php 创建自定义wordpress图库输出

Posted 2021-05-04

<?php

function _revise_post_gallery( $output, $attr ) {

	global $post;

	if ( isset( $attr['orderby'] ) ) {

		$attr['orderby'] = sanitize_sql_orderby( $attr['orderby'] );

		if ( ! $attr['orderby'] ) {
			unset( $attr['orderby'] );
		}
	}

	extract( shortcode_atts( array(
		'captiontag' => 'dd',
		'columns'    => 3,
		'icontag'    => 'dt',
		'id'         => $post->ID,
		'include'    => '',
		'itemtag'    => 'dl',
		'order'      => 'ASC',
		'orderby'    => 'menu_order ID',
		'size'       => 'thumbnail',
		'exclude'    => '',
	), $attr ) );

	$id = intval( $id );

	if ( 'RAND' == $order ) {
		$orderby = 'none';
	}

	if ( ! empty( $include ) ) {

		$include      = preg_replace( '/[^0-9,]+/', '', $include );
		$_attachments = get_posts( array(
			'include'        => $include,
			'order'          => $order,
			'orderby'        => $orderby,
			'post_mime_type' => 'image',
			'post_status'    => 'inherit',
			'post_type'      => 'attachment',
		) );

		$attachments = array();

		foreach ( $_attachments as $key => $val ) {
			$attachments[ $val->ID ] = $_attachments[ $key ];
		}
	}

	if ( empty( $attachments ) ) {
		return '';
	}

	// Here's your actual output, you may customize it to your needs
	$output  = '<div class="grid-container">';

	$count   = 0;

	// Now you loop through each attachment
	foreach ( $attachments as $id => $attachment ) {
		$img = wp_get_attachment_image_src( $id, 'medium' );

		$output .= '<a href="" class="modal-trigger" data-index="' . absint( (int) $count ) . '" data-target="#modal-gallery">';
		$output .= '<img src="' . esc_url( $img[0] ) . '" width="' . absint( (int) $img[1] ) . '" height="' . absint( (int) $img[2] ) . '" alt="' . esc_html__( 'Click to View Larger', 'apracticalwedding' ) . '" class="gallery-item" />';
		$output .= '</a>';

		$count++;
	}

	$output .= '</div>';

	return $output;
}
add_filter( 'post_gallery', '_revise_post_gallery', 10, 2 );