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run code in 150+ php & hhvm versions
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<?php $params = array( "biz_profile_id" => $biz_profile_id, "relationship_id" => $relationship_id ); $merge_array = array( 'start_time' => 123 ); var_dump(array_merge((array)$beginning, (array)$end));
Output for 5.0.4 - 5.0.5, 7.0.0 - 7.1.0
Notice: Undefined variable: biz_profile_id in /in/chQOk on line 4 Notice: Undefined variable: relationship_id in /in/chQOk on line 5 Notice: Undefined variable: beginning in /in/chQOk on line 12 Notice: Undefined variable: end in /in/chQOk on line 12 array(0) { }
Output for hhvm-3.12.0
Notice: Undefined variable: biz_profile_id in /in/chQOk on line 6 Notice: Undefined variable: relationship_id in /in/chQOk on line 6 Notice: Undefined variable: beginning in /in/chQOk on line 12 Notice: Undefined variable: end in /in/chQOk on line 12 array(0) { }
Output for hhvm-3.10.0

Process exited with code 153.
Output for 5.1.0 - 5.6.28
Notice: Undefined variable: biz_profile_id in /in/chQOk on line 4 Notice: Undefined variable: relationship_id in /in/chQOk on line 6 Notice: Undefined variable: beginning in /in/chQOk on line 12 Notice: Undefined variable: end in /in/chQOk on line 12 array(0) { }
Output for 4.3.0 - 5.0.3
Notice: Undefined variable: biz_profile_id in /in/chQOk on line 4 Notice: Undefined variable: relationship_id in /in/chQOk on line 5 Notice: Undefined variable: beginning in /in/chQOk on line 12 Notice: Undefined variable: end in /in/chQOk on line 12 array(0) { }