Mantener los valores seleccionados después del envío del formulario
<form method="get" action="">
<select name="name">
<option value="a">a</option>
<option value="b">b</option>
</select>
<select name="location">
<option value="x">x</option>
<option value="y">y</option>
</select>
<input type="submit" value="Submit" class="submit" />
</form>
Al enviar el formulario, ¿cómo me aseguro de que los valores seleccionados permanezcan seleccionados en los desplegables? Este formulario está dentro de wordpress (PHP).
10 answers
Para evitar muchas estructuras if-else, deje que javascript haga el truco automáticamente:
<select name="name" id="name">
<option value="a">a</option>
<option value="b">b</option>
</select>
<script type="text/javascript">
document.getElementById('name').value = "<?php echo $_GET['name'];?>";
</script>
<select name="location" id="location">
<option value="x">x</option>
<option value="y">y</option>
</select>
<script type="text/javascript">
document.getElementById('location').value = "<?php echo $_GET['location'];?>";
</script>
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2010-02-13 06:19:06
<select name="name">
<option <?php if ($_GET['name'] == 'a') { ?>selected="true" <?php }; ?>value="a">a</option>
<option <?php if ($_GET['name'] == 'b') { ?>selected="true" <?php }; ?>value="b">b</option>
</select>
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2010-02-11 17:23:57
Después de probar al esto "resuelve" nada de trabajo. Hice alguna investigación sobre w3school antes y recuerde que había una explicación de mantener los valores sobre la radio. Pero también funciona para la opción Select. Vea aquí un ejemplo. Solo pruébalo y juega con él.
<?php
$example = $_POST["example"];
?>
<form method="post">
<select name="example">
<option <?php if (isset($example) && $example=="a") echo "selected";?>>a</option>
<option <?php if (isset($example) && $example=="b") echo "selected";?>>b</option>
<option <?php if (isset($example) && $example=="c") echo "selected";?>>c</option>
</select>
<input type="submit" name="submit" value="submit" />
</form>
Dado que wordpress ya usa jquery, puedes probar algo como esto:
var POST=<?php echo json_encode($_POST); ?>;
for(k in POST){
$("#"+k).val(POST[k]);
}
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2013-07-23 03:58:55
Si está utilizando Wordpress (como es el caso con el OP), puede utilizar el selected
función.
<form method="get" action="">
<select name="name">
<option value="a" <?php selected( isset($_POST['name']) ? $_POST['name'] : '', 'a' ); ?>>a</option>
<option value="b" <?php selected( isset($_POST['name']) ? $_POST['name'] : '', 'b' ); ?>>b</option>
</select>
<select name="location">
<option value="x" <?php selected( isset($_POST['location']) ? $_POST['location'] : '', 'x' ); ?>>x</option>
<option value="y" <?php selected( isset($_POST['location']) ? $_POST['location'] : '', 'y' ); ?>>y</option>
</select>
<input type="submit" value="Submit" class="submit" />
</form>
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2017-05-06 17:48:18
Js solución única:
var tmpParams = decodeURIComponent(window.location.search.substr(1)).split("&");
for (var i = 0; i < tmpParams.length; i++) {
var tmparr = tmpParams[i].split("=");
var tmp = document.getElementsByName(tmparr[0])[0];
if (!!tmp){
document.getElementsByName(tmparr[0])[0].value = tmparr[1];
}
}
O si está utilizando jquery puede reemplazar
var tmp = document.getElementsByName(tmparr[0])[0];
if (!!tmp){
document.getElementsByName(tmparr[0])[0].value = tmparr[1];
}
Con:
$('*[name="'+tmparr[0]+'"]').val(tmparr[1]);
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2013-04-13 15:55:33
Esto funciona para mí!
<label for="reason">Reason:</label>
<select name="reason" size="1" id="name" >
<option value="NG" selected="SELECTED"><?php if (!(strcmp("NG", $_POST["reason"]))) {echo "selected=\"selected\"";} ?>Selection a reason below</option>
<option value="General"<?php if (!(strcmp("General", $_POST["reason"]))) {echo "selected=\"selected\"";} ?>>General Question</option>
<option value="Account"<?php if (!(strcmp("Account", $_POST["reason"]))) {echo "selected=\"selected\"";} ?>>Account Question</option>
<option value="Other"<?php if (!(strcmp("Other", $_POST["reason"]))) {echo "selected=\"selected\"";} ?>>Other</option>
</select>
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2015-08-26 01:32:30
Pruebe esta solución para mantener el valor seleccionado en el menú desplegable:
<form action="<?php echo get_page_link(); ?>" method="post">
<select name="<?php echo $field_key['key']; ?>" onchange="javascript:
submit()">
<option value="">All Category</option>
<?php
foreach( $field['choices'] as $key => $value ){
if($post_key==$key){ ?>
<option value="<?php echo $key; ?>" selected><?php echo $value; ?></option>
<?php
}else{?>
<option value="<?php echo $key; ?>"><?php echo $value; ?></option>
<?php }
}?>
</select>
</form>
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2017-07-07 05:16:41
No trabajo mucho en WP, pero para formularios fuera de Wordpress, esto funciona bien.
PHP
location = ""; // declare variable
if($_POST) {
if(!$_POST["location"]) {
$error .= "Location is required.<br />"; // If not selected, add string to error message
}else{
$location = $_POST["location"]; // If selected, assign to variable
}
HTML
<select name="location">
<option value="0">Choose...</option>
<option value="1" <?php if (isset($location) && $location == "1") echo "selected" ?>>location 1</option>
<option value="2" <?php if (isset($location) && $location == "2") echo "selected" ?>>location 2</option>
</select>
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2018-08-03 07:46:39
<form method="get" action="">
<select name="name" value="<?php echo $_GET['name'];?>">
<option value="a">a</option>
<option value="b">b</option>
</select>
<select name="location" value="<?php echo $_GET['location'];?>">
<option value="x">x</option>
<option value="y">y</option>
</select>
<input type="submit" value="Submit" class="submit" />
</form>
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2015-01-21 09:33:13