1--TEST--
2Test extract() function - error condition - Invalid prefix.
3--FILE--
4<?php
5$a = ["1" => "one", "2" => "two", "3" => "three", "4" => "four", "5" => "five"];
6
7try {
8    extract($a, EXTR_PREFIX_ALL, '85bogus');
9} catch (\ValueError $e) {
10    echo $e->getMessage();
11}
12?>
13--EXPECT--
14extract(): Argument #3 ($prefix) must be a valid identifier
15