HTML How to auto select a check box? [duplicate]

Question

I have the following HTML code:

<table border = 0 cellpadding=5 >

<tr>
<td><input type="checkbox" name="all_sizes" value="All">All<br></td>
<td><input type="checkbox" name="10mm" value="10mm">10mm<br></td>
<td><input type="checkbox" name="20mm" value="20mm">20mm<br></td>
<td><input type="checkbox" name="30mm" value="30mm">30mm<br></td>
<td><input type="checkbox" name="40mm" value="40mm">40mm<br></td>
</tr>
</table>

How would we go about selecting the first check box by default?

For XHTML the recommended way is as described. Check HTML manual and W3C to confirm. — Felipe Alameda A
– Felipe Alameda A, Commented Nov 17, 2012 at 5:45
The markup posted isn’t XHTML, so it’s logical to use just the simple keyword attribute checked. — Jukka K. Korpela
– Jukka K. Korpela, Commented Nov 17, 2012 at 9:19

ayla · Accepted Answer · 2012-11-17 05:25:20Z

11

Change this:

<td><input type="checkbox" name="all_sizes" value="All">All<br></td>

to this (add the keyword 'checked'):

<td><input type="checkbox" name="all_sizes" value="All" checked>All<br></td>

answered Nov 17, 2012 at 5:25

ayla

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Mr. Alien · Accepted Answer · 2012-11-17 05:46:27Z

5

Assuming that you've fetched your data from mysql using mysqli_query()

<td><input type="checkbox" name="all_sizes" value="All" <?php if($data['col_name'] == 'val') { echo 'checked'; }?>>Value</td>

edited Nov 17, 2012 at 5:46

answered Nov 17, 2012 at 5:32

Mr. Alien

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