array_merge
Merge two or more arrays
Description
arrayarray_merge
arrayarray1
arrayarray2
array...
array_merge merges the elements of two or
more arrays together so that the values of one are appended to
the end of the previous one. It returns the resulting array.
If the input arrays have the same string keys, then the later value for
that key will overwrite the previous one. If, however, the arrays
contain numeric keys, the later value will not overwrite the original value, but will be
appended.
<function>array_merge</function> example
"red", 2, 4);
$array2 = array ("a", "b", "color" => "green", "shape" => "trapezoid", 4);
$result = array_merge ($array1, $array2);
print_r($result);
?>
]]>
The $result is:
green
[0] => 2
[1] => 4
[2] => a
[3] => b
[shape] => trapezoid
[4] => 4
)
]]>
Simple <function>array_merge</function> example
"data");
$result = array_merge($array1, $array2);
?>
]]>
Don't forget that numeric keys will be renumbered!
data
)
]]>
If you want to completely preserve the arrays and just want to append
them to each other, use the + operator:
"data");
$result = $array1 + $array2;
?>
]]>
The numeric key will be preserved and thus the association remains.
data
)
]]>
Shared keys will be overwritten on a first-come first-served basis.
See also array_merge_recursive.