How to convert percentage to decimal in php

How to convert percentage to decimal in php: First create a PHP sample file; then define a percentage; then convert the percentage to decimal through the "(float)$a/100;" method; finally output the converted value through echo of decimals is enough.

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PHP percentage to decimal, php decimal conversion percentage function A Xing Xiao Stack

PHP percent to decimal:

$a = "20.544545%";
echo (float)$a/100;

Result: 0.20544545

php Decimal to percent conversion function:

No digits required:

$n*100.'%';

If there are requirements for the number of novels

(1) You can use sprintf(" .2f", $n*100). '%';

(2) Round first, then convert

$str=round(5.055, 2); // 5.06 
$str1=$str."%"; //5.06%

To use the rounding function round()

Example:

　　$hhl=round(($hh/$totalpj)*100).’%';//好评率
　　$lhl=round(($lh/$totalpj)*100).’%';//良好率
　　$ybl=round(($yb/$totalpj)*100).’%';//一般率
　　$cl=round(($c/$totalpj)*100).’%';//差率
　　$hcl=round(($hc/$totalpj)*100).’%';//很差率

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