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如何在WordPress中使用PHP函数高效获取和解析搜索表单

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

1 2 3 <?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。

1 2 3 <?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

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 <?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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