04c05-2.php

介绍PHP5的给类型函数应用

<?php
// Create a couple variables
$favorite_color = 'blue';
$favorite_weapon = 'crossbow';
$favorite_drink = 'bourbon';

// Make an array of these variable names
$favorite_things = array('color', 'weapon', 'drink');

// Now access all these variables programmatically via variable variables
// This will output:
// color = blue
// weapon = crossbow
// drink = bourbon
foreach ($favorite_things as $thing) {
    echo '<p>', $thing, ' = ', ${"favorite_{$thing}"}, '</p>';
}
?>