How to convert php string to url entity

How to convert php string to url entity: 1. Parse the url through parse_url(); 2. Encode and decode the Chinese of the url; 3. Convert the string into html entities through htmlentities and other methods. .

#The operating environment of this article: Windows 7 system, PHP version 7.4, Dell G3 computer.

php How to convert string to url entity?

PHP string url parsing and entity conversion:

1. Parse the url through parse_url() and return its components:

<?php
    $str = &#39;http://www.zymseo.com/admin?uname=zym&pwd=123456&#39;;
    echo &#39;<pre class="brush:php;toolbar:false">&#39;;
    print_r(parse_url($str));
    echo &#39;<pre/>&#39;;
    /*
        Array
            (
                [scheme] => http
                [host] => www.zymseo.com
                [path] => /admin
                [query] => uname=zym&pwd=123456
             )
    */
     echo parse_url($str,PHP_URL_HOST);//www.zymseo.com
     echo parse_url($str,PHP_URL_PATH);// /admin
?>

2. URL encoding and decoding function to encode and decode the Chinese of the url:

<?php
   $str = &#39;赵一鸣个人技术博客&#39;;
   $a = urlencode($str);
   echo "<a href=&#39;test26.php?h=$a&#39;>点击跳转</a>";//网址的中文部分变成了英文编码
   echo urlencode($str);//%D5%D4%D2%BB%C3%F9%B8%F6%C8%CB%BC%BC%CA%F5%B2%A9%BF%CD
   echo urldecode(urlencode($str));//赵一鸣个人技术博客
?>

3. Convert the string to html entity:

<?php
     $str = &#39;<h1>赵一鸣SEO技术博客</h1>&#39;;
     echo $str;//赵一鸣SEO技术博客
     //转换中文
     echo htmlentities($str);//<h1>ÕÔÒ»ÃùSEO¼¼Êõ²©¿Í</h1>
     echo htmlspecialchars($str);//不转换【中文】
     echo htmlspecialchars_decode($str);//赵一鸣SEO技术博客
?>

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