How can one verify the length of a value from a form input in PHP?

To verify the length of a value from a form input in PHP, you can use the strlen() function to determine the number of characters in the input value. You can then compare this length to a desired minimum or maximum length to ensure it meets your requirements. 

$input = $_POST['input']; // Assuming 'input' is the name of the form input field

$minLength = 5; // Minimum length required
$maxLength = 10; // Maximum length allowed

$inputLength = strlen($input);

if ($inputLength < $minLength || $inputLength > $maxLength) {
    echo "Input length must be between $minLength and $maxLength characters.";
} else {
    // Input length is valid, proceed with further processing
}

Keywords

PHP form input value length validation strlen

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