File: bug77058.phpt

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--TEST--
Bug #77058: Type inference in opcache causes side effects
--EXTENSIONS--
opcache
--FILE--
<?php

function myfunc(){
  $Nr = 0;
  while(1){
    $x--;
    $x++;
    if( ++ $Nr >= 2 ) break;
  }
  echo "'$Nr' is expected to be 2", PHP_EOL;
}
myfunc();

?>
--EXPECTF--
Warning: Undefined variable $x in %s on line %d

Warning: Decrement on type null has no effect, this will change in the next major version of PHP in %s on line %d
'2' is expected to be 2