How to remove percent sign in php

How to remove the percent sign in php: 1. Create a PHP sample file; 2. Define a percentage; 3. Remove the percent sign through "echo (float)$a/100;".

The operating environment of this article: windows7 system, PHP7.1 version, DELL G3 computer

How to remove the percent sign in php?

PHP percent sign to decimal

Code such as:

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

Related introduction:

Percent sign, the symbol is %. A symbol that represents an integer whose denominator is 100.

What it represents:

Divide a whole into 100 equal parts, and the number of parts occupied by one part is the expression method when the denominator of a fraction is 100, which can also be written as x/ 100.

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