merge

Written by Balazs Halasy, 02/05/2004 Updated 05/13/2005 by Balazs Halasy

Merges input and passed arrays into one array.

input|merge( array1 [, array2 [, ... ] ] )

Name	Type	Description	Required
array1	array	Array to be merged with the input array.	Yes.
array2	array	Another array to be merge with the input array.	No.

New array containing all arrays merged.

This operator will merge the input array with all arrays passed as parameters. The resulting array will be returned.

{array( 1, 2 )|merge( array( 3, 4 ), array( 5, 6, 7 ) )}

The following array will be returned: ( 1, 2, 3, 4, 5, 6, 7 ).

Contributors

Written by readers of the earlier documentation sites, kept as they were.

Hash merging

Massimiliano Bariola · 10/04/2005 01:37 pm
This function also works for hashes.
```
def $a = hash('a', 'b')
def $b = hash('c', 'd')
def $c = $a|merge($b)
```
will make
```
$c['a'] = 'b'
$c['c'] = 'd'
```
Very useful for growing hashes iteratively. However, bear in bind that hashes cannot have numbers as keys! I lost an hour trying to figure out why my
```
foreach
```
didn't work. :-)
foreach containing a merge

Massimiliano Bariola · 10/04/2005 01:41 pm

.. of course my foreach contained a merge.

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