PHP Array foreach - Tutorial Kart
PHP Array foreach
PHP Array foreach
PHP Array foreach is a construct in PHP that allows to iterate over arrays easily.
In this tutorial, we will learn the syntax of foreach loop construct and go through following scenarios
1. foreach loop to iterate over PHP array of numbers. 2. foreach loop to iterate over key-value pairs of PHP array. 3. foreach loop to iterate over only values of PHP array with key-value pairs. 4. nested foreach loop to iterate over multidimensional PHP array.
Syntax ? foreach
The syntax of foreach() with array is
foreach (array_expression as $value) { statement(s)
}
Using this syntax, you can iterate over arrays containing just the values as elements, or iterate only over values of an array with key-value pairs.
If you would like to access both key and value of key-value pairs in array with foreach, use the following syntax
foreach (array_expression as $key => $value) { statement(s)
}
Now, you can access both key and value using variable $key and $value variables respectively.
Example ? foreach on Array of Integers
In the following program, we take an array of integers and iterate over the elements using foreach loop.
PHP Program
Program Output
Example ? Array foreach ? Iterate over Array key-value pairs
In the following program, we take an array of integers and iterate over the elements using foreach loop.
PHP Program
Program Output
PHP Array foreach ? Iterate over elements of Array
Example ? Array foreach ? Iterate over values of Array with Key-Value pairs
In the following program, we take an array of key-value pairs and iterate over only values using foreach loop.
PHP Program
Program Output
Example ? Nested foreach ? Iterate over values of Multidimensional Array
In the following program, we take a two dimensional array and iterate over the elements using foreach loop.
PHP Program
Program Output
Conclusion
In this PHP Tutorial, we learned the syntax of foreach in PHP, and how to use foreach to iterate over the elements of an array.
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