I have an array like this in php
Array
(
[0] => 1
[1] => 3
[2] => 5
[3] => 10
[4] => 14
[5] => 15
)
Now I want it to look like
Array
(
[0] => Array
(
[0] => 1
[1] => 3
)
[1] => => Array
(
[0] => 5
[1] => 10
)
[2] => => Array
(
[0] => 14
[1] => 15
)
)
Please suggest how to get the desired output using for loop.
You could try something like this
$length = count($array);
$newArray = array();
for ($i = 0; $i < $length; $i +=2){
$newArray[] = array($array[$i], $array[$i + 1])
}
count($array) to $length doesn't do much here. It's a different case when you have something like $i < $list->length because then every time the interpreter will have to find $list and look at it's property $length. Something to keep in mind ;)
for($i = 0, $count = count($array1); $i < $count; $i = $i + 2) {
$array2[] = array($array1[$i], $array1[$i+1]);
}
print_r($array2);
Something that looks like :
for ($i = 0 ; $i < count($arr) ; $i += 2) {
...
}
Note that I increment $i twice on each iteration as I'm working with pairs of items : int the loop, I'll use $arr[$i] and $arr[$i+1] on each iteration. Note that this will not work correctly is the n# of items is not even !
The rest should be rather straightforward.
forloop? Why not simply use array_chunk()? php.net/manual/en/function.array-chunk.php