Home Backend Development PHP Tutorial PHP uses strstr function to get all characters after a specified string

PHP uses strstr function to get all characters after a specified string

Jul 29, 2016 am 09:07 AM
echo php search string

The example in this article describes how PHP uses the strstr() function to obtain all characters after a specified string. Share it with everyone for your reference, the details are as follows:

PHP’s strstr() function can search for the first occurrence of a string in another string and return the remaining part of the string.

strstr() function is defined as follows:

strstr(string,search,before_search)

Parameter description:

string required. Specifies the string to be searched for.

search
Required. Specifies the string to be searched for.
If this parameter is a number, search for characters matching the ASCII value corresponding to this number.

before_search
Optional. The default value is a Boolean value of "false".
If set to "true", it will return the part of the string before the first occurrence of the search parameter.

The sample code is as follows:

<&#63;php
 echo strstr("欢迎来到本站","脚本");
 echo "<br/>";
 echo strstr("Welcome To www.jb51.net","jb51");
 echo "<br/>";
 echo strstr("123456789","5");
?>

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The running result is as follows:

本站
jb51.net
56789

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Added:

The third optional parameter of the strstr() function can only be used after PHP5.3 version, such as:

echo strstr("123456789","5",true);
//输出:1234

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For more information about PHP string operations, please see the special topic on this site: "Summary of PHP String Usage"

I hope this article will be helpful to everyone in PHP programming.

The above introduces how PHP uses the strstr function to obtain all characters after a specified string, including the relevant content. I hope it will be helpful to friends who are interested in PHP tutorials.

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