我想添加一个本地产品属性值，该属性值将具有指向特定“href”值的链接。我关注了这个博客，并试图通过博客末尾提到的标记选项添加，该值变成了锚定标记链接，但href值没有正确获取。https://nicolamustone.blog/2016/03/11/make-product-attributes-linkable/
我在我的函数中添加了博客中的这个片段。php
/**
* Register term fields
*/
add_action( \'init\', \'register_attributes_url_meta\' );
function register_attributes_url_meta() {
$attributes = wc_get_attribute_taxonomies();
foreach ( $attributes as $tax ) {
$name = wc_attribute_taxonomy_name( $tax->attribute_name );
add_action( $name . \'_add_form_fields\', \'add_attribute_url_meta_field\' );
add_action( $name . \'_edit_form_fields\', \'edit_attribute_url_meta_field\', 10 );
add_action( \'edit_\' . $name, \'save_attribute_url\' );
add_action( \'create_\' . $name, \'save_attribute_url\' );
}
}
/**
* Add term fields form
*/
function add_attribute_url_meta_field() {
wp_nonce_field( basename( __FILE__ ), \'attrbute_url_meta_nonce\' );
?>
<div class="form-field">
<label for="attribute_url"><?php _e( \'URL\', \'domain\' ); ?></label>
<input type="url" name="attribute_url" id="attribute_url" value="" />
</div>
<?php
}
/**
* Edit term fields form
*/
function edit_attribute_url_meta_field( $term ) {
$url = get_term_meta( $term->term_id, \'attribute_url\', true );
wp_nonce_field( basename( __FILE__ ), \'attrbute_url_meta_nonce\' );
?>
<tr class="form-field">
<th scope="row" valign="top"><label for="attribute_url"><?php _e( \'URL\', \'domain\' ); ?></label></th>
<td>
<input type="url" name="attribute_url" id="attribute_url" value="<?php echo esc_url( $url ); ?>" />
</td>
</tr>
<?php
}
/**
* Save term fields
*/
function save_attribute_url( $term_id ) {
if ( ! isset( $_POST[\'attribute_url\'] ) || ! wp_verify_nonce( $_POST[\'attrbute_url_meta_nonce\'], basename( __FILE__ ) ) ) {
return;
}
$old_url = get_term_meta( $term_id, \'attribute_url\', true );
$new_url = esc_url( $_POST[\'attribute_url\'] );
if ( ! empty( $old_url ) && $new_url === \'\' ) {
delete_term_meta( $term_id, \'attribute_url\' );
} else if ( $old_url !== $new_url ) {
update_term_meta( $term_id, \'attribute_url\', $new_url, $old_url );
}
}
/**
* Show term URL
*/
add_filter( \'woocommerce_attribute\', \'make_product_atts_linkable\', 10, 3 );
function make_product_atts_linkable( $text, $attribute, $values ) {
$new_values = array();
foreach ( $values as $value ) {
if ( $attribute[\'is_taxonomy\'] ) {
$term = get_term_by( \'name\', $value, $attribute[\'name\'] );
$url = get_term_meta( $term->term_id, \'attribute_url\', true );
if ( ! empty( $url ) ) {
$val = \'<a href="\' . esc_url( $url ) . \'" title="\' . esc_attr( $value ) . \'">\' . $value . \'</a>\';
array_push( $new_values, $val );
} else {
array_push( $new_values, $value );
}
} else {
$matched = preg_match_all( "/\\[([^\\]]+)\\]\\(([^)]+)\\)/", $value, $matches );
if ( $matched && count( $matches ) == 3 ) {
$val = \'<a href="\' . esc_url( $matches[2][0] ) . \'" title="\' . esc_attr( $matches[1][0] ) . \'">\' . sanitize_text_field( $matches[1][0] ) . \'</a>\';
array_push( $new_values, $val );
} else {
array_push( $new_values, $value );
}
}
}
$text = implode( \', \', $new_values );
return $text;
}
我将cutom属性值添加为：
[Displayed text](https://expected-display-url.com)我期望它输出的内容：
<a href="https://expected-display-url.com">Displayed text</a>
但它转换了什么：
<a title="Displayed text">Displayed text</a>
即使我尝试添加特定的标题值，如：
[Displayed text](https://expected-display-url.com "title")它始终呈现为：<a title="Displayed text">Displayed text</a>
最合适的回答,由SO网友:Sally CJ 整理而成
在当前的WooCommerce版本中，请尝试此操作，而不是make_product_atts_linkable() 问题中的功能：
function make_product_atts_linkable( $text, $attribute, $values ) {
$vals = array();
if ( $attribute->is_taxonomy() ) {
foreach ( $attribute->get_options() as $i => $id ) {
if ( $url = get_term_meta( $id, \'attribute_url\', true ) ) {
$vals[] = \'<a href="\' . esc_url( $url ) . \'">\' . esc_html( get_term_field( \'name\', $id ) ) . \'</a>\';
} else {
$vals[] = $values[ $i ];
}
}
} else {
foreach ( $attribute->get_options() as $value ) {
$vals[] = preg_replace_callback( \'/\\[([^\\]]+)\\]\\(([^) ]+)(?: "([^"]+)"|)\\)/\', function ( $matches ) {
$title = ( ! empty( $matches[3] ) ) ? \' title="\' . esc_attr( $matches[3] ) . \'"\' : \'\';
return \'<a href="\' . esc_url( $matches[2] ) . \'"\' . $title . \'>\' . esc_html( $matches[1] ) . \'</a>\';
}, $value );
}
}
return wpautop( wptexturize( implode( \', \', $vals ) ) );
//return implode( \', \', $vals ); // Use this or the above. Up to you..
}
