How can the content of an input field be compared with a variable from another PHP file?

To compare the content of an input field with a variable from another PHP file, you can use the $_POST superglobal to retrieve the input field value and include the PHP file containing the variable you want to compare it with. Then, you can simply compare the two values using an if statement to determine if they match. 

<?php
// Retrieve the input field value using $_POST
$input_value = $_POST['input_field'];

// Include the PHP file containing the variable to compare with
include 'other_file.php';

// Compare the input value with the variable from the other file
if ($input_value == $variable_from_other_file) {
    echo "Values match!";
} else {
    echo "Values do not match.";
}
?>

Keywords

PHP input field variable comparison include file

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