to check the image availability

[sujith787]

i want to check wheater a image (jpg and gif) file exist or not. if exist i want to display the image else i want skip that image display.

how can i check the availability.

[tech_support]

if (file_exists([imagename]) {
//do stuff here like
echo '<img src="imagename" alt="">';
}

[djr33]

Or, use the shorter (but more confusing) syntax of (condition?if:else).


echo '<img src="'.(file_exists($img)?$img:$default).'">';

It's a bit weird to deal with, but can make the code look much cleaner.

[alexjewell]

Of course, the above would require those 2 variables to be declared (just to clarify)...$img would equal the image you want to display if it exists and $default would be the image to display if $img doesn't exist.

[djr33]

(isset($img)?(file_exists($img)?$img:(isset($default)?$default:'defaultstring')):(isset($default)?$default:'defaultstring'));
Fun. Ha.

Though, really, just using a string as $default makes more sense anyway, unless you have it in several locations.

Either way, I'd assume these would be defined somewhere, or the script would be pointless.

[alexjewell]

Dan, are you in the business of giving people headaches? :p

What a masterpiece. Haha.

[djr33]

Actually, easier like this--
(isset($img)?(file_exists($img)?$img:@$default):@$default);


But, here's a bit of a rewrite that will help more--

<?php
$imgf = @$default;
if (isset($img)) {
if (@getimagesize($img)) {
$imgf = $img;
}}
$img = $imgf;
?>

That will check if the image is a valid image, not just if it exists as a file.