how to iterate through associative array in php code example

Example 1: php foreach associative array

$arr = array(
  'key1' => 'val1',
  'key2' => 'val2',
  'key3' => 'val3'
);

foreach ($arr as $key => $val) {
  echo "$key => $val" . PHP_EOL;
}

Example 2: how to iterate through php array

$ar = ['Rudi', 'Morie', 'Halo', 'Miki'];

for ($i=0, $len=count($ar); $i<$len; $i++) {
    echo "$ar[$i] \n";
}
/*
Rudi 
Morie 
Halo 
Miki 
*/