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<?php $search = htmlentities("apple;phpinfo()/e\0"); echo "/" . $search . "/"; echo "\n"; if (strpos($search, 'apple') !== false) { echo preg_replace("/" . $search . "/", $search . " <img src='" . $search . ".png'>", "apple"); } elseif (strpos($search, 'orange') !== false) { echo preg_replace("/" . $search . "/", $search . " <img src='" . $search . ".png'>", "orange"); } elseif (strpos($search, 'banana') !== false) { echo preg_replace("/" . $search . "/", $search . " <img src='" . $search . ".png'>", "banana"); } elseif (strpos($search, 'kiwi') !== false) { echo preg_replace("/" . $search . "/", $search . " <img src='" . $search . ".png'>", "kiwi"); } else echo "Please search for apple, orange, banana, or kiwi.";
Output for 8.4.1 - 8.4.2
/apple;phpinfo()/e/ Warning: preg_replace(): Unknown modifier 'e' in /in/25ai0 on line 7
Output for 8.2.0 - 8.2.27, 8.3.0 - 8.3.15
/apple;phpinfo()/e/ Warning: preg_replace(): NUL is not a valid modifier in /in/25ai0 on line 7
Output for 5.4.7 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.31
/apple;phpinfo()/e/ Warning: preg_replace(): Null byte in regex in /in/25ai0 on line 7
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.6
/apple;phpinfo()/e/ apple

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