Convert percent value to decimal value in PHP

问题

How to convert percent value to decimal value in PHP to be used in a computation?

Example: 6.15% = .0615

回答1:

$dec = $pct / 100.00;

// if you actually have a % sign in $pct strip it out
$pct = '15%';
$dec = str_replace('%', '', $pct) / 100.00;

回答2:

echo floatval("6.15%") / 100.00;

回答3:

function percentToDecimal($percent): float
{
    $percent = str_replace('%', '', $percent);
    return $percent / 100.00;
}

来源：https://stackoverflow.com/questions/2389182/convert-percent-value-to-decimal-value-in-php