[英]optgroup generated by php
我正在尝试从数组中使用PHP生成optgroup和选项,并且生成了它,但是我的optgroup是错误的。 它仅显示第一个单词。 在页面源中是正确的。
$my_array = array(
first optgroup => array(
key1 =>value1,
key2 => value2,
key3 => value3,
),
second optgroup => array(
key1 =>value1,
key2 => value2,
key3 => value3,
),
);
foreach ($my_array as $optgroup => $other_array) {
echo "<optgroup label=". $optgroup . ">";
foreach ($other_array as $key => $value) {
echo "<option value=" . $key . ">" . $value . "</option>";
}
echo "</optgroup>";
in the source code is fine:
<optgroup label=first optgroup>
<option value=key1>value1</option>
<option value=key2>value2</option>
.......
但是在我的选择框中,我只能看到“ first”,而不是“ first optgroup”
有任何想法吗?? 谢谢!!
您需要嵌入一些引号:
echo "<optgroup label=\"{$optgroup}\">";
^^-----------^^----
注意嵌入引号上的反斜杠转义符。 这会产生
<optgroup label="foo bar">
而不是
<optgroup label=foo bar>
^^^--- value for "label" attribute
^^^---unknown random attribute
你现在在做
尝试这个,
$my_array = array(
'first optgroup' => array(
'key1' =>'value1',
'key2' => 'value2',
'key3' => 'value3',
),
'second optgroup '=> array(
'key1' =>'value1',
'key2' => 'value2',
'key3' => 'value3',
),
);
echo "<select>";
foreach ($my_array as $optgroup => $other_array) {
echo "<optgroup label=". $optgroup . ">";
foreach ($other_array as $key => $value)
echo "<option value=" . $key . ">" . $value . "</option>";
}
echo "</optgroup>";
});
echo "</select>";
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