Detailed explanation of the usage of php reverse string function strrev() function

strrev()Usage of function is a very fun function. Its main function is to reverse the string head to tail and return the reversed result

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Definition and usage
strrev() function reverses a string.

Syntax
strrev(string)
Parameter Description
string Required. Specifies the string to reverse.
Example

The code is as follows:

<?php 
echo strrev("Hello World!"); 
?>

Output:
!dlroW olleH

For example:

The code is as follows :

<?php 
$str="Hello world"; 
$result=strrev($str); 
echo $result; 
//输出的结果是：dlrow olleH; 
?>

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