How do you iterate through an array of objects in php?
I'm very new to PHP and I need your help! I need to write backend for my app that receives json post and write data to json file. And I'm stuck with looping through array. Show
shows array:
I'm trying to loop through the objects and getting error
Here is how I'm trying to do it:
asked Jul 31, 2015 at 19:08
1
You can echo specific properties of the object:
Of course you could also use Objects can only be casted to string like you do if they implement the
answered Jul 31, 2015 at 19:12
GolezTrolGolezTrol 113k17 gold badges181 silver badges202 bronze badges I had the same problem recently. I used a
answered Jul 11, 2021 at 8:27
(PHP 4, PHP 5, PHP 7, PHP 8) The foreach (iterable_expression as $value) statement foreach (iterable_expression as $key => $value) statement The first form traverses the iterable given by The second form will additionally assign the current element's key to the Note that It is possible to customize object iteration. In order to be able to directly modify array elements within the loop precede
Warning Reference of a
foreach ($arr as $key => $value) { It is possible to iterate a constant array's value by reference:
Some more examples to demonstrate usage:
$a as $v) { Unpacking nested arrays with list()(PHP 5 >= 5.5.0, PHP 7, PHP 8) It is possible to iterate over an array of arrays and unpack the nested array into loop variables by providing a list() as the value. For example:
$array as list($a, $b)) { The above example will output: You can provide fewer elements in the list() than there are in the nested array, in which case the leftover array values will be ignored:
$array as list($a)) { The above example will output: A notice will be generated if there aren't enough array elements to fill the list():
$array as list($a, $b, $c)) { The above example will output: Notice: Undefined offset: 2 in example.php on line 7 A: 1; B: 2; C: Notice: Undefined offset: 2 in example.php on line 7 A: 3; B: 4; C: Sanusi Hassan ¶ 6 days ago
$array as $v) { Okafor Chiagozie ¶ 2 days ago
How do you loop through a multidimensional array in PHP?Looping through multidimensional arrays
Just as with regular, single-dimensional arrays, you can use foreach to loop through multidimensional arrays. To do this, you need to create nested foreach loops — that is, one loop inside another: The outer loop reads each element in the top-level array.
What is array iterator in PHP?The ArrayIterator class ¶
This iterator allows to unset and modify values and keys while iterating over Arrays and Objects.
What is foreach in PHP?PHP foreach loop is utilized for looping through the values of an array. It loops over the array, and each value for the fresh array element is assigned to value, and the array pointer is progressed by one to go the following element in the array.
How can we store value in array using for loop in PHP?Declare the $items array outside the loop and use $items[] to add items to the array: $items = array(); foreach($group_membership as $username) { $items[] = $username; } print_r($items); Hope it helps!!
|