//custom excerpt length
function wpex_get_excerpt( $args = array() ) {
// Defaults
$defaults = array(
'post' => '',
'length' => 200,
'readmore' => false,
'readmore_text' => esc_html__( 'read more', 'text-domain' ),
'readmore_after' => '',
'custom_excerpts' => true,
'disable_more' => false,
);
// Apply filters
$defaults = apply_filters( 'wpex_get_excerpt_defaults', $defaults );
// Parse args
$args = wp_parse_args( $args, $defaults );
// Apply filters to args
$args = apply_filters( 'wpex_get_excerpt_args', $defaults );
// Extract
extract( $args );
// Get global post data
if ( ! $post ) {
global $post;
}
// Get post ID
$post_id = $post->ID;
// Check for custom excerpt
if ( $custom_excerpts && has_excerpt( $post_id ) ) {
$output = $post->post_excerpt;
}
// No custom excerpt...so lets generate one
else {
// Readmore link
$readmore_link = '<a href="' . get_permalink( $post_id ) . '" class="readmore">' . $readmore_text . $readmore_after . '</a>';
// Check for more tag and return content if it exists
if ( ! $disable_more && strpos( $post->post_content, '<!--more-->' ) ) {
$output = apply_filters( 'the_content', get_the_content( $readmore_text . $readmore_after ) );
}
// No more tag defined so generate excerpt using wp_trim_words
else {
// Generate excerpt
$output = wp_trim_words( strip_shortcodes( $post->post_content ), $length );
// Add readmore to excerpt if enabled
if ( $readmore ) {
$output .= apply_filters( 'wpex_readmore_link', $readmore_link );
}
}
}
// Apply filters and echo
return apply_filters( 'wpex_get_excerpt', $output );
}当前导航添加样式
WordPress
by CSS:
[aria-current="page"] {
style
}Php & Html
by Js:
var href= window.location.href;
$('a[href="' + href + '"]').addClass('active'); Add and Remove Group Meta Box
<?php
function hhs_get_sample_options() {
$options = array (
'Option 1' => 'option1',
'Option 2' => 'option2',
'Option 3' => 'option3',
'Option 4' => 'option4',
);
return $options;
}
add_action('admin_init', 'hhs_add_meta_boxes', 1);
function hhs_add_meta_boxes() {
add_meta_box( 'repeatable-fields', 'Repeatable Fields', 'hhs_repeatable_meta_box_display', 'post', 'normal', 'default');
}
function hhs_repeatable_meta_box_display() {
global $post;
$repeatable_fields = get_post_meta($post->ID, 'repeatable_fields', true);
$options = hhs_get_sample_options();
wp_nonce_field( 'hhs_repeatable_meta_box_nonce', 'hhs_repeatable_meta_box_nonce' );
?>
<script type="text/javascript">
jQuery(document).ready(function( $ ){
$( '#add-row' ).on('click', function() {
var row = $( '.empty-row.screen-reader-text' ).clone(true);
row.removeClass( 'empty-row screen-reader-text' );
row.insertBefore( '#repeatable-fieldset-one tbody>tr:last' );
return false;
});
$( '.remove-row' ).on('click', function() {
$(this).parents('tr').remove();
return false;
});
});
</script>
<table id="repeatable-fieldset-one" width="100%">
<thead>
<tr>
<th width="40%">Name</th>
<th width="12%">Select</th>
<th width="40%">URL</th>
<th width="8%"></th>
</tr>
</thead>
<tbody>
<?php
if ( $repeatable_fields ) :
foreach ( $repeatable_fields as $field ) {
?>
<tr>
<td><input type="text" class="widefat" name="name[]" value="<?php if($field['name'] != '') echo esc_attr( $field['name'] ); ?>" /></td>
<td>
<select name="select[]">
<?php foreach ( $options as $label => $value ) : ?>
<option value="<?php echo $value; ?>"<?php selected( $field['select'], $value ); ?>><?php echo $label; ?></option>
<?php endforeach; ?>
</select>
</td>
<td><input type="text" class="widefat" name="url[]" value="<?php if ($field['url'] != '') echo esc_attr( $field['url'] ); else echo 'http://'; ?>" /></td>
<td><a class="button remove-row" href="#">Remove</a></td>
</tr>
<?php
}
else :
// show a blank one
?>
<tr>
<td><input type="text" class="widefat" name="name[]" /></td>
<td>
<select name="select[]">
<?php foreach ( $options as $label => $value ) : ?>
<option value="<?php echo $value; ?>"><?php echo $label; ?></option>
<?php endforeach; ?>
</select>
</td>
<td><input type="text" class="widefat" name="url[]" value="http://" /></td>
<td><a class="button remove-row" href="#">Remove</a></td>
</tr>
<?php endif; ?>
<!-- empty hidden one for jQuery -->
<tr class="empty-row screen-reader-text">
<td><input type="text" class="widefat" name="name[]" /></td>
<td>
<select name="select[]">
<?php foreach ( $options as $label => $value ) : ?>
<option value="<?php echo $value; ?>"><?php echo $label; ?></option>
<?php endforeach; ?>
</select>
</td>
<td><input type="text" class="widefat" name="url[]" value="http://" /></td>
