How to convert decimal to percent in php

php method to convert decimals to percentages: [function xxx($n) {return $n * 100.'%'}]. If you want to convert a percentage to a decimal, you can use [(float)$a/100;] to achieve this.

The operating environment of this article: windows10 system, php 7, thinkpad t480 computer.

PHP percent to decimal conversion:

<?php 
$a = "20.544545%"; 
echo (float)$a/100; 
?>

php decimal conversion percentage function:

function xx($n) 
{ 
return $n*100.'%'; 
}

If there are requirements for the number of decimal places

sprintf("%01.2f", $n*100).'%';

Round first, then convert

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

Recommended learning: php training

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