John Davidson

Message:

Please note I don't mean if its meant to be there. I mean if an image cannot be found/located.

For example where the first one below, if monoph.png didnt exist is there a way to display a placeholder?

if ($d == 1 && $h >= 1 && $h < 14) $img = 'img/hosts/monophy.png';

else if ($d == 1 && $h >= 14 && $h < 16) $img = 'img/hosts/mon24.jpg';

else if ($d == 1 && $h >= 16 && $h < 18) $img = 'img/hosts/mon46.jpg';

else if ($d == 1 && $h >= 18 && $h < 20) $img = 'img/hosts/mon68.jpg';

else if ($d == 1 && $h >= 20 && $h < 22) $img = 'img/hosts/mon810.jpg';

else if ($d == 1 && $h >= 22 && $h < 24) $img = 'img/hosts/MON1012.png';

else if ($d == 1 && $h >= 19) $img = 'img/hosts/monophy.png';

else if ($d == 2 && $h < 0) $img = 'img/hosts/monophy.png';

---

My Answer:
You can use the `getimagesize()` function in PHP to check if the image exists before trying to display it. If the image does not exist, you can then display a placeholder image instead.

Here is an example of how you can modify your code to include this check:

php
if ($d == 1 && $h >= 1 && $h < 14) $img = 'img/hosts/monophy.png';
else if ($d == 1 && $h >= 14 && $h < 16) $img = 'img/hosts/mon24.jpg';
else if ($d == 1 && $h >= 16 && $h < 18) $img = 'img/hosts/mon46.jpg';
else if ($d == 1 && $h >= 18 && $h < 20) $img = 'img/hosts/mon68.jpg';
else if ($d == 1 && $h >= 20 && $h < 22) $img = 'img/hosts/mon810.jpg';
else if ($d == 1 && $h >= 22 && $h < 24) $img = 'img/hosts/MON1012.png';
else if ($d == 1 && $h >= 19) $img = 'img/hosts/monophy.png';
else if ($d == 2 && $h < 0) $img = 'img/hosts/monophy.png';

// Check if the image exists
if (!file_exists($img)) {
$img = 'img/placeholder.jpg'; // Placeholder image path
}

echo '';


In this code snippet, we first set the image path based on your existing conditions. Then, we use the `file_exists()` function to check if the image file exists. If the image does not exist, we set the image path to a placeholder image. Finally, we display the image using an `` tag with the updated image path.