PHP stripos() Function

Example

Find the position of the first occurrence of "php" inside the string:

<?php
echo stripos("I love php, I love php too!","PHP");
?>
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Definition and Usage

The stripos() function finds the position of the first occurrence of a string inside another string.

Note: The stripos() function is case-insensitive.

Note: This function is binary-safe.

Related functions:

  • strripos() - Finds the position of the last occurrence of a string inside another string (case-insensitive)
  • strpos() - Finds the position of the first occurrence of a string inside another string (case-sensitive)
  • strrpos() - Finds the position of the last occurrence of a string inside another string (case-sensitive)

Syntax

stripos(string,find,start)

Parameter Values

Parameter Description
string Required. Specifies the string to search
find Required. Specifies the string to find
start Optional. Specifies where to begin the search

Technical Details

Return Value: Returns the position of the first occurrence of a string inside another string, or FALSE if the string is not found. Note: String positions start at 0, and not 1.
PHP Version: 5+