1--TEST-- 2Bug #79241: Segmentation fault on preg_match() 3--SKIPIF-- 4<?php if (!extension_loaded("json")) print "skip json extension missing"; ?> 5--FILE-- 6<?php 7 8// if "’" string is used directly without json_decode, 9// the issue does not reproduce 10$text = json_decode('"’"'); 11 12$pattern = '/\b/u'; 13 14// it has to be exact two calls to preg_match(), 15// with the second call offsetting after the tick symbol 16var_dump(preg_match($pattern, $text, $matches, 0, 0)); 17var_dump(preg_match($pattern, $text, $matches, 0, 1)); 18var_dump(preg_last_error() == PREG_BAD_UTF8_OFFSET_ERROR); 19 20echo "\n"; 21 22$text = "VA\xff"; $text .= "LID"; 23var_dump(preg_match($pattern, $text, $matches, 0, 4)); 24var_dump(preg_match($pattern, $text, $matches, 0, 0)); 25var_dump(preg_last_error() == PREG_BAD_UTF8_ERROR); 26 27?> 28--EXPECT-- 29int(0) 30bool(false) 31bool(true) 32 33int(1) 34bool(false) 35bool(true) 36
