PHP | show_source() Function
Last Updated :
03 Jul, 2019
The show_source() function is an inbuilt function in PHP which is used to return a file with the PHP syntax highlighted. The syntax is highlighted by using HTML tags.
Syntax:
show_source( $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 display.
- $return: It is optional 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: If it is set to TRUE then it returns the highlighted code as string. It will return TRUE on success or return FALSE on failure.
Note:
- This function is available for PHP 4.0.0 and newer version.
- The color 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.
Below programs illustrate the show_source() function in PHP:
Program 1: Below program save the file using file name show_source.php
<html>
<body>
<?php
show_source("show_source.php");
?>
</body>
</html>
|
Output:
Program 2: Below program save the file using file name source_code.php
<?php
$user = <<<XML
<user>
<username>Geeks123</username>
<name>GeeksforGeeks</name>
<phone>+91-XXXXXXXXXX</phone>
<detail font-color="blue" font-size="24px">
Noida, India
</detail>
</user>
XML;
$xml = simplexml_load_string($user);
foreach($xml->children() as $child) {
echo "child node:" . $child . "</br>";
}
?>
|
main.php
<!DOCTYPE html>
<html>
<body>
<?php
show_source("source_code.php");
?>
</body>
</html>
|
Output:
Reference: https://www.php.net/manual/en/function.show-source.php
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