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strrchr

PHP function Edit on GitHub ✎

(PHP 4, PHP 5, PHP 7, PHP 8)

Find the last occurrence of a character in a string

Description

strrchr(string $haystack, string $needle, bool $before_needle = false): string|false

This function returns the portion of haystack which starts at the last occurrence of needle and goes until the end of haystack.

Parameters

haystack

The string to search in

needle

If needle contains more than one character, only the first is used. This behavior is different from that of strstr().

Non-string

before_needle

If true, strrchr() returns the part of the haystack before the last occurrence of the needle (excluding the needle).

Return Values

This function returns the portion of string, or false if needle is not found.

Changelog

Version	Description
8.3.0	The `before_needle` parameter was added.
8.0.0	Passing an Integer as `needle` is no longer supported.
7.3.0	Passing an Integer as `needle` has been deprecated.

Examples

strrchr() example

php

<?php
$ext = strrchr('somefile.txt', '.');
echo "file extension: $ext \n";
$ext = $ext ? strtolower(substr($ext, 1)) : '';
echo "file extension: $ext";
?>

The above example will output something similar to:

output

file extension: .txt
file extension: txt