10c02-1.php

介绍PHP5的给类型函数应用

<?php
// If we have a 'cities' from the POST, then loop over and display:
if (isset($_POST['cities'])) {
    echo "<p>You claim to have lived in the following cities:";

    // Loop over each city and output
    foreach ($_POST['cities'] as $num => $val) { 
        echo '<br />', ($num + 1), ". {$val}\n";
    }
    echo "</p>\n";
}
?>
<form action="<?= $_SERVER['PHP_SELF'] ?>" method="post" name="f1">
<p>In order, what are the most recent cities you have lived in?</p>
<ol>
<?php
// Create a dozen form entries to hold cities:
echo str_repeat('<li><input name="cities[]" type="text" /></li>', 12);
?>
</ol>
<p><input type="submit" /></p>
</form>