The output result is different after strrchr.

{Code ...} the output result should be: {code ...} but why is the output: {code ...} if you remove the h of hbaidu.com from the code {code ...} result output: {code ...} excuse me, why? Thank you.

$str1 = "test:http://google.com,http://hbaidu.com";$str2 = strrchr($str1,"http://");echo $str2;

The output result should be:

http://hbaidu.com

But why is the output:

baidu.com

If you remove the h of the http://hbaidu.com in the code

$str1 = "test:http://google.com,http://baidu.com";$str2 = strrchr($str1,"http://");echo $str2;

The result output is:

http://baidu.com

Excuse me, why? Thank you.

Reply content:

$str1 = "test:http://google.com,http://hbaidu.com";$str2 = strrchr($str1,"http://");echo $str2;

The output result should be:

http://hbaidu.com

But why is the output:

baidu.com

If you remove the h of the http://hbaidu.com in the code

$str1 = "test:http://google.com,http://baidu.com";$str2 = strrchr($str1,"http://");echo $str2;

The result output is:

http://baidu.com

Excuse me, why? Thank you.

We recommend that you first read the strrchr documentation.

Http://php.net/manual/zh/function.strrchr.php

string strrchr ( string $haystack , mixed $needle )

This function returns a part of the haystack string, starting with the last position of the needle until the end of the haystack.

Haystack
Search for the string.

Needle
If the needle contains more than one character, only the first character is used. This behavior is different from strstr ().
If needle is not a string, it is converted to an integer and considered as a sequential value.

That is to say, the following parameter only recognizes the first character, that is, only recognizes yourh,hAll subsequent parameters are ignored. To use strings, use strpos and other functions that support string query.

(Note: the upstairs description is not accurate. this is not the same as trim. strrchr only recognizes the first character. Other characters are invalid, rather than trying one by one)