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run code in 150+ php & hhvm versions
Bugs & Features
<?php $array = array( 'value1' => 'key1', 'value2' => 'key2', 'value3' => 'key3', 'value4' => 'key4', ); //typed it the wrong way and need to flip it var_export(array_flip($array));
Output for 4.3.0 - 7.1.0
array ( 'key1' => 'value1', 'key2' => 'value2', 'key3' => 'value3', 'key4' => 'value4', )