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run code in 200+ php & hhvm versions
Bugs & Features
<?php $a = array( array( 'targeted' => array( 'plm1' => "1", 'plm2' => "2", 'plm3' => "3", ), 'plm1' => "4", 'plm3' => "5", 'plm4' => "6", ), array( 'plm1' => "2", 'plm3' => "3", 'plm4' => "4", ), ); print_r(array_column(array_column($a, "targeted"), "plm1"));
based on FLBjW
Output for 5.6.0 - 5.6.30, hhvm-3.15.4, 7.0.0 - 7.3.0rc3
Array ( [0] => 1 )