PHP: GeSHi Syntax Highlighter Enable / Disable Line Numbers

GeSHi is a syntax highlighter for PHP that allows you to highlight and display source code in web pages. To enable or disable line numbers in GeSHi, you can use the enable_line_numbers method.

Here is an example of how you can enable line numbers in GeSHi:

<?php

// Include the GeSHi library
include 'geshi.php';

// Create a new GeSHi object
$geshi = new GeSHi('<?php echo "Hello, world!"; ?>', 'php');

// Enable line numbers
$geshi->enable_line_numbers(GESHI_FANCY_LINE_NUMBERS);

// Display the highlighted code
echo $geshi->parse_code();

This will enable line numbers in the highlighted code, using the GESHI_FANCY_LINE_NUMBERS style.

To disable line numbers in GeSHi, you can pass the GESHI_NO_LINE_NUMBERS constant to the enable_line_numbers method:

<?php

// Include the GeSHi library
include 'geshi.php';

// Create a new GeSHi object
$geshi = new GeSHi('<?php echo "Hello, world!"; ?>', 'php');

// Disable line numbers
$geshi->enable_line_numbers(GESHI_NO_LINE_NUMBERS);

// Display the highlighted code
echo $geshi->parse_code();

This will disable line numbers in the highlighted code.

Overall, the enable_line_numbers method is a useful tool for enabling or disabling line numbers in GeSHi. It allows you to customize the appearance of the highlighted code and control whether line numbers are displayed or not.