Convert::toBytes()

\nn\t3::Convert()->toBytes();

Converts a human-readable specification of bytes/megabytes into a byte integer. Extremely tolerant when it comes to spaces, upper/lower case and commas instead of periods.

\nn\t3::Convert('1M')->toBytes(); // -> 1048576
\nn\t3::Convert('1 MB')->toBytes(); // -> 1048576
\nn\t3::Convert('1kb')->toBytes(); // -> 1024
\nn\t3::Convert('1.5kb')->toBytes(); // -> 1024
\nn\t3::Convert('1.5Gb')->toBytes(); // -> 1610612736

For the reverse path (bytes to human-readable notation such as 1024 -> 1kb) there is a practical there is a practical Fluid ViewHelper in the core:

{fileSize->f:format.bytes()}

| @return integer

Source Code public function toBytes() {
	$input = strtoupper($this->initialArgument);
	$units = ['B', 'KB', 'MB', 'GB', 'TB', 'PB'];
	$input = str_replace(',', '.', $input);
	if (substr($input, -1) == 'M') $input .= 'B';
	$number = substr($input, 0, -2);
	$suffix = substr($input,-2);
	if(is_numeric(substr($suffix, 0, 1))) {
		return preg_replace('/[^\d]/', '', $input);
	}
	$exponent = array_flip($units)[$suffix] ?? null;
	if($exponent === null) {
		return null;
	}
	return $number * (1024 ** $exponent);
}        
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