- implode: documentation ( source)
<?php
$idnameCli = array (
array
(
1,
'Name1'
)
,
array
(
3,
'Name2'
)
,
array
(
4,
'Name3'
)
);
?>
<select name="client" onchange="this.form.submit()">
<option value="" disabled selected>--client--</option>
<?php
for ($i = 0; $i < count($idnameCli); $i++) {
echo "<option value='".$idnameCli[$i][1]."'>". implode('',$idnameCli[$i]) ."</option>".PHP_EOL;
}
?>
</select>