strripos
strspn
String Functions
PHP Manual

# strrpos

(PHP 4, PHP 5)

strrpos — Find position of last occurrence of a char in a string

### Description

int strrpos ( string `$haystack` , string `$needle` [, int `$offset` ] )

Returns the numeric position of the last occurrence of `needle` in the `haystack` string. Note that the needle in this case can only be a single character in PHP 4. If a string is passed as the needle, then only the first character of that string will be used.

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

It is easy to mistake the return values for "character found at position 0" and "character not found". Here's how to detect the difference:

`<?php
// in PHP 4.0.0 and newer:
$pos = strrpos($mystring, "b");
if ($pos === false) { // note: three equal signs
// not found...
}
// in versions older than 4.0.0:
$pos = strrpos($mystring, "b");
if (is_bool($pos) && !$pos) {
// not found...
}
?>`

If `needle` is not a string, it is converted to an integer and applied as the ordinal value of a character.

> Note: As of PHP 5.0.0 `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.

> Note: The `needle` may be a string of more than one character as of PHP 5.0.0.

### Parameters

`haystack`

`needle`

`offset`

### Return Values

### See Also

- strpos()
- strripos()
- strrchr()
- substr()
- stristr()
- strstr()

strripos
strspn
String Functions
PHP Manual