hi guys,
I am with an array like $x = array(1,2,3,4,5); i would like to add element 6 in between 3 and 4 and make it like array(1,2,3,6,4,5);
how do i make it in that place or first place?
views:
60answers:
5
+2
A:
array_insert($array,$pos,$val);
function array_insert($array,$pos,$val)
{
$array2 = array_splice($array,$pos);
$array[] = $val;
$array = array_merge($array,$array2);
return $array;
}
sushil bharwani
2010-09-26 17:39:09
`array_insert()` is not pre-defined in PHP. You need to create it yourself.
BoltClock
2010-09-26 17:39:50
sorry i just realized i had edited the answer.
sushil bharwani
2010-09-26 17:42:15
This answer is the function definition of `array_insert()`
lacqui
2010-09-26 17:42:51
+1
A:
Try this:
$x = array(1,2,3,4,5);
$x = array_merge(array_slice($x, 0, 3), array(6), array_slice($x, 3));
print_r($x);
Output;
Array
(
[0] => 1
[1] => 2
[2] => 3
[3] => 6
[4] => 4
[5] => 5
)
codaddict
2010-09-26 17:40:51
A:
It can by done like this:
function array_insert_value(array $array = array(), $value = null, $position = null)
{
if(empty($position))
return array_merge($array, array($value));
else
return array_merge(
array_slice($array, 0, $position),
array($value),
array_slice($array, $position)
);
}
Nazariy
2010-09-26 17:45:52
`$length` is 0 by default; and this doesn't do what the OP asked for. This will replace the element in `$pos` with `$val`, not insert at `$pos`.
NullUserException
2010-09-26 17:48:40
Take a look at Example #2. A `$length` of 0, though undocumented, causes insertion. I noticed `= 0` in the parameter list too, it must be an artifact.
aib
2010-09-26 17:53:24
This does exactly what KoolKabin asked for, and doesn't replace any elements. But it's unnecessary to place the inserted value into an array. Also, this question seems to me an exact duplicate of this 9-hour-old question: http://stackoverflow.com/questions/3797239/php-array-insert-new-item-in-any-position/3797526#3797526
GZipp
2010-09-26 19:15:34
@aib - Absolutely true, and since doing it that way makes the operation safer, I retract that part of my comment.
GZipp
2010-09-26 23:18:51
A:
I cam up with this function. I have also included the code I used for testing I hope this helps.
function chngNdx($array,$ndex,$val){
$aCount = count($array);
for($x=($aCount)-1;$x>=$ndex;$x--){
$array[($x+1)] = $array[$x];
}
$array[$ndex] = $val;
return $array;
}
$aArray = array();
$aArray[0] = 1;
$aArray[1] = 2;
$aArray[2] = 3;
$aArray[3] = 4;
$aArray[4] = 5;
$ndex = 3; // # on the index to change 0-#
$val = 6;
print("before: ".print_r($aArray)."<br />");
$aArray = chngNdx($aArray,$ndex,$val);
print("after: ".print_r($aArray)."<br />");
Brook Julias
2010-09-26 18:06:46