| --TEST-- | |
| preg_replace_callback() with callback that modifies subject string | |
| --SKIPIF-- | |
| if (@preg_match('/./u', '') === false) { | |
| die('skip no utf8 support in PCRE library'); | |
| } | |
| --FILE-- | |
| function evil($x) { | |
| global $txt; | |
| $txt[3] = "\xFF"; | |
| var_dump($x); | |
| return $x[0]; | |
| } | |
| $txt = "ola123"; | |
| var_dump(preg_replace_callback('#.#u', 'evil', $txt)); | |
| var_dump($txt); | |
| var_dump(preg_last_error() == PREG_NO_ERROR); | |
| var_dump(preg_replace_callback('#.#u', 'evil', $txt)); | |
| var_dump(preg_last_error() == PREG_BAD_UTF8_ERROR); | |
| echo "Done!\n"; | |
| --EXPECT-- | |
| array(1) { | |
| [0]=> | |
| string(1) "o" | |
| } | |
| array(1) { | |
| [0]=> | |
| string(1) "l" | |
| } | |
| array(1) { | |
| [0]=> | |
| string(1) "a" | |
| } | |
| array(1) { | |
| [0]=> | |
| string(1) "1" | |
| } | |
| array(1) { | |
| [0]=> | |
| string(1) "2" | |
| } | |
| array(1) { | |
| [0]=> | |
| string(1) "3" | |
| } | |
| string(6) "ola123" | |
| string(6) "ola�23" | |
| bool(true) | |
| NULL | |
| bool(true) | |
| Done! | |