PHP Classes

ISBN check: Validate ISBN-10, ISBN-13 and convert between them

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isbncheck 0.3Public Domain5Validation
Description 

Author

Keith Nunn

This is a simple class to verify whether a given book's ISBN (International Standard Book Number) code is valid. Supports ISBN-10 and ISBN-13 and GTIN-14. Will perform conversions on valid numbers when possible.

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  Performance   Level  
Name: Keith Nunn <contact>
Classes: 1 package by
Country: Canada Canada

Level 2 StarStar

Example

<?php
    echo "<html><body>\n";

    /*
     * include class and create object
     */
    include_once 'isbntest.class.php';
    $currISBN = new ISBNtest;

    /*
     * did we get an ISBN?
     */
    if ($_REQUEST[isbn]) {
        $currISBN->set_isbn($_REQUEST[isbn]);
        if ($currISBN->valid_isbn10() === TRUE) {
            echo "<p>The ISBN-10 " . $currISBN->get_isbn10() . " is <span style=\"color: green;\">valid</span>.</p>\n";
        } else {
            echo "<p>The ISBN-10 " . $currISBN->get_isbn10() . " is <span style=\"color: red;\">invalid</span>.</p>\n";
            echo "<p>The error reported is:<br /> " . $currISBN->get_error() . "</p>\n";
        }
        if ($currISBN->valid_isbn13() === TRUE) {
            echo "<p>The ISBN-13 " . $currISBN->get_isbn13() . " is <span style=\"color: green;\">valid</span>.</p>\n";
        } else {
            echo "<p>The ISBN-13 " . $currISBN->get_isbn13() . " is <span style=\"color: red;\">invalid</span>.</p>\n";
            echo "<p>The error reported is:<br /> " . $currISBN->get_error() . "</p>\n";
        }
    }

    /*
     * input form
     */
    echo "<FORM ACTION=\"" . $PHP_SELF . "\" METHOD=\"get\">\n";
    echo "<B>isbn</B>\n";
    echo "<INPUT TYPE=\"Text\" NAME=\"isbn\" SIZE=\"15\" MAXLENGTH=\"15\" VALUE=\"" . $_REQUEST[isbn] . "\">\n";
    echo "<INPUT TYPE=\"Submit\" NAME=\"submit\" VALUE=\"Submit\">\n";
    echo "</form>\n";

    echo "</body></html>\n";

?>


  Files folder image Files (3)  
File Role Description
Accessible without login Plain text file cli_example.php Example just an example to show basic usage.
Accessible without login Plain text file example.php Example an example script showing usage
Plain text file isbntest.class.php Class class that does the ISBN checking

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Rank:456
 
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16 years ago (Przemek Czekaj)		70%StarStarStarStar
 

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phpReview is a complete Free Reviewing system, entirely written in PHP. Originally made for book-reviews for the NL.Linux.org site it was redesigned to be a general reviewin g system, including voting, reactions and about anything else found in a good reviewing system.

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