PHP | highlight_file() Function

The highlight_file() function is an inbuilt function in PHP which is used to highlight the syntax of file. The syntax is highlighted by using HTML tags.

Syntax:

highlight_file( $filename, $return )

Parameters: This function accepts two parameters as mentioned above and described below:



  • $filename: It is required parameter. It specifies the file whose content to be displayed.
  • $return: It is optional and boolean parameter. Its default value is FALSE. If it is set to TRUE, instead of printing it out, this function will return the highlighted code as a string.

Return Value: It returns TRUE on success, or returns FALSE on failure. If $return is set to TRUE, it will return the highlighted code as a string.

Note:

  • This function is available on PHP 4.0.0 and newer version.
  • The colors used for highlighting the PHP syntax can be set with the ini_set() function or in the php.ini file.
  • With this function entire file will be displayed, that may include sensitive data like passwords etc.

Example 1: Save the given code using name server.php and run the program.

filter_none

edit
close

play_arrow

link
brightness_4
code

<!DOCTYPE html>
<html>
  
<body>
    <?php
        highlight_file("geeks.php");
    ?>
</body>
  
</html>

chevron_right


Output:

Example 2: Save the given code using name geeks.php.

filter_none

edit
close

play_arrow

link
brightness_4
code

<?php
  
// Loading XML document to $user
$user = <<<XML
<user>
    <username>Username</username>
    <name>Firstname Lastname</name>
    <phone>+91-9876543210</phone>
    <detail font-color="blue" font="awsome-fonts" 
            font-size="24px">
        Noida, India
    </detail>
</user>
XML;
  
// Loading the string as simple xml object
$xml = simplexml_load_string($user);
  
// Print the children
foreach($xml->children() as $child) {
    echo "child node:".$child."</br>";
}
  
?>

chevron_right


Use the above filename in the below program to highlight the syntax.

filter_none

edit
close

play_arrow

link
brightness_4
code

<!DOCTYPE html>
<html>
  
<body>
    <?php
        highlight_file("geeks.php");
    ?>
</body>
  
</html>

chevron_right


Output:

Reference: https://php.net/manual/en/function.highlight-file.php



My Personal Notes arrow_drop_up

I am a programmer by hobby

If you like GeeksforGeeks and would like to contribute, you can also write an article using contribute.geeksforgeeks.org or mail your article to contribute@geeksforgeeks.org. See your article appearing on the GeeksforGeeks main page and help other Geeks.

Please Improve this article if you find anything incorrect by clicking on the "Improve Article" button below.




Article Tags :
Practice Tags :


Be the First to upvote.


Please write to us at contribute@geeksforgeeks.org to report any issue with the above content.