1--TEST-- 2Bug #80839: PHP problem with JIT 3--INI-- 4opcache.enable=1 5opcache.enable_cli=1 6opcache.jit_buffer_size=1M 7opcache.jit=function 8--EXTENSIONS-- 9opcache 10--FILE-- 11<?php 12$a = null; // the problem only occurs when set to NULL 13test($a, 'y'); 14 15function test($str, $pad) { 16 $x = $str . str_repeat($pad, 15); // $x now contains "yyyyyyyyyyyyyyy" 17 var_dump($x); 18 19 $gft = new gft(); 20 $gft->info(33); 21 22 // $x has been changed ???? 23 // $x contains what was echoed in the function 'info' 24 var_dump($x); 25} 26class gft { 27 private $strVal = 'abcd '; 28 public function info($info, $prefix = ' Info:') { 29 echo $this->strVal.$prefix.serialize($info).'aaaa'; 30 echo "\n"; 31 } 32} 33?> 34--EXPECT-- 35string(15) "yyyyyyyyyyyyyyy" 36abcd Info:i:33;aaaa 37string(15) "yyyyyyyyyyyyyyy" 38