Hi, The array_merge() function merges one ore more arrays into one array. Description array_merge(array1,array2,array3...) array1 Required. Specifies an array array2 Optional. Specifies an array array3 Optional. Specifies an array Tip: You can assign one array to the function, or as many as you like. Note: If two or more array elements have the same key, the last one overrides the others. Note: If you assign only one array to the array_merge() function, and the keys are integers, the function returns a new array with integer keys starting at 0 and increases by 1 for each value. (See example 2) <?php $a1=array("a"=>"Horse","b"=>"Dog"); $a2=array("c"=>"Cow","b"=>"Cat"); print_r(array_merge($a1,$a2)); ?> Array ( [a] => Horse => Cat [c] => Cow )