How to merge Arrays in php - php

Question

How to merge many Arrays in php
$array1="Array ( [0] => mouse ) Array ( [0] => mac ) Array ( [0] => keyboard )";
how i can array like this
Array( [0] =>mouse [1] => mac [2] =>keyboard );

Answer 1

depending on how your arrays are being stored, there are a couple of options.
Here are 2 examples:
<?php
$old_array = array(
array('mouse'),
array('mac'),
array('keyboard')
);
$new_array = array();
foreach($old_array as $a){
$new_array[] = $a[0];
}
echo '<pre>',print_r($new_array),'</pre>';
//// OR ////
$array1 = array('mouse');
$array2 = array('mac');
$array3 = array('keyboard');
$new_array = array_merge($array1,$array2,$array3);
echo '<pre>',print_r($new_array),'</pre>';

Answer 2

You should use array_merge function of PHP.
This:
<?php
$a1=array("red","green");
$a2=array("blue","yellow");
print_r(array_merge($a1,$a2));
?>
will return this:
Array ( [0] => red [1] => green [2] => blue [3] => yellow )
It's as easy as a piece of cake! :)
Try it: http://www.w3schools.com/php/showphp.asp?filename=demo_func_array_merge
Tutorials:
http://www.w3schools.com/php/func_array_merge.asp
http://php.net/array_merge

Answer 3

So you basically have an array of arrays. You can do this in the following way:
$array = array(array(0 => 'mouse'), array(1 => 'mac'), array(2 => 'keyboard'));
$mergedArray = array();
foreach ($array as $part) {
$mergedArray = array_merge($mergedArray, $part);
}
var_dump($mergedArray);
The result is exactly what you would expect:
array(3) {
[0]=>
string(5) "mouse"
[1]=>
string(3) "mac"
[2]=>
string(8) "keyboard"
}
If you also have scalars in the big array, you can modify the loop to the following:
foreach ($array as $part) {
if (!is_array($part)) {
$mergedArray[] = $part;
} else {
$mergedArray = array_merge($mergedArray, $part);
}
}
Note: This will merge all values from all sub arrays, it's not limited to one entry per sub array.

Answer 4

php array_merge() function, Merges the elements of one or more arrays together so that the values of one are appended to the end of the previous one. It returns the resulting array.
Merge N number of array using $array = array_merge( $array1 , $array2, $array3 ..... $arrayN);
$array1 = array ( '0' => 'mouse' );
$array2 = array ( '0' => 'mac' );
$array3 = array ( '0' => 'keyboard' );
$array = array_merge( $array1 , $array2, $array3);
echo "<pre>";
print_r($array);
echo "</pre>";
O/P:
Array
(
[0] => mouse
[1] => mac
[2] => keyboard
)
More info: http://us2.php.net/array_merge