php loop array key value code example

Example 1: php for array key value

<?php
$array = array(1=>"apple",2=>"Orange",3=>"Banana");

foreach($array as $key => $value){
	echo "The value for " . $key . " is " . $value;
}
/*The value for 1 is apple
The value for 2 is Orange
The value for 3 is Banana

$array = [1 => "apple", 2 => "Orange", 3 => "Banana"    
    Is also valid
];*/  
?>

Example 2: foreach ph

<?php
$arr = array(1, 2, 3, 4);
foreach ($arr as &$value) {
    $value = $value * 2;
}
// $arr is now array(2, 4, 6, 8)
unset($value); // break the reference with the last element
?>

Example 3: php loop object keys

echo $obj->name;
echo $obj->age;

Example 4: php loop through array

foreach (array_expression as $value)
    statement
foreach (array_expression as $key => $value)
    statement