I want a checkbox to be checked by default,

Question

When will I update my semester that time by default a checkbox to be checked how it possible ?

<select name="semester">
  <option value="">Select Semester</option>
  <option value="1">Semester 1</option>
  <option value="2">Semester 2</option>
  <option value="3">Semester 3</option>
</select>

You will need to show the PHP code so we can see what data is controlling which semester you want to select — RiggsFolly, Sep 08 '16 at 10:55

score 3 · Answer 1 · edited Sep 08 '16 at 12:15

3

You can use the selected attribute.

<select name="semester">
     <option value="">Select Semester</option>
     <option value="1" selected="selected">Semester 1</option>
     <option value="2">Semester 2</option>
     <option value="3">Semester 3</option>
</select>

edited Sep 08 '16 at 12:15

Dave

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answered Sep 08 '16 at 10:51

Ben Hillier

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I want to do it by php not html such as Rahim is a studen of 1s semister I want to update his semister when I will update that time his semister by default checked semister 1st – Omar Faruk Sep 08 '16 at 10:59
@OmarFaruk I've made a generic PHP example and posted it as a separate answer. – Ben Hillier Sep 08 '16 at 11:32

score 2 · Answer 2 · answered Sep 08 '16 at 10:52

If you want to select semester 2 so here you go:

HTML:

<select name="semester">
  <option value="">Select Semester</option>
  <option value="1">Semester 1</option>
  <option value="2" selected>Semester 2</option>
  <option value="3">Semester 3</option>
</select>

Jquery:

$("select option").each(function(){
  if ($(this).text() == "Semester 2")
    $(this).attr("selected","selected");
});

score 2 · Accepted Answer · answered Sep 08 '16 at 11:00

Please try this

<select name="semester">
            <option value="">Select Semester</option>
            <option value="1" <?php if($data['semester']==1){echo 'selected';}?>>Semester 1</option>
            <option value="2" <?php if($data['semester']==2){echo 'selected';}?>>Semester 2</option>
            <option value="3" <?php if($data['semester']==3){echo 'selected';}?>>Semester 3</option>
</select>

score 0 · Answer 4 · answered Sep 08 '16 at 10:55

yes,it possible. you have to use selected in <option>

<select name="semester">
        <option value="">Select Semester</option>
        <option value="1" selected>Semester 1</option>
        <option value="2">Semester 2</option>
        <option value="3">Semester 3</option>
</select>

DEMO

KBK · Answer 5 · 2016-09-08T11:16:01.090

0

<option value="1" <?= ($value=='1')?'selected':"" ?>>Semester 1</option>
<option value="2" <?= ($value=='2')?'selected':"" ?>>Semester 2</option>
<option value="3" <?= ($value=='3')?'selected':"" ?>>Semester 3</option>

you can get the value form database or session,

edited Sep 08 '16 at 11:16

answered Sep 08 '16 at 10:57

KBK

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1
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score 0 · Answer 6 · answered Sep 08 '16 at 11:30

We really need your specific PHP code to help, but perhaps this generic example will show you how to do this when you have your data and your desired value:

<?php
    //Your array of data
    $myData = array(
        '1' => 'Semester 1',
        '2' => 'Semester 2',
        '3' => 'Semester 3');

    //The value you want to be selected
    $myValue = "2";
?>

<select name="semester">
    <option value="">Select Semester</option>
        <?php
            foreach($myData as $key => $value){
                echo ('<option value="'.$key.'"' );
                if( $myValue == $key){
                    echo( ' selected="selected" ');
                }
                echo ('>'.$value.'</option');
                echo "\n";
            }
        ?>
</select>

I want a checkbox to be checked by default,

6 Answers6