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run code in 150+ php & hhvm versions
Bugs & Features
<?php $s = '&lt;t&gt;'; var_dump(substr($s, strlen($s) - 4, 4) === '&gt;'); var_dump(substr($s, strlen($s) - 4, 4));
Output for 4.3.0 - 5.6.28, hhvm-3.12.0, 7.0.0 - 7.1.0
bool(true) string(4) "&gt;"
Output for hhvm-3.10.0

Process exited with code 153.