Hiii Everyone,
我在drop_1_1 is 'sds';
选项中的其他值是
drop1[0]=as
drop1[1]=sds
drop1[2]=aa
drop1[3]=sa
如果drop_1_1值与上述任何值匹配,drop1 [0],drop1 [2]等,则应选择
以下是我的代码
$string = '<select name="drop_select1" class="user">
<option value=\''.$drop1[0].'\' if($drop_1_1==$drop1[0]) echo "selected=selected"; >'.$drop1[0].'</option>
<option value=\''.$drop1[1].'\' if($drop_1_1==$drop1[1]) echo "selected=selected";>'.$drop1[1].'</option>
<option value=\''.$drop1[2].'\' if($drop_1_1==$drop1[2]) echo "selected=selected";>'.$drop1[2].'</option>
<option value=\''.$drop1[3].'\' if($drop_1_1==$drop1[3]) echo "selected=selected";>'.$drop1[3].'</option></select>';
在上面的代码中,没有选择值。
任何人都可以帮我解决我做错的事吗?
由于
答案 0 :(得分:1)
你可以这样试试,
$selected = 'selected';
$string = '<select name="drop_select1" class="user">
<option value=\''.$drop1[0].'\' '.($drop_1_1==$drop1[0] ? $selected : "" ).'>'.$drop1[0].'</option>
<option value=\''.$drop1[1].'\' '.($drop_1_1==$drop1[1] ? $selected : "" ).'>'.$drop1[1].'</option>
<option value=\''.$drop1[2].'\' '.($drop_1_1==$drop1[2] ? $selected : "" ).'>'.$drop1[2].'</option>
<option value=\''.$drop1[3].'\' '.($drop_1_1==$drop1[3] ? $selected : "" ).'>'.$drop1[3].'</option></select>';
你有语法错误,试一试,这样可行。
答案 1 :(得分:1)
实现此类目标的最佳方式是:
echo '<select>';
foreach($drop1 as $key => $value)
{
$selected = '';
if( $key == 'some value' )
{
$selected = 'selected="selected"';
}
echo '<option value="'.$key.'" '.$selected.'>'.$value.'</option>'
}
echo '</select>';
答案 2 :(得分:1)
你可以使用任何循环
$drops = ["as","sds","aa","sa"];
$drop_selected = "sds";
$string = "<select name='drop_select1' class='user'>";
foreach($drops as $drop){
$selected = ($drop == $drop_selected) ? ' selected ' : '';
$string .= "<option $selected value='$drop'>$drop</option>";
}
$string .= "</select>";
echo $string;