The following describes the usage of strrpos and strripos functions in php in detail. For more information, see
Strripos () function
Definition and usage
The strripos () function is used to locate the last occurrence of a string in another string.
If the operation is successful, the location is returned. otherwise, false is returned.
Syntax
Strrpos (string, find, start)
Parameters |
Description |
String |
Required. Specifies the string to be searched. |
Find |
Required. Specifies the characters to be searched. |
Start |
Optional. Specifies the location where the search starts. |
Tips and comments
Note: This function is case insensitive.
Example:
The code is as follows:
Echo strripos ("Hello world! "," WO ");
?>
Output: 6
Strrpos () function
Definition and usage
The strrpos () function is used to locate the last occurrence of a string in another string.
If the operation is successful, the location is returned. otherwise, false is returned.
Syntax
Strrpos (string, find, start)
Parameters |
Description |
String |
Required. Specifies the string to be searched. |
Find |
Required. Specifies the characters to be searched. |
Start |
Optional. Specifies the location where the search starts. |
Tips and comments
Note: This function is case sensitive. Use strripos () to perform case-insensitive searches ().
Example
The code is as follows:
Echo strrpos ("Hello world! "," Wo ");
?>
Output:
6
Use strrpos to verify whether the link is an http link
The code is as follows:
$ Url = "http://www.baidu.com ";
If (strrpos ($ url, 'http ://')! = 0)
Echo "link for http ";
?>