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PHP show_source() Function

❮ PHP Misc Reference


Using a test file ("test.php") to output the file with the PHP syntax highlighted:


The browser output of the code above could be (depending on the content in your file):

echo ("test.php");

The HTML output of the code above could be (View Source):

<code><span style="color: #000000">
<br />&lt;body&gt;
<br /><span style="color: #0000BB">&lt;?php
<br /></span><span style="color: #007700">echo&nbsp;(</span><span style="color: #DD0000">"test.php"</span><span style="color: #007700">);
<br /></span><span style="color: #0000BB">?&gt;
<br /></span>&lt;/body&gt;
<br />&lt;/html&gt;</span>
Try it Yourself »

Definition and Usage

The show_source() function outputs a file with the PHP syntax highlighted. The syntax is highlighted by using HTML tags.

The colors used for highlighting can be set in the php.ini file or with the ini_set() function.

show_source() is an alias of highlight_file().

Note: When using this function, the entire file will be displayed - including passwords and any other sensitive information!



Parameter Values

Parameter Description
filename Required. Specifies the file to display
return Optional. If set to TRUE, this function will return the highlighted code as a string, instead of printing it out. Default is FALSE

Technical Details

Return Value: If the return parameter is set to TRUE, this function returns the highlighted code as a string instead of printing it out. Otherwise, it returns TRUE on success, or FALSE on failure
PHP Version: 4+
Changelog: As of PHP 4.2.1, this function is now also affected by safe_mode and open_basedir. However, safe_mode was removed in PHP 5.4.
PHP 4.2 - The return parameter was added.

❮ PHP Misc Reference