How to use php strstr function

The strstr() function is a built-in function in PHP. The syntax is strstr(string,search,before_search). It is used to search whether a string exists in another string. If so, return the string and the remaining part. , otherwise return FALSE. This function is case-sensitive.

php How to use strstr() function?

strstr() function searches whether a string exists in another string. If so, returns the string and the remaining parts, otherwise returns FALSE.

Note: This function is binary safe; this function is case-sensitive.

Syntax

strstr(string,search,before_search)

Parameters: The function accepts three parameters, as shown in the above syntax, of which the first two must be provided parameters, the third parameter is optional.

● String: required. Specifies the string to be searched for.

● Search: required. Specifies the string to search for. If the argument is a number, searches for characters that match the ASCII value for that number.

●before_search: Optional. A Boolean value with a default value of "false". If set to "true", it returns the portion of the string preceding the first occurrence of the search parameter.

Return value: This function returns the rest of the string (from the matching point), or FALSE if the string being searched is not found.

Let’s take a look at how to use the php strstr() function through an example.

Example 1:

<?php
echo strstr("Hello world!","o");
?>

Output:

o world!

Example 2:

<?php
echo strstr("Hello world!","o", true);
?>

Output:

Hell

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