10c05-1.php

来自「介绍PHP5的给类型函数应用」· PHP 代码 · 共 39 行

<?php
// If this file was a submission, then output the values
if (count($_POST)) {
    echo "<p>You submitted the following music ID numbers:<br />
1st - {$_POST['1st']}, 2nd - {$_POST['2nd']}, 3rd - {$_POST['3rd']}</p>
";
}

// Array of options in a format that might have come from a database query:
$types = array(
    array('id' => 10, 'desc' => 'Rock'), 
    array('id' => 11, 'desc' => 'Alternative'),
    array('id' => 12, 'desc' => 'Metal'), 
    array('id' => 20, 'desc' => 'Classical'),
    array('id' => 33, 'desc' => 'Jazz'), 
    array('id' => 34, 'desc' => 'Blues'),
    array('id' => 42, 'desc' => 'Ska'), 
    array('id' => 44, 'desc' => 'Folk'),
    array('id' => 49, 'desc' => 'Blue Grass')
    );

// Now, generate the options portion of a select string, based upon this:
// Start with a blank option:
$options = "<option value=\"\">Select one ...</option>\n";

// Now loop over all possibilities, adding them in:
foreach ($types as $m) {
    $options .= "<option value=\"{$m['id']}\">{$m['desc']}</option>\n";
}

// And now we can output our page, using this multiple times:
?>
<form action="<?= $_SERVER['PHP_SELF'] ?>" method="post" name="f1">
<p>Please choose your favorite types of music:</p>
<p>1st: <select name="1st"><?= $options ?></select></p>
<p>2nd: <select name="2nd"><?= $options ?></select></p>
<p>3rd: <select name="3rd"><?= $options ?></select></p>
<p><input type="submit" /></p>
</form>