<td><a class="button remove-row" href="#">Remove</a></td>
</tr>
</tbody>
</table>
<p><a id="add-row" class="button" href="#">Add another</a></p>
<?php
}
add_action('save_post', 'hhs_repeatable_meta_box_save');
function hhs_repeatable_meta_box_save($post_id) {
if ( ! isset( $_POST['hhs_repeatable_meta_box_nonce'] ) ||
! wp_verify_nonce( $_POST['hhs_repeatable_meta_box_nonce'], 'hhs_repeatable_meta_box_nonce' ) )
return;
if (defined('DOING_AUTOSAVE') && DOING_AUTOSAVE)
return;
if (!current_user_can('edit_post', $post_id))
return;
$old = get_post_meta($post_id, 'repeatable_fields', true);
$new = array();
$options = hhs_get_sample_options();
$names = $_POST['name'];
$selects = $_POST['select'];
$urls = $_POST['url'];
$count = count( $names );
for ( $i = 0; $i < $count; $i++ ) {
if ( $names[$i] != '' ) :
$new[$i]['name'] = stripslashes( strip_tags( $names[$i] ) );
if ( in_array( $selects[$i], $options ) )
$new[$i]['select'] = $selects[$i];
else
$new[$i]['select'] = '';
if ( $urls[$i] == 'http://' )
$new[$i]['url'] = '';
else
$new[$i]['url'] = stripslashes( $urls[$i] ); // and however you want to sanitize
endif;
}
if ( !empty( $new ) && $new != $old )
update_post_meta( $post_id, 'repeatable_fields', $new );
elseif ( empty($new) && $old )
delete_post_meta( $post_id, 'repeatable_fields', $old );
}
?>获取当前文章父级分类别名
Use the ID value returned by $category[0]->category_parent and pass it through get_term(). Example:
$category = get_the_category();
$category_parent_id = $category[0]->category_parent;
if ( $category_parent_id != 0 ) {
$category_parent = get_term( $category_parent_id, 'category' );
$css_slug = $category_parent->slug;
} else {
$css_slug = $category[0]->slug;
}自动获取序号
html:
<ul class="num">
<li><span></span></li>
<li><span></span></li>
<li><span></span></li>
<li><span></span></li>
<li><span></span></li>
<li><span></span></li>
<li><span></span></li>
<li><span></span></li>
<li><span></span></li>
<li><span></span></li>
<li><span></span></li>
<li><span></span></li>
</ul>js:
function addNum() {
var $items = $('.num').find('li').length;
for( var $i = 0; $i < $items; $i++) {
var a = $i + 1;
if(a<10){
$('.num').find('li').eq($i).find('span').html(a).prepend('0');}
else{
$('.num').find('li').eq($i).find('span').html(a);
}
}
}
$(function() {addNum();})获取最大高度
function ResizeAll() {
var $box = $('.works-box .item');
$box.css({
"height": "auto"
});
$box.height(Math.max.apply(null, $box.map(function () {
return $(this).height();
})));
}wordpress不同模板获取不同的meta信息
//META DESCRIPTION FUNCTION
function seometadescription(){
global $post, $posts;
if ( is_single() || is_page() ) :
$customDesc = 'meta_desc';
if ( have_posts() ) : while ( have_posts() ) : the_post();
$descriere = get_post_meta($post->ID, $customDesc, true);
endwhile;
endif;
elseif( is_category() ):
$descriere = category_description();
elseif( is_front_page() ) :
$descriere = 'some words for front page description';
endif;
$customMetaDesc = '<meta name="description" content="'.$descriere.'" />';
echo $customMetaDesc;
}
// end meta desc functioniframe插入视频,点击按钮播放
<iframe src="https://www.youtube.com/embed/gc9oMqXZXGM?enablejsapi=1&version=3&playerapiid=ytplayer" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
<script>
$('.button').on('click',function(){
$('.parentbox').find('iframe')[0].contentWindow.postMessage('{"event":"command","func":"' + 'playVideo' + '","args":""}', '*');
})
</script>添加经典样式编辑器
add_meta_box('metabox5','Gallary','box_callback',array(''),'normal');
function box_callback($post){
wp_nonce_field('box5_nonceaction','box5_noncename');
$value = get_post_meta( $post->ID, '_box5_value_key', true );
wp_editor( htmlspecialchars_decode($value), $editor_id, $settings = array(
'quicktags'=> 0,
'tinymce'=>0,
'textarea_rows'=>4,
'editor_class'=>"textareastyle"
)); }
$post_ID = $_POST['post_ID'];
$mydata = $_POST[ $editor_id];
update_post_meta($post_ID,'_box5_value_key',$mydata);相关文章查询方法
<div class="related-content">
<?php global $post; $tags = wp_get_post_terms( $post->ID, '$taxonomy' );
if ( $tags ) {
$first_tag = $tags[ 0 ]->term_id;
$args = array(
'post_type' => '$post-type',
'post__not_in' => array( $post->ID ),
'tax_query' => array(
array(
'taxonomy' => '$taxonomy',
'field' => 'term_id',
'terms' => $first_tag,
),
),
);
$my_query = new WP_Query( $args );
if ( $my_query->have_posts() ) {
while ( $my_query->have_posts() ): $my_query->the_post();?>
/* ================
Loop
===============*/
<?php endwhile;wp_reset_postdata();
}}
else {
echo '<p>* 暂无相关文章</p>';
}?>
</div>