Item limit in "foreach"

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I have a code that picks up the images from the folder images/FotosdoWhatsAPP, but is displaying all images, would like to display only a quantity X (ex: 5 images).

<?php  
$dirname = "images/FotosWhatsApp/";
$images = glob($dirname."*.{jpg,jpeg,png,gif,JPG,PNG,JPEG,GIF}",GLOB_BRACE);

foreach($images as $image) {
    echo '
<a href="'.$image.'" data-at-1920="'.$image.'">
<div class="div-thumbnail-portfolio" style="background-image: url('.$image.');background-repeat: no-repeat;background-size: cover; background-position: center center; " class="thumbnail-detalhe">

</div>
</a>
    ';

    /*<a href="'.$image.'" rel="gallery" class="fresco" data-fresco-group="example">
    <img src="'.$image.'" style="background-image: url('.$image.');background-repeat: no-repeat;background-size: cover; background-position: center center; " class="thumbnail-detalhe"/>
</a>*/
}

?>
php loop

2 answers

5


Has some form:

Don’t use the foreach, use the for:

$images = glob($dirname."*.{jpg,jpeg,png,gif,JPG,PNG,JPEG,GIF}",GLOB_BRACE);
for ($i = 0; count($images); $i++) {
    echo '
<a href="'.$images[i].'" data-at-1920="'.$images[i].'">

Create an accountant and put a condition (I find inefficient and ugly):

$images = glob($dirname."*.{jpg,jpeg,png,gif,JPG,PNG,JPEG,GIF}",GLOB_BRACE);
$i = 0;
foreach($images as $image) {
    echo '
<a href="'.$image.'" data-at-1920="'.$image.'">
...
if (++$i > 4) break;

Use a condition on the key array (I find inefficient and ugly):

$images = glob($dirname."*.{jpg,jpeg,png,gif,JPG,PNG,JPEG,GIF}",GLOB_BRACE);
foreach($images as $key => $image) {
    echo '
<a href="'.$image.'" data-at-1920="'.$image.'">
...
if ($key > 4) break;

Limit the array before entering the loop (compensates in some cases):

$images = array_slice(glob($dirname."*.{jpg,jpeg,png,gif,JPG,PNG,JPEG,GIF}",GLOB_BRACE), 4);
foreach($images as $image) {
    echo '
<a href="'.$image.'" data-at-1920="'.$image.'">

I put in the Github for future reference.

3

An alternative is to apply together the classes DirectoryIterator and LimitIterator:

$directory = new DirectoryIterator('./data');
$firstFiveFiles = new LimitIterator($directory, 0, 5);

foreach ($firstFiveFiles as $file) {
    ...
}

But obviously the complexity of it to replace a mere if usually disable the solution. It is up to you also adapt the use of DirectoryIterator, or analog, to select only the desired files.

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