Skipping For Loop - php

Question

After having a solution to this question.
my code:-
<?php for ($i = 1; $i <= 9; $i++):?>
<div class="col-md-2">
<div class="thumbnail">
<a href="<?php echo $details . $i;?>.php">
<img src="<?php echo $images . $i;?>.png" alt="<?php echo $i;?>">
</a>
</div>
</div>
<?php endfor; ?>
So now assume that there is now image as 8.png, so for loop should skip that and go to next, without showing no image.
Result is.
And I want this
The red Portion should not be displayed.

Answer 1

Since you stated in the comments that the URL to the images is localhost/downloads/vf/images, I will assume that with usage of $_SERVER['DOCUMENT_ROOT'] takes care of the folders outside public (which could be something like C:\users\chirag\htdocs\, but that $_SERVER variable should take care of that. If that's not the case, find the full path and use that instead - as file_exists() requires the system path, not the public path/URL. This also assumes that you use a relative path for the $images variable, which means that you have $images = "/downloads/vf/images/"; and not $images = "localhost/downloads/vf/images/";.
With that assumption, we can now use file_exists() - because that takes the system path, not the URL.
<?php
$images = "/downloads/vf/images/";
for ($i = 1; $i <= 9; $i++):
if (!file_exists($_SERVER['DOCUMENT_ROOT'].$images.$i.".png"))
continue; // Skip this iteration if it can't find the file
?>
<div class="col-md-2">
<div class="thumbnail">
<a href="<?php echo $details . $i;?>.php">
<img src="<?php echo $images . $i;?>.png" alt="<?php echo $i;?>">
</a>
</div>
</div>
<?php endfor; ?>
PHP.net on continue;
PHP.net on $_SERVER
PHP.net on file_exists()

Answer 2

You will have to add a check condition if the image exists or not, there are certain methods like file_exists
<?php for ($i = 1; $i <= 9; $i++):
if(file_exists("file_path")){ ?>
<img src="<?php echo $images . $i;?>.png" alt="<?php echo $i;?>">
<? { php endfor; ?>
This might help you: How to check if image exists

Answer 3

Use this code
File_exists is function check for the file exists or not
<?php for ($i = 1; $i <= 9; $i++):
if (file_exists($images.$i.'.png')) { ?>
<img src="<?php echo $images . $i;?>.png" alt="<?php echo $i;?>">
<?php } endfor; ?>
check this like for more detail
PHP: How to check if image file exists?

Answer 4

You need to use the continue directive. I also suggest you drop the use of : and endfor and all the extra PHP start/end blocks for readability and performance reasons.
<?php
for ($i = 1; $i <= 9; $i++) {
if (!is_readable($images . $i . '.png'))
continue;
echo "<img src=\"${images}${i}.png\" alt=\"$i\">";
}
?>

Answer 5

If you use the keyword continue inside any loop, the rest of the iteration after that would be skipped.
<?php for ($i = 1; $i <= 9; $i++): ?>
<?php if ($i == 8) continue;>
<img src="<?php echo $images . $i;?>.png" alt="<?php echo $i;?>">
<?php endfor; ?>
This keyword is common for a lot of languages.
Also in PHP, the continue accepts a numeric argument which tells it how many iterations it should skip.
PHP continue