Clever Geek Handbook

Extract EXIF ​​data using PHP

I am creating a website for a client who needs a photo gallery and I was going to use the filename as the alt tag, but he wants me to use the keywords he put in the EXIF ​​data. Since I am not a photographer. I don't really understand the technical side of this, but I have a script running so far to get the filename and I hope it will be as easy as changing a few lines of code to get EXIF ​​instead of filename. Here is my code:

<?php
//The directory to your images folder, with trailing slash
$dir = "cms/gallery/photo/";

//Set the extensions you want to load, seperate by a comma.
$extensions = "jpeg,jpg";

//Set the number of images you want to display per page
$imagesPerPage = 3;

//Set the $page variable
if(!isset($_GET['page'])){
    $page = 1;
}else{
    $page = $_GET['page'];
}

//Load all images into an array
$images = glob($dir."*.{".$extensions."}", GLOB_BRACE);

//Count the number of images
$totalImages = count($images);

//Get the total pages
$totalPages = ceil($totalImages / $imagesPerPage);

//Make sure the page you are on is not greater then the total pages available.
if($page > $totalPages){
    //Set the currnet page to the total pages.
    $page = $totalPages;
}

//Now find where to start the loading from
$from = ($page * $imagesPerPage) - $imagesPerPage;

//Now start looping
for($i = $from; $i < ($from + $imagesPerPage); $i++){
    //We need to make sure that its within the range of totalImages.
    if($i < $totalImages){
        $filename = explode('.', basename($images[$i])); // GET EXIF DESCRIPTION AS $FILENAME
        //Now we can display the image!
        echo "

            <div class='galleryCellHolder'>
                <div class='galleryCell'>
                    <a class='fancybox' rel='group' href='{$images[$i]}'><img class='galleryPhoto' src='{$images[$i]}' alt='" . $filename[0] . "'></a>
                </div>
            </div>

        ";
    }
}

//Now to display the page numbers!
for($p = 1; $p <= $totalPages; $p++){
    if($p == $page){
        $tmp_pages[] = "<a class='noPagination'>{$p}</a>";
    }else{
        $tmp_pages[] = "<a class='pagination' href='?page={$p}'>{$p}</a>";
    }
}
?>
<div class="clearLeft"></div>
<div id="pagination">
    <?php

    //Now display pages, seperated by a hyphon.
    echo "<br />" . implode("", $tmp_pages);

    ?>
</div>
+3


source to share


1 answer


Do it:

$filedata = exif_read_data($images[$i]);
if(is_array($filedata) && isset($filedata['ImageDescription'])){
    $filename = $filedata['ImageDescription'];
} else{
    $filename = explode('.', basename($images[$i]));
    $filename = $filename[0];
}


If FileName

not in exif data, $filename

will contain the filename from the path.

The correct name may have a different variable than $filedata['ImageDescription']

. It can also be in, for example, $filedata['FileName']

or $filedata['Title']

. See for yourself which one works

+1


source






More articles:


All Articles