PHP Manual
Prev |  | Next

# strripos

(PHP 5)

strripos -- Find position of last occurrence of a case-insensitive string in a string

## Description

int strripos ( string haystack, string needle [, int offset])

Returns the numeric position of the last occurrence of `needle` in the `haystack` string. Unlike strrpos(), strripos() is case-insensitive. Also note that string positions start at 0, and not 1.

Note that the `needle` may be a string of one or more characters.

If `needle` is not found, `FALSE` is returned.

Warning
This function may return Boolean `FALSE`, but may also return a non-Boolean value which evaluates to `FALSE`, such as `0` or "". Please read the section on Booleans for more information. Use the === operator for testing the return value of this function.

Example 1. A simple strripos() example
`<?php $haystack = 'ababcd'; $needle = 'aB'; $pos = strripos($haystack, $needle); if ($pos === false) { echo "Sorry, we did not find ($needle) in ($haystack)"; } else { echo "Congratulations!\n"; echo "We found the last ($needle) in ($haystack) at position ($pos)"; } ?>`
Outputs:
    Congratulations!
       We found the last (aB) in (ababcd) at position (2)

`offset` may be specified to begin searching an arbitrary number of characters into the string. Negative values will stop searching at an arbitrary point prior to the end of the string.

See also strrpos(), strrchr(), substr(), stripos() and stristr().

Prev | Home | Next
strrev | Up | strrpos