Question

我有6个美国州（夏威夷，俄亥俄州，路易斯安那州，弗吉尼亚州，田纳西州和德克萨斯州）。我有另外一组美国3个国家，这些国家是从美国上述6个州（俄亥俄州，弗吉尼亚州，德克萨斯州）中选出的。

如何让PHP生成总共6个状态的复选框列表，但选中状态是否已选中？我的代码列在下面，似乎无法让它运行：

<!DOCTYPE> 
<html>
<head>
    <style>
    #locationsBox { 
        border: 2px solid #ccc; 
        width: 250px; 
        height: 100px; 
        overflow-y: scroll; 
    }
    </style>
</head>
<body>
    <div id="locationsBox">
    <form name="location_checkboxes">
    <?
    $locations = array("Hawaii","Ohio","Louisiana","Virginia","Tennessee","Texas");
    $selected_locations = array("Ohio","Virginia","Texas");

    for($i = 0; $i < sizeOf($locations); $i++) {
        if (false != $key = array_search($selected_locations[$i],$locations) {
            echo '<input type="checkbox" checked="yes" value="'.$locations[$key].'" />' . $locations[$key] . '<br />';
        } else {
            echo '<input type="checkbox" value="'.$locations[$i].'" />' . $locations[$i] . '<br />';
        }
    }
    ?>
    </form>
    </div>
</body>
</html>

感谢您的任何建议！

Answer 1

<?php
$locations = array("Hawaii","Ohio","Louisiana","Virginia","Tennessee","Texas");
$selected_locations = array("Ohio","Virginia","Texas");
foreach($locations as $l)
{
    if(in_array($l,$selected_locations))
    {
       echo '<input type="checkbox" name="location[]"     checked="checked" value="'.$l.'" />' . $l . '<br />';
        echo "<br />";
    }
     else 
    {
        echo '<input type="checkbox" name="location[]" value="'.$l.'" />' . $l . '<br />';
    }
}
?>

根据数组生成选中标记的复选框

1 个答案: