PHP: Loop through associative Array with Key and Foreach

Here is an example of how to loop through an associative array with keys and values using foreach:

$arr = array('A' => 100, 'B' => 200);

foreach ($arr as $key => $value) {
   echo "Key = $key, Value = $value";
   echo '<br>';
}

First of all, we are creating an associative array containing the keys "A" and "B" and the values 100 and 200. After that, we are using a foreach loop to output the values and keys.

Instead of writing "$arr as $value" we are using "$arr as $key => $value" which makes us getting the key in the variable $key and the value in the variable $value.
2015-07-02 at 23:20