这篇文章主要介绍了WordPress中用于获取搜索表单的PHP函数使用解析,即get_search_form函数的基本用法,需要的朋友可以参考下。
get_search_form 函数在 WordPress 中是用来提取预设的搜索表单或者默认的搜索表单的。因为官方这个函数没有中文的,所以我就简单写了一下。
描述
get_search_form 函数在 WordPress 中是用来提取自定义搜索表单或者默认的搜索表单的。
显示自定义表单还是显示默认表单,完全取决于您的主题中是否有search.php文件,如果有该文件,则自动调用该文件,如果没有则显示默认的搜索表单。
使用
- <?php
- get_search_form($echo = true)
- ?>
参数
$echo 布尔型,用来选择显示还是返回变量。
默认值:true
实例
没你想象的复杂,其实就是这么简单。
- <?php
- get_search_form();
- ?>
这里提一下,如果你需要整合谷歌自定义搜索那些的话,你只要在你的search.php 文件中将自定义的部分代码放入即可喽,当然你需要设定样式。
函数源代码
- <?php
- /**
- * Display search form.
- *
- * Will first attempt to locate the searchform.php file in either the child or
- * the parent, then load it. If it doesn't exist, then the default search form
- * will be displayed. The default search form is HTML, which will be displayed.
- * There is a filter applied to the search form HTML in order to edit or replace
- * it. The filter is 'get_search_form'.
- *
- * This function is primarily used by themes which want to hardcode the search
- * form into the sidebar and also by the search widget in WordPress.
- *
- * There is also an action that is called whenever the function is run called,
- * 'get_search_form'. This can be useful for outputting JavaScript that the
- * search relies on or various formatting that applies to the beginning of the
- * search. To give a few examples of what it can be used for.
- *
- * @since 2.7.0
- * @param boolean $echo Default to echo and not return the form.
- */
- function get_search_form($echo = true) {
- do_action( 'get_search_form' );
- $search_form_template = locate_template('searchform.php');
- if ( '' != $search_form_template ) {
- require($search_form_template);
- return;
- }
- $form = '<form role="search" method="get" id="searchform" action="' . esc_url( home_url( '/' ) ) . '" >
- <div><label class="screen-reader-text" for="s">' . __('Search for:') . '</label>
- <input type="text" value="' . get_search_query() . '" name="s" id="s" />
- <input type="submit" id="searchsubmit" value="'. esc_attr__('Search') .'" />
- </div>
- </form>';
- if ( $echo )
- echo apply_filters('get_search_form', $form);
- else
- return apply_filters('get_search_form', $form);
- }
- ?>
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