$total = 1225.49.5;
$total = floor( ($total*0.95)* 10 ) /10;$total = sprintf('%.1f', (float)$total);
echo $total;
輸出結果:1225.4
php保留小數點後一位的幾種方法
$total = number_format(2/3,1); // 1表示保留的是小數點後一位,會四捨五入
echo $total ."
";
$total_1 =sprintf( "%.1f ",2/3); // 1f表示小數點後一位
echo $total_1 ."
";
$total_2=printf( "%.1f ",2/3);
echo $total_2."
";
?>