Chunks
Split an array into separate parts.
/**
* Create an array containing a range of elements ...
* then split into chunks
*/
$data = range(1,100);
$chunks = array_chunk($data, 2);
foreach($chunks as $v) {
echo " $v[0], $v[1] \n";
}
# 1, 2 / 3, 4 ... 99, 100
Merge
Merge one or more arrays.
/**
* Merge one or more arrays
*
* If arrays have the same string keys ...
* the later value for that key will be overwriten
*
* If don't want to ovewrite use the + array union operator
*/
$A = array_merge((array) 'foo', [1, 2]);
$B = array_merge(['color'=> 'red', 1], ['a', 'color'=>'green']);
$C = ['a' => 'A', 1] + ['a' => 'B', 2, 3];
echo 'A: ' . print_r($A, true); // foo, 1, 2
echo 'B: ' . print_r($B, true); // green, 1, a
echo 'C: ' . print_r($C, true); // A, 1, 3
Diff
All the values of $A that do not appear in $B
/**
* Diff returns ...
* all values in an array not appearing in another
*
* Intersect keeps ...
* all the values of each element
*/
$A = [1, 2, 3];
$B = [1, 3, 4];
print_r( array_diff($A, $B) ); // 2
print_r( array_intersect($A, $B) ); // 1, 3
Last update: 625 days ago
