在PHP 中使用round()函数显示一个数字到两位小数 round()函数用于舍入数字或浮点数。我们可以将数字四舍五入到所需的小数位。使用此函数的正确语法如下 round($number,$decimalPlaces,$mode); 示例代码: <?php$number1=5;$number2=34.6;$number3=15439.093;$format_number1=round($number1,2);$format_number...
Round numbers to two decimals: <?php echo(round(4.96754,2) . "");echo(round(7.045,2) . ""); echo(round(7.055,2)); ?> Try it Yourself » Example Round numbers using the constants: <?php echo(round(1.5,0,PHP_ROUND_HALF_UP) . ""); echo(round(-1.5,0,PHP_ROUND_HALF_UP...
Round off or trucate double to two decimal places Hello,I have an issue with the converting the user input from the xml to two decimal places.The user can input any number from the xml. But i need to consider the value only if it is double .Lets say, I have valid range for the ...
Then we are using the predefined function named as round () which is round off floating values up to two decimal places and then compare it. Here We are using the predefined round() function to get our expected result in the correct way....
Lastly, to compensate for multiplying by 100 earlier, now we must divide by 100, or in this case, multiply by .01. This moves the decimal point back 2 places to it's original place and gives us the rounded value of 5.12. We can also round to other values, such as the thousandths,...
'function roundout($value, $places = 0) {': This line defines a function named 'roundout' that takes two parameters: '$value' (the number to be rounded) and '$places' (the number of decimal places to round to, defaulting to 0 if not provided). 'if ($places < 0) { $places =...
function format_number($str,$decimal_places='2',$decimal_padding="0"){ /* firstly format number and shorten any extra decimal places */ /* Note this will round off the number pre-format $str if you dont want this fucntionality */ ...
3.1.PHP_ROUND_HALF_UP: This mode will tell the method to round the number away from zero. 3.2.PHP_ROUND_HALF_DOWN: This mode will tell the method to round the number towards zero. 3.3.PHP_ROUND_HALF_EVEN: This mode will tell the method to round the number towards the nearest even ...
As for 0.05 drop, the difference "lost" using two decimal places is -0.003 * 16 = -0.048 and you round that off to -0.05. So that's where it came from. It sounds like you expect the rounding to carry from one number to the next? That's not how rounding works. That's why you...
php// Accepts one parameter of any type as inputprint_r('I'm a parameter'); // Accepts two numeric parameters as input // the first is a rounded number, // the second is the number of decimal places to leave round(10.1245, 3); // 10.125 // Accepts three string parameters as ...