What is the significance of the error message "Filename cannot be empty" in PHP when using the getimagesize() function?

The error message "Filename cannot be empty" in PHP when using the getimagesize() function indicates that the function is being called without providing a valid filename as an argument. To solve this issue, ensure that you are passing a valid filename to the getimagesize() function to retrieve information about the image. 

// Example of how to fix the "Filename cannot be empty" error in PHP
$filename = "example.jpg";

// Check if the filename is not empty before calling getimagesize()
if (!empty($filename)) {
    $image_info = getimagesize($filename);
    // Further processing of image information
} else {
    echo "Error: Filename cannot be empty.";
}

Keywords

PHP getimagesize() error message Filename empty

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