What is the function of imagecreatefromjpeg in PHP and how does it handle URLs from external servers?

When using imagecreatefromjpeg in PHP to create an image resource from a JPEG file, it does not directly support URLs from external servers. To handle URLs from external servers, you can use file_get_contents to fetch the image data from the URL and then create the image resource using imagecreatefromstring. 

$url = 'https://example.com/image.jpg';
$imageData = file_get_contents($url);
$image = imagecreatefromstring($imageData);

// Now you can work with the $image resource

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imagecreatefromjpeg PHP URLs external servers handling

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