在PHP中将百分比值转换为十进制值

Question

如何在PHP中将百分比值转换为十进制值以用于计算？

示例:6.15%=.0615

Answer 1

$dec = $pct / 100.00;

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

Answer 2

echo floatval("6.15%") / 100.00;