In PHP, what are the best practices for handling file names with varying dimensions, such as those ending with "x" followed by numbers?

When handling file names with varying dimensions, such as those ending with "x" followed by numbers, it is best to use regular expressions to extract and manipulate the dimensions. This allows for flexibility in handling different file name formats and ensures accurate parsing of the dimensions for further processing. 

$filename = "image_800x600.jpg";
$pattern = '/_(\d+)x(\d+)\./';
if (preg_match($pattern, $filename, $matches)) {
    $width = $matches[1];
    $height = $matches[2];
    echo "Width: $width, Height: $height";
} else {
    echo "Dimensions not found in filename.";
}

Keywords

PHP file names dimensions regular expressions preg_match string manipulation

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