFormat( $format, $field_db_value );

		if ( false !== $date ) {
			return $date->format( 'Y-m-d' );
		}

		return false;
	}
}

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