当我使用这个短代码时，它只显示[product_slider_home]。我还检查了shortcode_exists函数，但它显示为false。我确信在这方面有一些错误。我可以忽略任何非常明显的事情吗？
if ( shortcode_exists( 'product_slider_home' ) )
{
echo "true";
}
else
{
echo "false" ;
}
function product_slider_home()
{
global $wpdb;
$sliders = $wpdb->get_results( "SELECT * FROM wp_posts where post_type_custom='zee_slider'" );
$output .= '<section id="main-slider1" style="margin: 0; padding: 0;">
<div class="carousel slide wet-asphalt">
<div class="carousel-inner" data-ride="carousel">';
foreach ($sliders as $key => $slider) { //foreach starts
$full_img = wp_get_attachment_image_src( get_post_thumbnail_id( $slider->ID ), 'full');
$slider_position = get_post_meta($slider->ID, 'slider_position', true );
$boxed = (get_post_meta($slider->ID, 'slider_boxed', true )=='yes') ? 'boxed' : '';
$has_button = (get_post_meta($slider->ID, 'slider_button_text', true )=='') ? false : true;
$button = get_post_meta($slider->ID, 'slider_button_text', true );
$button_url = get_post_meta($slider->ID, 'slider_button_url', true );
$video_url = get_post_meta($slider->ID, 'slider_video_link', true );
$video_type = get_post_meta($slider->ID, 'slider_video_type', true );
$bg_image_url = get_post_meta($slider->ID, 'slider_background_image', true );
$custom_image = get_post_meta($slider->ID, 'slider_custom_image',true);
$custom_image_url = wp_get_attachment_url($custom_image);
$background_image = 'background-image: url('.wp_get_attachment_url($bg_image_url).')';
$columns = false;
if( !empty($image_url) or !empty($video_url) ){
$columns = true;
}
if($custom_image){
$embed_code = '<img src="'.$custom_image_url.'" class="custom" alt="ashirvad">';
$columns = true;
}
$output .=' <div class="prod_slid item '.($key==0) ? 'active' : '' .'" style="'.( $bg_image_url ) ? $background_image : '' .'">
<div class=" slider-content "style="height:80vh;">
<div class="'. ($columns) ? 'col-sm-6' : 'col-sm-6' .'"style="padding-left:0px">
<div class="carousel-content ps_cc centered col-lg-9" style="margin-left:0%;padding-left:0px;">
<p class="'. $boxed .' animation animated-item-2">
'. do_shortcode( $slider->post_content ) .'
</p>';
if( $has_button ){
$output .=' <br>
<a class="btn btn-md animation animated-item-3" href="'.$button_url .'">'. $button .'</a>';
}
$output .= '</div>
</div>';
if($columns){
if($key == 1){
$class= "sanitary";
}
else{
$class="";
}
$output .='<div class="col-sm-6 hidden-xs animation animated-item-4" style="height:81.7vh;">
<div class="centered" >
<div class="embed-container'. $class.'"; }?>" style="width:70%;position:absolute;">';
$embed_code;
$output .=' </div>
</div>
</div>';
}
$output .=' </div>
</div><!--/.item-->';
} // endforeach
$output .=' </div><
</div>
<a class="next hidden-xs" href="#main-slider1" data-slide="next">
<i class="icon-angle-right"></i>
</a>
<a class="prev hidden-xs" href="#main-slider1" data-slide="prev" style="left: -10%;">
<i class="icon-angle-left"></i>
</a>
</section>';
}
return $output; //returns the output
add_shortcode('product_slider_home', 'product_slider_home');//creating shortcode
答案 0 :(得分：1)
您在关闭大括号return $output; //returns the output之后添加了代码}。您需要在return $output; //returns the output之前写下}。
用下面的代码替换你的代码并尝试：
<?php
if (shortcode_exists('product_slider_home')) {
echo "true";
} else {
echo "false";
}
function product_slider_home() {
global $wpdb;
$sliders = $wpdb->get_results("SELECT * FROM wp_posts where post_type_custom='zee_slider'");
$output .= '<section id="main-slider1" style="margin: 0; padding: 0;">
<div class="carousel slide wet-asphalt">
<div class="carousel-inner" data-ride="carousel">';
foreach ($sliders as $key => $slider) { //foreach starts
$full_img = wp_get_attachment_image_src(get_post_thumbnail_id($slider->ID), 'full');
$slider_position = get_post_meta($slider->ID, 'slider_position', true);
$boxed = (get_post_meta($slider->ID, 'slider_boxed', true) == 'yes') ? 'boxed' : '';
$has_button = (get_post_meta($slider->ID, 'slider_button_text', true) == '') ? false : true;
$button = get_post_meta($slider->ID, 'slider_button_text', true);
$button_url = get_post_meta($slider->ID, 'slider_button_url', true);
$video_url = get_post_meta($slider->ID, 'slider_video_link', true);
$video_type = get_post_meta($slider->ID, 'slider_video_type', true);
$bg_image_url = get_post_meta($slider->ID, 'slider_background_image', true);
$custom_image = get_post_meta($slider->ID, 'slider_custom_image', true);
$custom_image_url = wp_get_attachment_url($custom_image);
$background_image = 'background-image: url(' . wp_get_attachment_url($bg_image_url) . ')';
$columns = false;
if (!empty($image_url) or ! empty($video_url)) {
$columns = true;
}
if ($custom_image) {
$embed_code = '<img src="' . $custom_image_url . '" class="custom" alt="ashirvad">';
$columns = true;
}
$output .=' <div class="prod_slid item ' . ($key == 0) ? 'active' : '' . '" style="' . ( $bg_image_url ) ? $background_image : '' . '">
<div class=" slider-content "style="height:80vh;">
<div class="' . ($columns) ? 'col-sm-6' : 'col-sm-6' . '"style="padding-left:0px">
<div class="carousel-content ps_cc centered col-lg-9" style="margin-left:0%;padding-left:0px;">
<p class="' . $boxed . ' animation animated-item-2">
' . do_shortcode($slider->post_content) . '
</p>';
if ($has_button) {
$output .=' <br>
<a class="btn btn-md animation animated-item-3" href="' . $button_url . '">' . $button . '</a>';
}
$output .= '</div>
</div>';
if ($columns) {
if ($key == 1) {
$class = "sanitary";
} else {
$class = "";
}
$output .='<div class="col-sm-6 hidden-xs animation animated-item-4" style="height:81.7vh;">
<div class="centered" >
<div class="embed-container' . $class . '" style="width:70%;position:absolute;">';
$output .= $embed_code;
$output .=' </div>
</div>
</div>';
}
$output .=' </div>
</div>';
} // endforeach
$output .=' </div>
</div>
<a class="next hidden-xs" href="#main-slider1" data-slide="next">
<i class="icon-angle-right"></i>
</a>
<a class="prev hidden-xs" href="#main-slider1" data-slide="prev" style="left: -10%;">
<i class="icon-angle-left"></i>
</a>
</section>';
echo $output; //returns the output
die;
}
add_shortcode('product_slider_home', 'product_slider_home'); //creating shortcode
?>