How to Pass Variables to Included PHP Files After a Version Update?

Passing Variables to Included PHP Files

Issue Summary

Passing variables to included PHP files using common methods has become problematic after a PHP version update. The variable, specifically $_SERVER['PHP_SELF'], needs to be set in the calling file and accessed by the included file.

Analysis and Solution

Despite the commonly believed notion of needing specific measures to pass variables to included files, PHP's inherent behavior allows variables declared before include statements to be available in the included files.

Important Note: Passing variables to functions that call include statements

However, passing variables to functions that use include statements internally requires a technique called extract().

Approach Using extract()

Consider the following code snippet:

<code class="php">function includeWithVariables($filePath, $variables = array(), $print = true)
{
    // Extract the variables to a local namespace
    extract($variables);

    // Start output buffering
    ob_start();

    // Include the template file
    include $filePath;

    // End buffering and return its contents
    $output = ob_get_clean();
    if (!$print) {
        return $output;
    }
    echo $output;
}</code>

This function takes an include file path, an optional array of variables, and a print flag.

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