What is the purpose of using $_SERVER['PATH_INFO'] in PHP and what potential issues can arise when accessing the start page?

When accessing the start page in PHP, the $_SERVER['PATH_INFO'] variable may not be set, which can lead to potential issues when trying to retrieve the path information. To solve this issue, you can check if the variable is set before using it to avoid any errors. 

if(isset($_SERVER['PATH_INFO'])){
    $pathInfo = $_SERVER['PATH_INFO'];
    // Use $pathInfo variable for further processing
} else {
    // Handle the case when $_SERVER['PATH_INFO'] is not set
}

Keywords

$_SERVER['PATH_INFO'] PHP start page potential issues accessing

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