What is foreach of array in php?
PHP foreach LoopThe Show The PHP foreach LoopThe Syntax foreach ($array as$value) { For every loop iteration, the value of the current array element is assigned to $value and the array pointer is moved by one, until it reaches the last array element. ExamplesThe following example will output the values of the given array ($colors): Example$colors = array("red", "green", "blue", "yellow"); foreach ($colors as $value) { Try it Yourself » The following example will output both the keys and the values of the given array ($age): Example$age = array("Peter"=>"35", "Ben"=>"37", "Joe"=>"43"); foreach($age as $x => $val) { Try it Yourself » You will learn more about arrays in the PHP Arrays chapter. (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, $c)) { The above example will output: Notice: Undefined offset: 2 in example.php on line 7 A: 1; B: 2; C: Notice: Undefined offset: 2 in example.php on line 7 A: 3; B: 4; C: There are no user contributed notes for this page. What is the use of foreach in PHP?What is foreach in PHP? The foreach() method is used to loop through the elements in an indexed or associative array. It can also be used to iterate over objects. This allows you to run blocks of code for each element.
What is array foreach?JavaScript Array forEach()
The forEach() method calls a function for each element in an array. The forEach() method is not executed for empty elements.
What is foreach loop in PHP with example?The PHP foreach Loop
The foreach loop works only on arrays, and is used to loop through each key/value pair in an array.
How do you iterate over an array in PHP?6 ways to loop through an array in php. while(expression){ // Code to be executed }. do { // Code to be executed } while(expression);. for (expr1; expr2; expr3) { //Code to be executed }. array_walk(array|object &$array, callable $callback, mixed $arg = null): bool.. |