What is the difference between PHP Strrpos () and the Strripos () function?

Strripos () function

Definition and usage
The Strripos () function finds the position of the last occurrence of a string in another string.
If successful, returns the position, otherwise false.
Grammar
Strrpos (String,find,start)

Parameters
Describe
String
Necessary. Specifies the string to be searched.
Find
Necessary. Specifies the character to find.
Start
Optional. Specify where to start the search.
Hints and Notes
Note: The function is not case sensitive.
Example:

Copy the code code as follows:

<php
Echo Strripos ("Hello world!", "WO");
?>

Output: 6
Strrpos () function
Definition and usage
The Strrpos () function finds the position of the last occurrence of a string in another string.

If successful, returns the position, otherwise false.

Grammar
Strrpos (String,find,start)

Parameters
Describe
String
Necessary. Specifies the string to be searched.
Find
Necessary. Specifies the character to find.
Start
Optional. Specify where to start the search.
Hints and Notes
Note: The function is case-sensitive. For case-insensitive lookups, use Strripos ().
Example

Copy the code code as follows:

<?php
Echo Strrpos ("Hello world!", "Wo");
?>
Output:
6
Verify that the link is a link to the HTTP protocol with Strrpos

Copy the code code as follows:

<?php
$url = "http://www.baidu.com";
if (Strrpos ($url, '/http ')!== 0)
echo "link is a link to the HTTP protocol";
?>

What is the difference between PHP Strrpos () and the Strripos () function?