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PHP array_merge() Function
PHP array_merge() Function
PHP array_merge() Function is used to merge(combines) one or more arrays into a single array.
Note : If the input arrays have the same string keys then the previous one will be overwritten by the later value for that key.
Note :If the arrays contain numerical keys, however, the later value will not replace the original value, but will be added.
Syntax:
array_merge(array1, array2, array3, ...)
Parameter Values
| Parameter | Description |
|---|---|
| array1 | This is required parameter. This parameter Specifies an array. |
| array2 | This is optional parameter. This parameter Specifies an array. |
| array3,... | This is optional parameter. This parameter Specifies an array. |
Here, is an example of array_merge() Function in PHP
<html>
<body>
<?php
$a1=array("yellow","white");
$a2=array("green","voilet");
print_r(array_merge($a1,$a2));
?>
</body>
</html>
Output:
Array ( [0] => yellow [1] => white [2] => green [3] => voilet )
Example 2:
<html>
<body>
<?php
$a1=array("black","pink");
$a2=array("blue","red");
print_r(array_merge($a2,$a1));
?>
</body>
</html>
Output:
Array ( [0] => blue [1] => red [2] => black [3] => pink )
Example 3(Merge 2 Associative array)
<html>
<body>
<?php
$arr1=array("a"=>"red","b"=>"green");
$arr2=array("c"=>"blue","b"=>"yellow");
print_r(array_merge($arr1,$arr2));
?>
</body>
</html>
Output:
Array ( [a] => red [b] => yellow [c] => blue )
Array ( [a] => red [b] => yellow [c] => blue )
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