If a key from array1 exists in array2, and if the key only exists in array1:

SUBMITTED BY: henry1874w

DATE: June 25, 2017, 2:41 p.m.

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  1. <?php
  2. $a1=array("a"=>"red","b"=>"green");
  3. $a2=array("a"=>"orange","burgundy");
  4. print_r(array_replace($a1,$a2));
  5. ?>
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