PHP: Looping Thru Array
Loop Thru Values
To go thru a list, use “foreach”. Here's a example of looping thru a list and accessing its values:
<?php $aa = array("nil","bi","tri"); foreach ($aa as $x) { echo "$x "; } // prints nil bi tri
Loop Thru Keys and Values
Here's a example of looping thru a list and accessing both keys and values:
<?php $aa = array("nil","bi","tri"); foreach ($aa as $k => $v) { echo "$k,$v; "; } // prints 0,nil; 1,bi; 2,tri;
Map Thru Values
Map a function to a array.
<?php function ff($n) {return($n+1);} $a = array(3,9,4); $b = array_map(ff, $a); // $b is (4,10,5) print_r($b);