HTML checkbox tick/untick with PHP code

Question

Everyone, hello!

I'm trying to tick/untick a HTML checkbox with help from my PHP code.

The option if a checkbox has to be ticked or unticked I get from a config.ini file, which looks like this:

config.ini

[com]
p_ip = x.x.x.x.
p_port = xxx
p_username = xxx
p_password = xxx

[trigger]
string1_enable = no
string2_enable = yes
string3_enable = no

And I've activated the config.ini file in my index.php file as such:

index.php

<?php $ini = parse_ini_file('config.ini'); ?>

Now, as far as the HTML is concerned, I've tried this:

<td><li><input type="checkbox" class="categories-checkbox" name="chk2" id="chk2"<?php if ($ini['string2_enable']=="yes") echo 'checked="yes"';?>><label for="chk2">Enable</label></li></td>

It doesn't throw an error, but it certainly won't enable. However, a simple:

<?php $ini = parse_ini_file('config.ini'); ?> 
<?php echo $ini['string2_enable']; ?>

yields a yes on my PHP page.

Any help would be greatly appreciated!

does the checked='yes' show up in the generated html? If not, then make SURE that what's coming out of the ini parse is really just the three letters y, e, s, and doesn't contain extra stuff, like spaces or line breaks or whatever. e.g. var_dump($ini) and see what actually parsed out of there. — Marc B
– Marc B, Commented Oct 14, 2016 at 20:05
I would use var_dump() instead of echo in this case, to ensure what @MarcB is saying. — Blue
– Blue, Commented Oct 14, 2016 at 20:05
you're right... A var_dump() revealed it comes up as: ["string2_enable"]=> string(0) "". How is this possible? It's clearly saves as "yes". — user5740843
– user5740843, Commented Oct 14, 2016 at 20:07

Chin Leung · Accepted Answer · 2016-10-14 20:08:32Z

2

String values "true", "on" and "yes" are converted to TRUE. "false", "off", "no" and "none" are considered FALSE.

Problem

The value of your $ini['string2_enable'] is converted to boolean (true) so your if case will fail as it's not equal to yes anymore.

Solution 1

So you have to replace your if case with this:

if($ini['string2_enable'])

Solution 2

If for some reason you want to keep your yes value when parsing, you could add a INI_SCANNER_RAW flag to your function:

$ini = parse_ini_file('config.ini', false, INI_SCANNER_RAW);

With this option, your if case will now work properly.

Source

For more information: http://php.net/manual/en/function.parse-ini-file.php

answered Oct 14, 2016 at 20:08

Chin Leung

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Comments

whobetter · Accepted Answer · 2016-10-14 20:20:02Z

1

<td><li><input type="checkbox" class="categories-checkbox" name="chk2" id="chk2"<?php if ($ini['string2_enable']=="yes") echo 'checked=true';?>><label for="chk2">Enable</label></li></td>

Notice "checked=true". Just "checked" would also work.

answered Oct 14, 2016 at 20:20

whobetter

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