| --TEST-- | |
| Bug #79836 (Segfault in concat_function) | |
| --INI-- | |
| opcache.optimization_level = 0x7FFEBFFF & ~0x400 | |
| --FILE-- | |
| $x = 'non-empty'; | |
| ob_start(function () use (&$c) { | |
| $c = 0; | |
| }, 1); | |
| $c = []; | |
| $x = $c . $x; | |
| $x = $c . $x; | |
| ob_end_clean(); | |
| echo "Done\n"; | |
| --EXPECT-- | |
| Done | |