How do I get checkbox as checked if value is stored in database?

Question

I am having a problem in retrieving checkboxes from the database. Actually I am making edit form by using the input form which insert the values in database. I am facing problem with checkboxes and other inputs works fine.

My code looks like

<input type="checkbox" name="proizvodi[]" value="0" <?if ($row['PROIZVODI'] == '0') $checked = 'checked="checked"'; ?> checked="checked"><b>product1<b/>                                    <input type="checkbox" name="proizvodi[]" value="1" <?if ($row['PROIZVODI'] == '1') $checked = 'checked="checked"'; ?> checked="checked"><b>product2<b/> <br/> 
<input type="checkbox" name="proizvodi[]" value="2" <?if ($row['PROIZVODI'] == '2') $checked = 'checked="checked"'; ?> checked="checked"><b>product3</b> <br/>

To make it more clear, I want only checkboes that are stored in db to be checked. for ex if value 1 is stored in db, product1 checkbox will be checked, if value 1 is no stored then check box will be not checked.

I appreciate any help or advice.

Thanks in advance!

Answer 1

How about this? You need to echo the 'checked="checked"' and do not assign it to a variable

    <input type="checkbox" name="proizvodi[]" value="0" <?php if (strpos($row['PROIZVODI'],'0') !== false) echo 'checked="checked"'; ?>><b>product1<b/>                                    
    <input type="checkbox" name="proizvodi[]" value="1" <?php if (strpos($row['PROIZVODI'],'1') !== false) echo 'checked="checked"'; ?>><b>product2<b/> <br/> 
    <input type="checkbox" name="proizvodi[]" value="2" <?php if (strpos($row['PROIZVODI'],'2') !== false) echo 'checked="checked"'; ?>><b>product3</b> <br/>

Answer 2

这样写行不会使它变得更难：

<input type="checkbox" name="proizvodi[]" value="0" <?php if ($row['PROIZVODI'] == '0') { ?> checked="checked" <?php } ?> /><b>product1<b/>