strripos() function
Definition and usage
The strripos() function finds where the string last appears in another string.
Returns the position if successful, otherwise returns false.
grammar
strrpos(string,find,start)
| parameter | describe |
|---|---|
| string | Required. Specifies the string being searched. |
| find | Required. Specifies the characters to be searched. |
| start | Optional. Specify the location to start the search. |
Tips and comments
Note: This function is case-insensitive.
example:
Copy the codeThe code is as follows:
<?php
echo strripos("Hello world!","WO");
?>
Output: 6
strrpos() function
Definition and usage
The strrpos() function finds where the string last appears in another string.
Returns the position if successful, otherwise returns false.
grammar
strrpos(string,find,start)
| parameter | describe |
|---|---|
| string | Required. Specifies the string being searched. |
| find | Required. Specifies the characters to be searched. |
| start | Optional. Specify the location to start the search. |
Tips and comments
Note: This function is case sensitive. For case-insensitive searches, use strripos().
example
Copy the codeThe code is as follows:
<?php
echo strrpos("Hello world!","wo");
?>
Output:
6
Use strrpos to verify whether the link is a link to the http protocol
Copy the codeThe code is as follows:
<?php
$url="";
if (strrpos($url, 'http://') !== 0)
echo "Link is a link to the http protocol";
?>