How to make <option selected="selected">
set by MySQL and PHP?
My code:
echo '<select>';
$tempholder = array();
$rs = mysql_query("SELECT * FROM id ORDER BY year");
$nr = mysql_num_rows($rs);
for ($i=0; $i<$nr; $i++){
$r = mysql_fetch_array($rs);
//if($year==$r["year"]){ $selected=' selected="selected"'; }//doesn't work so
if (!in_array($r['year'], $tempholder)){
$tempholder[$i] = $r['year'];
echo "<option>".$r["year"]."</option>";//<option$selected>...
}
}
unset($tempholder);
echo '</select>';
Try this one:
echo '<select>';
$tempholder = array();
$rs = mysql_query("SELECT * FROM id ORDER BY year");
$nr = mysql_num_rows($rs);
for ($i=0; $i<$nr; $i++){
$r = mysql_fetch_array($rs);
if (!in_array($r['year'], $tempholder)){
$tempholder[$i] = $r['year'];
echo "<option".(($year==$r["year"])? ' selected="selected"' : '').">".$r["year"]."</option>";
}
}
unset($tempholder);
echo '</select>';
It doesn't saves the state in a variable which you have to overwrite.
And I think the real error was the single equal sign in $year=$r["year"] and not wihtin the rest of the code.
In addition to fixing the =
/==
gotcha, you can save yourself the array lookup and make the code simpler by asking the database to return each year only once in the query:
<select>
<?php $result= mysql_query('SELECT DISTINCT year FROM id ORDER BY year'); ?>
<?php while($row= mysql_fetch_assoc($result)) { ?>
<option <?php if ($row['year']==$year) { ?>selected="selected"<?php } ?>>
<?php echo htmlspecialchars($row['year']); ?>
</option>
<?php } ?>
</select>
(You may not need htmlspecialchars()
assuming that's a numeric year, but it's good practice always to HTML-escape any plain text you include in an HTML template. You can define a function with a shorter name to do the echo htmlspecialchars
to cut down on typing.
)
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