PHP Tutorial Part 17 : PHP foreach loop

PHP foreach loop The foreach loop is used to traverse the array elements. It works only on array and object. It will issue an error if you try to use it with the variables of the different datatype. The foreach loop works based on an element rather than an index. It provides the easiest way to iterate the elements of an array. In the foreach loop, we don't need to increment the value. Syntax foreach ($array as $value) {       //code to be executed   }   foreach ($array as $value) { //code to be executed } There is one more syntax of the foreach loop. Syntax foreach ($array as $key => $element) {        //code to be executed   }   foreach ($array as $key => $element) { //code to be executed } Example 1: PHP program to print array elements using a foreach loop. <?php       //declare array       $season = array ("Summer", "Winter", "Autumn", "Rainy");              //access array elements using foreach loop       foreach ($season as $element) {           echo "$element";           echo "</br>";       }   ?>   <?php //declare array $season = array ("Summer", "Winter", "Autumn", "Rainy"); //access array elements using foreach loop foreach ($season as $element) { echo "$element"; echo "</br>"; } ?> Output: Summer Winter Autumn Rainy Example 2: PHP program to print associative array elements using a foreach loop. <?php       //declare array       $employee = array (           "Name" => "onlinequizstock",           "Email" => "onlinequizstock@gmail.com",           "Age" => 22,           "Gender" => "Male"       );              //display associative array element through foreach loop       foreach ($employee as $key => $element) {           echo $key . " : " . $element;           echo "</br>";        }   ?>   <?php //declare array $employee = array ( "Name" => "Alex", "Email" => "alex_jtp@gmail.com", "Age" => 21, "Gender" => "Male" ); //display associative array element through foreach loop foreach ($employee as $key => $element) { echo $key . " : " . $element; echo "</br>"; } ?> Output: Name : onlinequizstock Email : onlinequizstock@gmail.com Age : 22 Gender : Male Example 3: Multi-dimensional array <?php       //declare multi-dimensional array       $a = array();       $a[0][0] = "Alex";       $a[0][1] = "Bob";       $a[1][0] = "Camila";       $a[1][1] = "Denial";              //display multi-dimensional array elements through foreach loop       foreach ($a as $e1) {           foreach ($e1 as $e2) {               echo "$e2\n";           }       }   ?>   <?php //declare multi-dimensional array $a = array(); $a[0][0] = "Alex"; $a[0][1] = "Bob"; $a[1][0] = "Camila"; $a[1][1] = "Denial"; //display multi-dimensional array elements through foreach loop foreach ($a as $e1) { foreach ($e1 as $e2) { echo "$e2\n"; } } ?> Output: Alex Bob Camila Denial Example 4: Dynamic array <?php       //dynamic array       foreach (array ('o', 'n', 'l', 'i', 'n', 'e', 'q', 'u', 'i', 'z') as $elements) {           echo "$elements\n";       }   ?>   <?php //dynamic array foreach (array ('j', 'a', 'v', 'a', 't', 'p', 'o', 'i', 'n', 't') as $elements) { echo "$elements\n"; } ?> Output: onlinequiz