SoFunction
Updated on 2025-04-04

PHP red-processes keywords in text content

PHP red-processes keywords in text content

Updated: July 9, 2024 17:10:47 Author: Corwien
This article introduces a function in PHP that can redraw the keywords of the content, highlight the keywords, and share them with everyone. I hope it will be helpful to everyone.

Sometimes when we display an article, we may need to red-light certain keywords so that we can quickly find and locate these keywords. Let's take a look at the specific implementation code below.

/**
   * Keyword red set method
   *
   * @access public
   * @param array $options parameter array
   * <li> $info_arr array content </li>
   * <li> $search_arr array keyword array </li>
   * @return int or array
   */
  function set_arr_keyword_red($info_arr, $search_arr)
 {
  foreach ($search_arr as $search_str)
  {
   foreach ($info_arr as $key =&gt; $info)
   {
    if(in_array($key,array('item_title','keywords', 'photo_title', 'photo_site','content',)))
    {
     $info = strip_tags($info);
     $info = str_replace(' ', '', $info);
     $q_str_pos = stripos($info, $search_str);
     if (false!==$q_str_pos)
     {
      $info = csubstr($info, $q_str_pos+150);
      $temp = csubstr($info,$q_str_pos-150);
      $info = substr($info, strlen($temp), 300);
      $info = preg_replace("/{$search_str}/i", "&lt;font color='red'&gt;{$search_str}&lt;/font&gt;", $info);
 
      if($info_arr['match_key']=='')
      $info_arr['match_key'] = $key;
     }
     else
     {
      $info = csubstr($info,300);
     }
    }
    $info_arr[$key] = $info;
   }
  }
  return $info_arr;
 }
 
$str = 'woloveu Xiaojun';
$info_arr = array('photo_title' =&gt; 'womejiojd');
$search_arr = array('Xiaojun');
$ret = set_arr_keyword_red($info_arr, $search_arr);
dump($ret );
  • PHP
  • Word
  • Set of red

Related Articles

  • Method of outputting html table with php array

    This article mainly introduces the method of outputting html tables from php arrays. Friends who need it can refer to it
    2014-02-02

  • PHP code summary for determining whether a visit is a search engine spider or an ordinary user

    This article mainly introduces the code summary of PHP to determine whether a visitor is a search engine spider or an ordinary user. There is always a variety of methods suitable for you to prevent search engine spiders from dragging the search engine to death.
    2015-09-09

  • php generates PDF file and encrypts

    This article introduces you how to use php to generate a pdf file, encrypt the file or set the access password. Friends who need it can refer to it.
    2015-06-06

  • Analysis of dynamic configuration, extended configuration and batch configuration examples of Thinkphp framework configuration operations

    This article mainly introduces the dynamic configuration, extended configuration and batch configuration of Thinkphp framework configuration operations. It analyzes the basic principles, implementation methods and related precautions in Thinkphp configuration operations based on examples. Friends who need it can refer to it.
    2020-05-05

  • A silent discussion on the principle and implementation of PHP&MYSQL pagination

    A silent discussion on the principle and implementation of PHP&MYSQL paging...
    2007-01-01

  • ThinkPHP5 framework integrates plupload to realize the batch upload function of image

    This article mainly introduces the method of integrating the thinkPHP5 framework to realize the batch upload function of image batch upload. Combined with examples, it analyzes the relevant operation techniques of thinkingPHP combined with the pluploadQueue to realize the upload function. Friends who need it can refer to it.
    2017-11-11

  • Analysis of the example usage of smarty loop nesting

    This article mainly introduces the usage of smarty loop nesting, and analyzes the implementation techniques and related precautions of smarty template nesting loops in combination with examples. Friends who need it can refer to it
    2016-07-07

  • PHP file management to realize the function operation of network disk and compressed packages

    This article mainly introduces the functions of implementing network disk and compression packages in PHP file management. Friends who need it can refer to it.
    2017-09-09

  • Implementation method of PHP batch query WordPress message poster E-mail address implementation

    This article mainly introduces the implementation method of PHP batch query WordPress messagers. This article directly gives the implementation code. Friends who need it can refer to it.
    2015-02-02

  • Configuring codeigniter framework method under Nginx

    Due to project migration, I had to configure the codeigniter framework under Nginx. I didn’t succeed in any configuration at the beginning. After the enthusiastic help of Duni and netizens, the correct settings were finally completed. I will share it with you here. Please refer to those who need it.
    2015-04-04

Latest Comments