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run code in 150+ php & hhvm versions
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<?php #$srch = substr("echo phpinfo();echo 'apple'\\e", 0, -1); $srch = "echo phpinfo();echo 'apple1'\e[^\\\]"; echo $srch;echo "\n"; $search = htmlentities($srch); echo $search; echo "\n"; if (strpos($search, 'apple') !== false){ echo "in the if!\n"; echo preg_replace("/".$search."/", $search." <img src='".$search.".png'>", "apple"); }; ?>
Output for 5.4.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
echo phpinfo();echo 'apple1'[^\\] echo phpinfo();echo 'apple1'[^\\] in the if! apple
Output for 4.3.0 - 5.3.29
echo phpinfo();echo 'apple1'\e[^\\] echo phpinfo();echo 'apple1'\e[^\\] in the if! apple