How to use php stripos function?

php stripos() function is used to find the first occurrence of a string in another string (not case-sensitive). The syntax is stripos(string,find,start). If the string is not found, it will be returned. FALSE.

How to use the php stripos() function?

The stripos() function finds the first occurrence of a string in another string (case-insensitive).

Syntax:

stripos(string,find,start)

Parameters:

● string: required. Specifies the string to search for.

● find: required. Specifies the characters to search for.

● start: optional. Specifies the location from which to start the search.

Return value: Returns the position of the first occurrence of a string in another string, or returns FALSE if the string is not found.

Note: stripos() function is case-insensitive; this function is binary safe. String positions start at 0, not 1.

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

Example 1:

<?php
echo stripos("You love php, I love php too!","PHP")
?>

Output:

9

Example 2:

<?php
echo stripos("PHP is a good development language!","php");
?>

Output:

0

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