PHP中number_format()函数的用法讲解

<?php echo number_format("1000000")."<br>"; echo number_format("1000000",2)."<br>"; echo number_format("1000000",2,",","."); ?>

number_format( _number,decimals,decimalpoint,separator_ )

<?php $num = 1999.9; $formattedNum = number_format($num)."<br>"; echo $formattedNum; $formattedNum = number_format($num, 2); echo $formattedNum; ?>