How can PHP handle errors when trying to access a non-existent text file while reading image descriptions?

When trying to access a non-existent text file while reading image descriptions, PHP may throw an error or warning. To handle this situation, you can use the `file_exists()` function to check if the file exists before trying to read it. If the file doesn't exist, you can display a custom error message or handle the situation accordingly. 

$file = 'image_descriptions.txt';

if (file_exists($file)) {
    // Read the file and process image descriptions
    $descriptions = file_get_contents($file);
    // Further processing of image descriptions
} else {
    echo "Error: Image descriptions file not found.";
}

Keywords

PHP error handling file_exists file_get_contents exception handling

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