php 用htmlspecialchars

Posted 2021-05-04

 <?php 
       $text1 = "HTMLSPECIALCHARS <Click> & learn more";
       $text2 = "☺❀♺©™₽";
     
       $url_page = "php/page/url.php";
       $param1 = "this is a sctring width < >";
       $param2 = "&#?*$[]+ are bad chars";
       $linktext = "<Clicl> & click";
       
       $url = "http://localhost/";
       $url .= rawurlencode($url_page);
       $url .= "?" . "param1=" . urlencode($param1);
       $url .= "&" . "param2=" . urlencode($param2);
    ?>
    
       
          <p><?php echo  htmlspecialchars($text1); ?></p><br>
          <p><?php echo  htmlentities($text2); ?></p><br>
          <p><?php echo htmlspecialchars($url); ?></p>

<?php 
 $text1 = "<Clicl> & click";
 echo htmlspecialchars($text1); //> &lt;Clicl&gt; &amp; click
 

 $text2 = "<Clicl> & click";
 echo urlencode($text2); //> %3CClicl%3E+%26+click
 

 $text3 = "<Clicl> & click";
 echo rawurlencode($text3); //> %3CClicl%3E%20%26%20click 

?>