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# 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.

Advarsel
Denne funktion returnerer muligvis en Boolean `FALSE`, men kan også returnere en ikke-Booleansk værdi som evalueres til `FALSE`, så som 0 eller "". Læs venligst sektionen om Booleans for mere information. brug === operatoren for at teste den værdi som returneres af denne funktion.

Eksempel 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)

The offset parameter may be specified to begin searching an arbitrary number of characters into the string.

Negative offset values will start the search at offset characters from the start of the string.

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

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