清理书签字段。
原型
sanitize_bookmark_field( string $field, mixed $value, int $bookmark_id, string $context )
描述
根据字段名称清理书签字段。如果该字段具有严格的值集,则将对其进行测试,否则将应用更通用的过滤。应用更严格的过滤器后,如果$ context为’raw’,则立即返回该值。
参数
$field
(string)
(Required)
书签字段。
$value
(mixed)
(Required)
书签字段值。
$bookmark_id
(int)
(Required)
书签ID。
$context
(string)
(Required)
如何过滤字段值。接受’raw’,‘edit’,‘attribute’,‘js’,‘db’或’display’
返回值
(mixed)
过滤后的值。
源文件
路径:wp-includes/bookmark.php
<?php
...
function sanitize_bookmark_field( $field, $value, $bookmark_id, $context ) {
switch ( $field ) {
case 'link_id' : // ints
case 'link_rating' :
$value = (int) $value;
break;
case 'link_category' : // array( ints )
$value = array_map('absint', (array) $value);
// We return here so that the categories aren't filtered.
// The 'link_category' filter is for the name of a link category, not an array of a link's link categories
return $value;
case 'link_visible' : // bool stored as Y|N
$value = preg_replace('/[^YNyn]/', '', $value);
break;
case 'link_target' : // "enum"
$targets = array('_top', '_blank');
if ( ! in_array($value, $targets) )
$value = '';
break;
}
if ( 'raw' == $context )
return $value;
if ( 'edit' == $context ) {
/** This filter is documented in wp-includes/post.php */
$value = apply_filters( "edit_{$field}", $value, $bookmark_id );
if ( 'link_notes' == $field ) {
$value = esc_html( $value ); // textarea_escaped
} else {
$value = esc_attr($value);
}
} elseif ( 'db' == $context ) {
/** This filter is documented in wp-includes/post.php */
$value = apply_filters( "pre_{$field}", $value );
} else {
/** This filter is documented in wp-includes/post.php */
$value = apply_filters( "{$field}", $value, $bookmark_id, $context );
if ( 'attribute' == $context ) {
$value = esc_attr( $value );
} elseif ( 'js' == $context ) {
$value = esc_js( $value );
}
}
return $value;
}
...
?>
其他
英文文档:https://developer.wordpress.org/reference/functions/sanitize_bookmark_field/