使用php在引导选择框内选中复选框
在为每个循环执行操作时,我使用以下代码检查checbox。但复选框不基于数组值进行检查。我使用explode创建$newsource。实际上我有 sourceIds=100252&sourceIds=100111使用php在引导选择框内选中复选框,php,Php,在为每个循环执行操作时,我使用以下代码检查checbox。但复选框不基于数组值进行检查。我使用explode创建$newsource。实际上我有 sourceIds=100252&sourceIds=100111 $newsource = Array ( [0] => sourceIds=100252 [1] => sourceIds=100111 ); <select id="source" class="form-control source"
$newsource = Array ( [0] => sourceIds=100252 [1] => sourceIds=100111 );
<select id="source" class="form-control source" multiple="multiple">
<?php $loop=0; foreach($sources->sources as $row) {
echo $loop;
if($newsource[$loop]==$row->id) {
echo '<option checked="'.checked.'" value="'.$row->id.'">'.$row->name.'</option>';
}
else {
echo '<option value="'.$row->id.'">'.$row->name.'</option>';
echo "a".$newSource[$loop];
}
$loop = $loop +1;} ?></select>
$newsource=Array([0]=>sourceIds=100252[1]=>sourceIds=100111);
试试:
if($newSource[$loop]==$row->id){
回显“.$row->name.”;
}
否则{
回显“.$row->name.”;
echo“a”。$newSource[$loop];
}
您使用的是checked而不是selected,顺便说一句,它是常量而不是字符串的一部分
...
echo '<option selected="selected" value="'.$row->id.'">'.$row->name.'</option>';
...
。。。
回显“.$row->name.”;
...
但是,您的代码还有其他问题:数组定义看起来不正确,您是以普通数组的形式访问它,但该定义给我的印象是它是一个关联数组。
您还将$newsource
称为末尾附近的$newsource
。$sourceSession=“sourceIds=100252&sourceIds=100111”;
$sourceSession = "sourceIds=100252&sourceIds=100111";
$newSource = explode('=',$sourceSession);
preg_match_all('!\d+!', $sourceSession, $matches);
<select id="source" class="form-control source" multiple="multiple">
<?php $loop=0; foreach($sources->sources as $row) {
if(isset($matches[0][$loop])) {
$a = $loop;
$mtch = $matches[0][$a];
}
if($row->id==$mtch) {
echo '<option selected="'.selected.'" value="'.$row->id.'">'.$row->name.'</option>';
$loop = $loop + 1;
}
else {
echo '<option value="'.$row->id.'">'.$row->name.'</option>';
}
} ?></select>
$newSource=explode('=',$sourceSession);
preg_match_all(“!\d+!”,$sourceSession,$matches);
您是否注意到$newsource=Array([0]=>sourceIds=100252[1]=>sourceIds=100111);。我认为这就是问题所在
$sourceSession = "sourceIds=100252&sourceIds=100111";
$newSource = explode('=',$sourceSession);
preg_match_all('!\d+!', $sourceSession, $matches);
<select id="source" class="form-control source" multiple="multiple">
<?php $loop=0; foreach($sources->sources as $row) {
if(isset($matches[0][$loop])) {
$a = $loop;
$mtch = $matches[0][$a];
}
if($row->id==$mtch) {
echo '<option selected="'.selected.'" value="'.$row->id.'">'.$row->name.'</option>';
$loop = $loop + 1;
}
else {
echo '<option value="'.$row->id.'">'.$row->name.'</option>';
}
} ?></select>