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run code in 200+ php & hhvm versions
Bugs & Features
<?php $a = 'abc'; debug_zval_dump($a{4});
Output for 5.2.10 - 7.1.7
Notice: Uninitialized string offset: 4 in /in/L9RRA on line 4 string(0) "" refcount(1)
Output for 4.3.0 - 5.2.9
Notice: Uninitialized string offset: 4 in /in/L9RRA on line 4 string(0) "" refcount(1)